Ascension, Saint Helena Climate

Weather: 25.34°C/77.61°F, Wind SW at 8.75 km/h, 74% Humidity, 0% Chance of rain

Saint Helena
(Photo by JJ Shev on Unsplash)
Contents

Ascension Climate Summary

Located at an elevation of 521.3 meters (1710.3 feet) above sea level, Ascension has a Tropical and subtropical desert climate climate (Classification: Bwh). The city’s yearly temperature is 24.97ºC (76.95ºF) and it is 4.47% higher than Saint Helena’s averages. Ascension typically receives about 29.73 millimeters (1.17 inches) of precipitation and has 143.18 rainy days (39.23% of the time) annually.

CountrySaint Helena
Longitude-14.3559158
Latitude-7.9467166
Attitude/Elevation521.3m (1710.3ft)
Local timeTuesday 19:38
Annual high temperature25.4ºC (77.72ºF)
Annual low temperature24.27ºC (75.69ºF)
Average annual precip.29.73mm (1.17in)
Warmest monthApril (27.29ºC / 81.12ºF)
Coldest MonthSeptember (22.71ºC / 72.88ºF)
Wettest MonthJuly (42.03mm / 1.65in)
Driest MonthJanuary (17.47mm / 0.69in)
Number of days with rainfall (≥ 1.0 mm)143.18 days (39.23%)
Days with no rain221.82 days (60.77%)
Humidity78.12%

Climate Ascension: Monthly Averages

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)27.0(80.6)28.0(82.4)29.0(84.2)29.0(84.2)28.0(82.4)28.0(82.4)27.0(80.6)26.0(78.8)25.0(77.0)25.0(77.0)25.0(77.0)26.0(78.8)29.0(84.2)
Average high °C (°F)25.59(78.06)26.4(79.52)27.21(80.98)27.29(81.12)26.74(80.13)25.9(78.62)25.04(77.07)24.24(75.63)23.83(74.89)23.89(75.0)24.11(75.4)24.54(76.17)25.4(77.72)
Daily mean °C (°F)25.11(77.2)25.94(78.69)26.72(80.1)26.91(80.44)26.36(79.45)25.5(77.9)24.57(76.23)23.83(74.89)23.37(74.07)23.44(74.19)23.73(74.71)24.12(75.42)24.97(76.95)
Average low °C (°F)24.36(75.85)25.32(77.58)26.05(78.89)26.28(79.3)25.58(78.04)24.91(76.84)23.79(74.82)23.21(73.78)22.71(72.88)22.76(72.97)23.0(73.4)23.28(73.9)24.27(75.69)
Record low °C (°F)15.0(59.0)16.0(60.8)17.0(62.6)17.0(62.6)18.0(64.4)16.0(60.8)15.0(59.0)14.0(57.2)13.0(55.4)13.0(55.4)14.0(57.2)14.0(57.2)13.0(55.4)
Average precipitation mm (inches)17.47(0.69)18.17(0.72)27.48(1.08)34.0(1.34)28.48(1.12)34.42(1.36)42.03(1.65)40.92(1.61)35.76(1.41)31.5(1.24)24.97(0.98)21.53(0.85)29.73(1.17)
Average precipitation days (≥ 1.0 mm)4.914.095.367.829.8214.0918.2721.1819.8216.9111.919.011.93
Average relative humidity (%)79.3379.3578.5177.4276.1575.0575.3277.4479.2380.1180.2979.1978.12
Mean monthly sunshine hours10.1410.3910.610.159.769.769.48.988.548.358.548.839.45

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Ascension in recent years.

Ascension

Ascension Temperature by Month

April
26.91°C | 80.44°F
March
26.72°C | 80.1°F
May
26.36°C | 79.45°F
February
25.94°C | 78.69°F
June
25.5°C | 77.9°F
January
25.11°C | 77.2°F
July
24.57°C | 76.23°F
December
24.12°C | 75.42°F
August
23.83°C | 74.89°F
November
23.73°C | 74.71°F
October
23.44°C | 74.19°F
September
23.37°C | 74.07°F

Historical Data

Summary
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature28.0°C (82.4°F)27.27°C (81.09°F)26.0°C (78.8°F)
Avg Temperature28.0°C (82.4°F)26.7°C (80.06°F)26.0°C (78.8°F)
Min Temperature27.0°C (80.6°F)21.93°C (71.47°F)17.0°C (62.6°F)
Dew PointMaxAverageMin
Dew Point24.0°C (75.2°F)22.8°C (73.04°F)21.0°C (69.8°F)
PrecipitationMaxAverageMinSum
Precipitation4.8mm | 0.19in1.51mm | 0.06in0.0mm | 0in45.2mm | 1.78in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind35.0kmh | 21.75mph25.2kmh | 15.66mph17.0kmh | 10.56mph
Gust Wind49.0kmh | 30.45mph34.43kmh | 21.39mph23.0kmh | 14.29mph
Sea Level PressureMaxAverageMin
Sea Level Pressure4.8mb1.51mb0.0mb
Ascension

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
April° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-04-0127 | 80.624 | 75.28129 | 18.0229.88 | 10121.8 | 0.07
2020-04-0227 | 80.623 | 73.47828 | 17.429.88 | 10121.3 | 0.05
2020-04-0327 | 80.622 | 71.67624 | 14.9129.88 | 10120.4 | 0.02
2020-04-0427 | 80.621 | 69.87018 | 11.1829.88 | 10120.0 | 0.0
2020-04-0527 | 80.622 | 71.67422 | 13.6729.88 | 10120.0 | 0.0
2020-04-0627 | 80.623 | 73.47922 | 13.6729.91 | 10131.1 | 0.04
2020-04-0727 | 80.623 | 73.47627 | 16.7829.88 | 10120.6 | 0.02
2020-04-0827 | 80.622 | 71.67525 | 15.5329.88 | 10120.5 | 0.02
2020-04-0927 | 80.622 | 71.67317 | 10.5629.85 | 10111.7 | 0.07
2020-04-1026 | 78.823 | 73.48126 | 16.1629.88 | 10122.1 | 0.08
2020-04-1127 | 80.624 | 75.28128 | 17.429.88 | 10122.1 | 0.08
2020-04-1227 | 80.624 | 75.28130 | 18.6429.88 | 10120.9 | 0.04
2020-04-1326 | 78.823 | 73.48128 | 17.429.88 | 10122.6 | 0.1
2020-04-1426 | 78.823 | 73.47827 | 16.7829.85 | 10111.9 | 0.07
2020-04-1527 | 80.623 | 73.47730 | 18.6429.88 | 10121.1 | 0.04
2020-04-1627 | 80.623 | 73.47735 | 21.7529.88 | 10121.8 | 0.07
2020-04-1726 | 78.822 | 71.67519 | 11.8129.88 | 10120.2 | 0.01
2020-04-1827 | 80.623 | 73.47620 | 12.4329.91 | 10131.3 | 0.05
2020-04-1926 | 78.823 | 73.47718 | 11.1829.94 | 10142.3 | 0.09
2020-04-2026 | 78.823 | 73.47927 | 16.7829.91 | 10132.6 | 0.1
2020-04-2128 | 82.423 | 73.47830 | 18.6429.91 | 10132.1 | 0.08
2020-04-2227 | 80.623 | 73.47832 | 19.8829.88 | 10123.0 | 0.12
2020-04-2326 | 78.821 | 69.87228 | 17.429.88 | 10120.2 | 0.01
2020-04-2426 | 78.821 | 69.87122 | 13.6729.88 | 10120.5 | 0.02
2020-04-2526 | 78.822 | 71.67522 | 13.6729.91 | 10130.8 | 0.03
2020-04-2627 | 80.623 | 73.47723 | 14.2929.91 | 10131.1 | 0.04
2020-04-2727 | 80.623 | 73.47922 | 13.6729.91 | 10132.7 | 0.11
2020-04-2826 | 78.824 | 75.28327 | 16.7829.91 | 10132.2 | 0.09
2020-04-2927 | 80.624 | 75.28122 | 13.6729.94 | 10144.8 | 0.19
2020-04-3027 | 80.624 | 75.28228 | 17.429.94 | 10141.5 | 0.06

Ascension 10 Year Historical Weather Data

Nearby locations

Comments (0)

  • Latest first
  • Highest rated
Be the first to comment on this page