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Spring Weather at Seychelles International Airport Seychelles

Daily high temperatures are around 84°F, rarely falling below 81°F or exceeding 88°F.

Daily low temperatures are around 77°F, rarely falling below 75°F or exceeding 80°F. The highest daily average low temperature is 78°F on September 27.

For reference, on April 6, the hottest day of the year, temperatures at Seychelles International Airport typically range from 79°F to 88°F, while on July 31, the coldest day of the year, they range from 77°F to 82°F.

Average High and Low Temperature in the Spring at Seychelles International Airport

Average High and Low Temperature in the Spring at Seychelles International AirportSepOctNov74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°F94°F94°FWinterSummerSep 183°FSep 183°F77°F77°FNov 3086°FNov 3086°F77°F77°FOct 184°FOct 184°F78°F78°FNov 185°FNov 185°F77°F77°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.

The figure below shows you a compact characterization of the hourly average spring temperatures. The horizontal axis is the day, 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 the Spring at Seychelles International Airport

Average Hourly Temperature in the Spring at Seychelles International AirportSepOctNov12 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 AMWinterSummerNowNowwarm
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.

Mapusagafou, American Samoa (9,015 miles away); Faanui, French Polynesia (10,080 miles); and Fernando de Noronha (Distrito Estadual), Pernambuco, Brazil (6,061 miles) are the far-away foreign places with temperatures most similar to Seychelles International Airport (view comparison).

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The spring at Seychelles International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 54% throughout the season. The lowest chance of overcast or mostly cloudy conditions is 51% on October 5.

The clearest day of the spring is October 5, with clear, mostly clear, or partly cloudy conditions 49% of the time.

For reference, on January 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 73%, while on October 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 49%.

Cloud Cover Categories in the Spring at Seychelles International Airport

Cloud Cover Categories in the Spring at Seychelles International AirportSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerJan 1127%Jan 1127%Sep 144%Sep 144%Nov 3045%Nov 3045%Oct 149%Oct 149%Nov 143%Nov 143%NowNowclearmostly clearpartly cloudymostly 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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Seychelles International Airport, the chance of a wet day over the course of the spring is very rapidly increasing, starting the season at 27% and ending it at 40%.

For reference, the year's highest daily chance of a wet day is 58% on December 29, and its lowest chance is 10% on July 26.

Probability of Precipitation in the Spring at Seychelles International Airport

Probability of Precipitation in the Spring at Seychelles International AirportSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%WinterSummerSep 127%Sep 127%Nov 3040%Nov 3040%Oct 124%Oct 124%Nov 140%Nov 140%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).

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the spring at Seychelles International Airport is rapidly increasing, starting the season at 2.6 inches, when it rarely exceeds 5.6 inches or falls below 0.2 inches, and ending the season at 4.0 inches, when it rarely exceeds 7.4 inches or falls below 1.2 inches.

Average Monthly Rainfall in the Spring at Seychelles International Airport

Average Monthly Rainfall in the Spring at Seychelles International AirportSepOctNov0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inWinterSummerSep 12.6 inSep 12.6 inNov 304.0 inNov 304.0 inOct 12.7 inOct 12.7 inNov 13.9 inNov 13.9 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.

Over the course of the spring at Seychelles International Airport, the length of the day is gradually increasing. From the start to the end of the season, the length of the day increases by 21 minutes, implying an average daily increase of 14 seconds, and weekly increase of 1 minute, 38 seconds.

The shortest day of the spring is September 1, with 12 hours, 1 minute of daylight and the longest day is November 30, with 12 hours, 22 minutes of daylight.

Hours of Daylight and Twilight in the Spring at Seychelles International Airport

Hours of Daylight and Twilight in the Spring at Seychelles International AirportSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrWinterSummerSep 2212 hr, 6 minSep 2212 hr, 6 mindaydaydaydaynightSep 112 hr, 1 minSep 112 hr, 1 minNov 3012 hr, 22 minNov 3012 hr, 22 minNov 112 hr, 17 minNov 112 hr, 17 min
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.

The latest sunrise of the spring at Seychelles International Airport is 6:17 AM on September 1 and the earliest sunrise is 25 minutes earlier at 5:52 AM on November 11.

The latest sunset is 6:18 PM on September 1 and the earliest sunset is 9 minutes earlier at 6:09 PM on October 24.

Daylight saving time is not observed at Seychelles International Airport during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 6:04 AM and sets 12 hours, 24 minutes later, at 6:28 PM, while on June 20, the shortest day of the year, it rises at 6:24 AM and sets 11 hours, 51 minutes later, at 6:15 PM.

Sunrise & Sunset with Twilight in the Spring at Seychelles International Airport

Sunrise & Sunset with Twilight in the Spring at Seychelles International AirportSepOctNov2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMWinterSummer5:52 AM5:52 AMNov 116:11 PMNov 116:11 PM6:17 AM6:17 AMSep 16:18 PMSep 16:18 PM5:54 AM5:54 AMOct 246:09 PMOct 246:09 PM5:55 AM5:55 AMNov 306:17 PMNov 306:17 PM6:03 AM6:03 AMOct 16:11 PMOct 16:11 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day in the spring. 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 the Spring at Seychelles International Airport

Solar Elevation and Azimuth in the Spring at Seychelles International AirportSepOctNov12 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 AMWinterSummer001020203030405050606070800010102030304040506060707080NowNow
northeastsouthwest
Solar elevation and azimuth in the the spring of 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 the spring of 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in the Spring at Seychelles International Airport

Moon Rise, Set & Phases in the Spring at Seychelles International AirportSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMWinterSummerAug 43:14 PMAug 43:14 PMAug 1910:26 PMAug 1910:26 PMSep 35:56 AMSep 35:56 AMSep 186:35 AMSep 186:35 AMOct 210:50 PMOct 210:50 PMOct 173:27 PMOct 173:27 PMNov 14:48 PMNov 14:48 PMNov 161:29 AMNov 161:29 AMDec 110:22 AMDec 110:22 AMDec 151:02 PMDec 151:02 PMDec 312:28 AMDec 312:28 AM6:28 PM6:28 PM6:11 PM6:11 PM6:48 AM6:48 AM6:39 PM6:39 PM5:44 PM5:44 PM6:13 AM6:13 AM5:39 AM5:39 AM5:59 PM5:59 PM6:10 PM6:10 PM6:28 AM6:28 AM5:33 AM5:33 AM6:05 PM6:05 PM5:47 PM5:47 PM6:01 AM6:01 AM5:45 AM5:45 AM6:30 PM6:30 PM6:36 PM6:36 PM6:46 AM6:46 AM7:10 PM7:10 PM
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 chance that a given day will be muggy at Seychelles International Airport is essentially constant during the spring, remaining around 100% throughout.

For reference, on January 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on August 12, the least muggy day of the year, there are muggy conditions 100% of the time.

Humidity Comfort Levels in the Spring at Seychelles International Airport

Humidity Comfort Levels in the Spring at Seychelles International AirportSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%WinterSummerSep 20100%Sep 20100%Sep 1100%Sep 1100%Nov 30100%Nov 30100%Nov 1100%Nov 1100%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.

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 Seychelles International Airport is very rapidly decreasing during the spring, decreasing from 16.7 miles per hour to 7.7 miles per hour over the course of the season.

For reference, on August 17, the windiest day of the year, the daily average wind speed is 17.0 miles per hour, while on April 6, the calmest day of the year, the daily average wind speed is 7.0 miles per hour.

The lowest daily average wind speed during the spring is 7.7 miles per hour on November 24.

Average Wind Speed in the Spring at Seychelles International Airport

Average Wind Speed in the Spring at Seychelles International AirportSepOctNov0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mphWinterSummerNov 247.7 mphNov 247.7 mphSep 116.7 mphSep 116.7 mphOct 113.4 mphOct 113.4 mphNov 18.9 mphNov 18.9 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction at Seychelles International Airport during the spring is predominantly out of the south from September 1 to November 21 and the west from November 21 to November 30.

Wind Direction in the Spring at Seychelles International Airport

Wind Direction in the Spring at Seychelles International AirportSWSepOctNov0%100%20%80%40%60%60%40%80%20%100%0%WinterSummerNowNowwestsoutheastnorth
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).

Seychelles International 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 surface water temperature at Seychelles International Airport is gradually increasing during the spring, rising by 3°F, from 80°F to 83°F, over the course of the season.

Average Water Temperature in the Spring at Seychelles International Airport

Average Water Temperature in the Spring at Seychelles International AirportSepOctNov76°F76°F77°F77°F78°F78°F79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°FWinterSummerSep 180°FSep 180°FNov 3083°FNov 3083°FOct 181°FOct 181°FNov 182°FNov 182°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 at Seychelles International Airport 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 the Spring at Seychelles International Airport

Time Spent in Various Temperature Bands and the Growing Season in the Spring at Seychelles International AirportSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummer100%Oct 16100%Oct 16NowNowwarmhot
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.

The average accumulated growing degree days at Seychelles International Airport are very rapidly increasing during the spring, increasing by 2,763°F, from 1,816°F to 4,579°F, over the course of the season.

Growing Degree Days in the Spring at Seychelles International Airport

Growing Degree Days in the Spring at Seychelles International AirportSepOctNov2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°F4,500°F4,500°FWinterSummerSep 11,816°FSep 11,816°FNov 304,579°FNov 304,579°FOct 12,725°FOct 12,725°FNov 13,681°FNov 13,681°FNowNow
The average growing degree days accumulated over the course of the spring, 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 at Seychelles International Airport is essentially constant during the spring, remaining within 0.2 kWh of 6.1 kWh throughout.

The highest average daily incident shortwave solar energy during the spring is 6.3 kWh on October 7.

Average Daily Incident Shortwave Solar Energy in the Spring at Seychelles International Airport

Average Daily Incident Shortwave Solar Energy in the Spring at Seychelles International AirportSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhWinterSummerOct 76.3 kWhOct 76.3 kWhSep 15.8 kWhSep 15.8 kWhNov 306.1 kWhNov 306.1 kWhNov 16.1 kWhNov 16.1 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.

For the purposes of this report, the geographical coordinates of Seychelles International Airport are -4.674 deg latitude, 55.522 deg longitude, and 7 ft elevation.

The topography within 2 miles of Seychelles International Airport contains large variations in elevation, with a maximum elevation change of 1,991 feet and an average elevation above sea level of 225 feet. Within 10 miles also contains large variations in elevation (2,989 feet). Within 50 miles also contains large variations in elevation (2,989 feet).

The area within 2 miles of Seychelles International Airport is covered by water (71%), grassland (13%), and trees (13%), within 10 miles by water (85%), and within 50 miles by water (99%).

This report illustrates the typical weather at Seychelles International 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

Seychelles International 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.

There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.

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.

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