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Climate and Average Weather Year Round in Unanu Micronesia

The climate in Unanu is warm, oppressive, windy, and overcast. Over the course of the year, the temperature typically varies from 81°F to 83°F and is rarely below 80°F or above 85°F.

Based on the beach/pool score, the best time of year to visit Unanu for hot-weather activities is from late December to mid April.

Climate in Unanu

warmJanFebMarAprMayJunJulAugSepOctNovDecNowNow26%26%11%11%overcastprecipitation: 9.1 inprecipitation: 9.1 in3.9 in3.9 inmuggy: 100%muggy: 100%beach/pool score: 5.6beach/pool score: 5.64.04.0
Unanu weather by month. Click on each chart for more information.

The temperature in Unanu varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature in Unanu

Average High and Low Temperature in UnanuJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 2182°FFeb 2182°FNov 1783°FNov 1783°F81°F81°F82°F82°F82°F82°F81°F81°F81°F81°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 82°F82°F82°F83°F83°F83°F83°F83°F83°F83°F83°F83°F
Temp. 82°F82°F82°F82°F83°F83°F82°F82°F82°F82°F83°F83°F
Low 82°F81°F81°F82°F82°F82°F81°F81°F82°F82°F82°F82°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 in Unanu

Average Hourly Temperature in UnanuJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowwarm
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.

San Andrés, Colombia (8,582 miles away) is the far-away foreign place with temperatures most similar to Unanu (view comparison).

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In Unanu, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year in Unanu begins around December 17 and lasts for 4.1 months, ending around April 20.

The clearest month of the year in Unanu is February, during which on average the sky is clear, mostly clear, or partly cloudy 26% of the time.

The cloudier part of the year begins around April 20 and lasts for 7.9 months, ending around December 17.

The cloudiest month of the year in Unanu is July, during which on average the sky is overcast or mostly cloudy 89% of the time.

Cloud Cover Categories in Unanu

Cloud Cover Categories in UnanuclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Feb 226%Feb 226%Jul 2011%Jul 2011%Dec 1719%Dec 1719%Apr 2019%Apr 2019%NowNowmostly clearpartly cloudymostly cloudyovercastclear
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 77%74%76%80%85%87%89%88%88%87%85%82%
Clearer 23%26%24%20%15%13%11%12%12%13%15%18%

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

The wetter season lasts 6.1 months, from May 12 to November 15, with a greater than 52% chance of a given day being a wet day. The month with the most wet days in Unanu is August, with an average of 21.9 days with at least 0.04 inches of precipitation.

The drier season lasts 5.9 months, from November 15 to May 12. The month with the fewest wet days in Unanu is February, with an average of 9.7 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 in Unanu is August, with an average of 21.9 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 73% on August 6.

Daily Chance of Precipitation in Unanu

Daily Chance of Precipitation in UnanuwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Aug 673%Aug 673%Feb 2431%Feb 2431%May 1252%May 1252%Nov 1552%Nov 1552%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 11.5d9.7d10.8d12.3d16.4d18.9d20.5d21.9d20.0d19.1d15.7d13.6d

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. Unanu experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Unanu. The month with the most rain in Unanu is August, with an average rainfall of 9.1 inches.

The month with the least rain in Unanu is February, with an average rainfall of 3.9 inches.

Average Monthly Rainfall in Unanu

Average Monthly Rainfall in UnanuJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 inAug 149.1 inAug 149.1 inFeb 153.9 inFeb 153.9 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 4.1″3.9″4.4″5.6″6.1″6.9″7.9″9.1″8.8″7.4″6.4″5.1″

The length of the day in Unanu does not vary substantially over the course of the year, staying within 38 minutes of 12 hours throughout. In 2024, the shortest day is December 21, with 11 hours, 37 minutes of daylight; the longest day is June 21, with 12 hours, 38 minutes of daylight.

Hours of Daylight and Twilight in Unanu

Hours of Daylight and Twilight in UnanuJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2012 hr, 38 minJun 2112 hr, 38 minJun 2112 hr, 7 minSep 2212 hr, 7 minSep 2211 hr, 37 minDec 2111 hr, 37 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 11.7h11.8h12.1h12.3h12.5h12.6h12.6h12.4h12.2h11.9h11.7h11.6h

The earliest sunrise is at 5:38 AM on May 27, and the latest sunrise is 41 minutes later at 6:19 AM on January 30. The earliest sunset is at 5:34 PM on November 15, and the latest sunset is 47 minutes later at 6:22 PM on July 13.

Daylight saving time (DST) is not observed in Unanu during 2024.

Sunrise & Sunset with Twilight in Unanu

Sunrise & Sunset with Twilight in UnanuJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMay 275:38 AMMay 275:38 AM6:22 PMJul 136:22 PMJul 13Nov 155:34 PMNov 155:34 PM6:19 AMJan 306:19 AMJan 30daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 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 in Unanu

Solar Elevation and Azimuth in UnanuJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM0000101010102020202030303030404040405050505060606060707070800000101010102020202030303030404040405050505060606070708058NowNow
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 in Unanu

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 in Unanu, 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 100% throughout.

Humidity Comfort Levels in Unanu

Humidity Comfort Levels in UnanuJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 2100%Jul 2100%NowNowmiserablemiserableoppressiveoppressivemuggymuggy
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 31.0d29.0d31.0d30.0d31.0d30.0d31.0d31.0d30.0d31.0d30.0d31.0d

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 in Unanu experiences extreme seasonal variation over the course of the year.

The windier part of the year lasts for 5.6 months, from November 21 to May 7, with average wind speeds of more than 13.4 miles per hour. The windiest month of the year in Unanu is February, with an average hourly wind speed of 17.6 miles per hour.

The calmer time of year lasts for 6.4 months, from May 7 to November 21. The calmest month of the year in Unanu is August, with an average hourly wind speed of 9.4 miles per hour.

Average Wind Speed in Unanu

Average Wind Speed in UnanuwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mph22 mph22 mphFeb 317.8 mphFeb 317.8 mphJul 239.1 mphJul 239.1 mphNov 2113.4 mphNov 2113.4 mphMay 713.4 mphMay 713.4 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) 17.517.616.915.112.911.49.59.49.49.812.616.3

The predominant average hourly wind direction in Unanu is from the east throughout the year.

Wind Direction in Unanu

Wind Direction in UnanuJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwesteastsouthnorth
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).

Unanu 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 does not vary significantly over the course of the year, remaining within 1°F of 84°F throughout.

Average Water Temperature in Unanu

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 83°F82°F83°F83°F84°F84°F85°F85°F85°F85°F84°F84°F

To characterize how pleasant the weather is in Unanu 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 Unanu for general outdoor tourist activities is from late January to mid March, with a peak score in the last week of February.

Tourism Score in Unanu

Tourism Score in Unanubest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810103.33.31.71.71.81.8NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism 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 Unanu for hot-weather activities is from late December to mid April, with a peak score in the last week of February.

Beach/Pool Score in Unanu

Beach/Pool Score in Unanubest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.65.64.04.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
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).

Temperatures in Unanu are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in Unanu

Time Spent in Various Temperature Bands and the Growing Season in UnanuJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowwarm
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.

Growing Degree Days in Unanu

Growing Degree Days in UnanuJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FJan 490°FJan 490°FDec 3111,743°FDec 3111,743°FNowNow
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 some seasonal variation over the course of the year.

The brighter period of the year lasts for 2.0 months, from February 13 to April 15, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest month of the year in Unanu is March, with an average of 6.3 kWh.

The darker period of the year lasts for 5.7 months, from June 4 to November 25, with an average daily incident shortwave energy per square meter below 4.5 kWh. The darkest month of the year in Unanu is July, with an average of 4.0 kWh.

Average Daily Incident Shortwave Solar Energy in Unanu

Average Daily Incident Shortwave Solar Energy in UnanubrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMar 176.4 kWhMar 176.4 kWhJul 164.0 kWhJul 164.0 kWhJun 44.5 kWhJun 44.5 kWhNov 254.5 kWhNov 254.5 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) 5.45.96.35.94.94.34.04.14.24.14.34.9

For the purposes of this report, the geographical coordinates of Unanu are 8.750 deg latitude, 150.341 deg longitude, and 36 ft elevation.

The topography within 2 miles of Unanu is essentially flat, with a maximum elevation change of 49 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (49 feet). Within 50 miles is also essentially flat (75 feet).

The area within 2 miles of Unanu is covered by water (100%), within 10 miles by water (100%), and within 50 miles by water (100%).

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

Unanu is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Unanu, according to the International Standard Atmosphere .

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.

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.