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Climate and Average Weather Year Round at Guernsey Airport Guernsey

At Guernsey Airport, the summers are comfortable and windy; the winters are long, cold, wet, and extremely windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 42°F to 68°F and is rarely below 35°F or above 74°F.

Based on the tourism score, the best time of year to visit Guernsey Airport for warm-weather activities is from late June to mid September.

Climate at Guernsey Airport

coldcoolcomfortablecoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow57%57%34%34%overcastclearprecipitation: 3.1 inprecipitation: 3.1 in1.1 in1.1 inmuggy: 1%muggy: 1%0%0%drydrytourism score: 7.0tourism score: 7.00.30.3
Guernsey Airport weather by month. Click on each chart for more information.

The warm season lasts for 3.0 months, from June 19 to September 20, with an average daily high temperature above 64°F. The hottest month of the year at Guernsey Airport is August, with an average high of 67°F and low of 59°F.

The cool season lasts for 4.1 months, from November 28 to March 30, with an average daily high temperature below 52°F. The coldest month of the year at Guernsey Airport is February, with an average low of 42°F and high of 48°F.

Average High and Low Temperature at Guernsey Airport

Average High and Low Temperature at Guernsey AirportwarmcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 1848°FFeb 1848°FAug 368°FAug 368°F42°F42°F59°F59°FJun 1964°FJun 1964°FSep 2064°FSep 2064°FNov 2852°FNov 2852°FMar 3052°FMar 3052°F54°F54°F57°F57°F46°F46°F44°F44°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 48°F48°F50°F54°F59°F63°F67°F67°F64°F59°F54°F50°F
Temp. 46°F45°F47°F49°F54°F59°F62°F63°F61°F56°F51°F47°F
Low 43°F42°F43°F46°F50°F54°F58°F59°F57°F53°F48°F45°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature at Guernsey Airport

Average Hourly Temperature at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowvery coldcoldcoldcoolcomfortablevery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Long Beach, Washington, United States (4,953 miles away); Scottsdale, Australia (10,901 miles); and Upper Hutt, New Zealand (11,865 miles) are the far-away foreign places with temperatures most similar to Guernsey Airport (view comparison).

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At Guernsey Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year at Guernsey Airport begins around March 30 and lasts for 6.4 months, ending around October 11.

The clearest month of the year at Guernsey Airport is July, during which on average the sky is clear, mostly clear, or partly cloudy 57% of the time.

The cloudier part of the year begins around October 11 and lasts for 5.6 months, ending around March 30.

The cloudiest month of the year at Guernsey Airport is January, during which on average the sky is overcast or mostly cloudy 65% of the time.

Cloud Cover Categories at Guernsey Airport

Cloud Cover Categories at Guernsey AirportclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2357%Jul 2357%Dec 2634%Dec 2634%Mar 3045%Mar 3045%Oct 1146%Oct 1146%NowNowclearmostly clearpartly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 65%61%59%51%51%47%43%45%48%55%60%64%
Clearer 35%39%41%49%49%53%57%55%52%45%40%36%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Guernsey Airport varies throughout the year.

The wetter season lasts 5.5 months, from September 26 to March 12, with a greater than 28% chance of a given day being a wet day. The month with the most wet days at Guernsey Airport is December, with an average of 12.3 days with at least 0.04 inches of precipitation.

The drier season lasts 6.5 months, from March 12 to September 26. The month with the fewest wet days at Guernsey Airport is July, with an average of 5.3 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Guernsey Airport is December, with an average of 12.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 40% on December 5.

Daily Chance of Precipitation at Guernsey Airport

Daily Chance of Precipitation at Guernsey AirportwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Dec 2941%Dec 2941%Jul 2416%Jul 2416%Sep 2628%Sep 2628%Mar 1228%Mar 1228%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 11.4d9.4d8.6d7.1d6.8d5.6d5.3d5.6d7.1d10.4d11.4d12.3d
Mixed 0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d
Any 11.6d9.5d8.6d7.1d6.8d5.6d5.3d5.6d7.1d10.4d11.4d12.3d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Guernsey Airport experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Guernsey Airport. The month with the most rain at Guernsey Airport is December, with an average rainfall of 3.1 inches.

The month with the least rain at Guernsey Airport is July, with an average rainfall of 1.1 inches.

Average Monthly Rainfall at Guernsey Airport

Average Monthly Rainfall at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 inDec 153.1 inDec 153.1 inJul 221.1 inJul 221.1 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 2.7″2.2″1.7″1.5″1.5″1.3″1.1″1.2″1.7″2.6″2.9″3.1″

The length of the day at Guernsey Airport varies extremely over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 10 minutes of daylight; the longest day is June 20, with 16 hours, 17 minutes of daylight.

Hours of Daylight and Twilight at Guernsey Airport

Hours of Daylight and Twilight at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2016 hr, 17 minJun 2016 hr, 17 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 228 hr, 10 minDec 218 hr, 10 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 8.7h10.1h11.9h13.8h15.4h16.2h15.8h14.3h12.6h10.7h9.1h8.2h

The earliest sunrise is at 5:03 AM on June 16, and the latest sunrise is 3 hours, 3 minutes later at 8:06 AM on December 31. The earliest sunset is at 4:10 PM on December 11, and the latest sunset is 5 hours, 10 minutes later at 9:20 PM on June 25.

Daylight saving time (DST) is observed at Guernsey Airport during 2024, starting in the spring on March 31, lasting 6.9 months, and ending in the fall on October 27.

Sunrise & Sunset with Twilight and Daylight Saving Time at Guernsey Airport

Sunrise & Sunset with Twilight and Daylight Saving Time at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 165:03 AMJun 165:03 AM9:20 PMJun 259:20 PMJun 25Dec 114:10 PMDec 114:10 PM8:06 AMDec 318:06 AMDec 31Mar 31DSTMar 31DSTDSTOct 27DSTOct 27daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth at Guernsey Airport

Solar Elevation and Azimuth at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM000010101020203030404050000101010102020303040405050601764NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases at Guernsey Airport

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level at Guernsey Airport, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

Humidity Comfort Levels at Guernsey Airport

Humidity Comfort Levels at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 120%Mar 120%Aug 91%Aug 91%humidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.1d0.0d0.0d0.0d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Guernsey Airport experiences extreme seasonal variation over the course of the year.

The windier part of the year lasts for 5.7 months, from October 5 to March 29, with average wind speeds of more than 16.2 miles per hour. The windiest month of the year at Guernsey Airport is December, with an average hourly wind speed of 20.3 miles per hour.

The calmer time of year lasts for 6.3 months, from March 29 to October 5. The calmest month of the year at Guernsey Airport is July, with an average hourly wind speed of 12.2 miles per hour.

Average Wind Speed at Guernsey Airport

Average Wind Speed at Guernsey AirportwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mph30 mph30 mphJan 120.7 mphJan 120.7 mphAug 411.7 mphAug 411.7 mphOct 516.2 mphOct 516.2 mphMar 2916.2 mphMar 2916.2 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 20.318.716.915.013.412.312.212.414.717.319.220.3

The predominant average hourly wind direction at Guernsey Airport is from the west throughout the year.

Wind Direction at Guernsey Airport

Wind Direction at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Guernsey Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.3 months, from July 12 to October 22, with an average temperature above 59°F. The month of the year at Guernsey Airport with the warmest water is August, with an average temperature of 62°F.

The time of year with cooler water lasts for 3.8 months, from January 8 to May 3, with an average temperature below 51°F. The month of the year at Guernsey Airport with the coolest water is March, with an average temperature of 48°F.

Average Water Temperature at Guernsey Airport

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 50°F49°F48°F50°F52°F56°F60°F62°F62°F60°F57°F53°F

To characterize how pleasant the weather is at Guernsey Airport throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Guernsey Airport for general outdoor tourist activities is from late June to mid September, with a peak score in the last week of July.

Tourism Score at Guernsey Airport

Tourism Score at Guernsey Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.07.00.30.3NowNowtemperaturetemperature precipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Guernsey Airport for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.

Beach/Pool Score at Guernsey Airport

Beach/Pool Score at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810101.71.70.00.0NowNow cloudscloudsprecipitationprecipitation
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

While it does not do so every year, freezing temperatures are seen at Guernsey Airport over some winters. The day least likely to be in the growing season is January 16, with a 58% chance.

Time Spent in Various Temperature Bands and the Growing Season at Guernsey Airport

Time Spent in Various Temperature Bands and the Growing Season at Guernsey Airportgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%90%Feb 2790%Feb 2790%Dec 2190%Dec 2158%Jan 1658%Jan 16Jul 26100%Jul 26100%NowNowvery coldcoldcoolcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms at Guernsey Airport should appear around May 3, only rarely appearing before April 15 or after May 23.

Growing Degree Days at Guernsey Airport

Growing Degree Days at Guernsey AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°FMay 390°FMay 390°FAug 4900°FAug 4900°FNov 121,800°FNov 121,800°FDec 311,867°FDec 311,867°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.3 months, from May 5 to August 15, with an average daily incident shortwave energy per square meter above 5.6 kWh. The brightest month of the year at Guernsey Airport is June, with an average of 6.7 kWh.

The darker period of the year lasts for 3.8 months, from October 25 to February 20, with an average daily incident shortwave energy per square meter below 2.0 kWh. The darkest month of the year at Guernsey Airport is December, with an average of 0.8 kWh.

Average Daily Incident Shortwave Solar Energy at Guernsey Airport

Average Daily Incident Shortwave Solar Energy at Guernsey AirportbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 276.8 kWhJun 276.8 kWhDec 260.8 kWhDec 260.8 kWhMay 55.6 kWhMay 55.6 kWhAug 155.6 kWhAug 155.6 kWhOct 252.0 kWhOct 252.0 kWhFeb 202.0 kWhFeb 202.0 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 1.01.93.24.86.06.76.65.64.02.41.30.8

For the purposes of this report, the geographical coordinates of Guernsey Airport are 49.435 deg latitude, -2.602 deg longitude, and 315 ft elevation.

The topography within 2 miles of Guernsey Airport contains only modest variations in elevation, with a maximum elevation change of 354 feet and an average elevation above sea level of 191 feet. Within 10 miles also contains only modest variations in elevation (410 feet). Within 50 miles contains only modest variations in elevation (705 feet).

The area within 2 miles of Guernsey Airport is covered by water (37%), grassland (27%), and trees (25%), within 10 miles by water (96%), and within 50 miles by water (94%).

This report illustrates the typical weather at Guernsey Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Guernsey Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Jersey Airport, Saint-Brieuc – Armor Airport, Dinard–Pleurtuit–Saint-Malo Airport, Lannion, Portland / Rnas, Cherbourg – Maupertus Airport, Exeter Airport, and Bournemouth Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.