Georgetown, Ascension, Saint Helena Climate

Weather: 23.28°C/73.9°F, Wind SW at 6.62 km/h, 74% Humidity, 0% Chance of rain

Saint Helena
(Photo by Joe Dudeck on Unsplash)

Georgetown Climate Summary

Located at an elevation of 15.93 meters (52.26 feet) above sea level, Georgetown has a Tropical and subtropical desert climate climate (Classification: Bwh). The district’s yearly temperature is 26.38ºC (79.48ºF) and it is 5.88% higher than Saint Helena’s averages. Georgetown typically receives about 31.4 millimeters (1.24 inches) of precipitation and has 151.24 rainy days (41.44% of the time) annually.

Country Saint Helena
City Ascension
Longitude -14.4112011
Latitude -7.926223
Attitude/Elevation 15.93m (52.26ft)
Local time Saturday 09:29
Annual high temperature 26.83ºC (80.29ºF)
Annual low temperature 25.64ºC (78.15ºF)
Average annual precip. 31.4mm (1.24in)
Warmest month April (28.83ºC / 83.89ºF)
Coldest Month September (23.99ºC / 75.18ºF)
Wettest Month July (44.4mm / 1.75in)
Driest Month January (18.45mm / 0.73in)
Number of days with rainfall (≥ 1.0 mm) 151.24 days (41.44%)
Days with no rain 213.76 days (58.56%)
Humidity 82.52%

Climate Georgetown: Weather By Month

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 28.52(83.34) 29.58(85.24) 30.63(87.13) 30.63(87.13) 29.58(85.24) 29.58(85.24) 28.52(83.34) 27.46(81.43) 26.41(79.54) 26.41(79.54) 26.41(79.54) 27.46(81.43) 30.63(87.13)
Average high °C (°F) 27.03(80.65) 27.89(82.2) 28.74(83.73) 28.83(83.89) 28.25(82.85) 27.36(81.25) 26.45(79.61) 25.6(78.08) 25.17(77.31) 25.24(77.43) 25.47(77.85) 25.92(78.66) 26.83(80.29)
Daily mean °C (°F) 26.52(79.74) 27.4(81.32) 28.22(82.8) 28.43(83.17) 27.84(82.11) 26.94(80.49) 25.95(78.71) 25.17(77.31) 24.69(76.44) 24.76(76.57) 25.07(77.13) 25.48(77.86) 26.38(79.48)
Average low °C (°F) 25.73(78.31) 26.75(80.15) 27.52(81.54) 27.76(81.97) 27.02(80.64) 26.31(79.36) 25.13(77.23) 24.52(76.14) 23.99(75.18) 24.04(75.27) 24.29(75.72) 24.59(76.26) 25.64(78.15)
Record low °C (°F) 15.84(60.51) 16.9(62.42) 17.96(64.33) 17.96(64.33) 19.01(66.22) 16.9(62.42) 15.84(60.51) 14.79(58.62) 13.73(56.71) 13.73(56.71) 14.79(58.62) 14.79(58.62) 13.73(56.71)
Average precipitation mm (inches) 18.45(0.73) 19.19(0.76) 29.03(1.14) 35.91(1.41) 30.08(1.18) 36.36(1.43) 44.4(1.75) 43.22(1.7) 37.77(1.49) 33.27(1.31) 26.38(1.04) 22.74(0.9) 31.4(1.24)
Average precipitation days (≥ 1.0 mm) 5.19 4.32 5.66 8.26 10.37 14.88 19.3 22.37 20.94 17.86 12.58 9.51 12.6
Average relative humidity (%) 83.8 83.82 82.93 81.78 80.44 79.28 79.56 81.8 83.69 84.62 84.81 83.65 82.52
Mean monthly sunshine hours 10.71 10.97 11.2 10.72 10.31 10.31 9.93 9.49 9.02 8.82 9.02 9.33 9.98

Climate Graph

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

Georgetown

Georgetown Temperature by Month

April
28.43°C | 83.17°F
March
28.22°C | 82.8°F
May
27.84°C | 82.11°F
February
27.4°C | 81.32°F
June
26.94°C | 80.49°F
January
26.52°C | 79.74°F
July
25.95°C | 78.71°F
December
25.48°C | 77.86°F
August
25.17°C | 77.31°F
November
25.07°C | 77.13°F
October
24.76°C | 76.57°F
September
24.69°C | 76.44°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
Temperature Max Average Min
Max Temperature 25.35°C (77.63°F) 24.86°C (76.75°F) 24.29°C (75.72°F)
Avg Temperature 24.29°C (75.72°F) 23.94°C (75.09°F) 23.24°C (73.83°F)
Min Temperature 24.29°C (75.72°F) 19.22°C (66.6°F) 13.73°C (56.71°F)
Dew Point Max Average Min
Dew Point 21.13°C (70.03°F) 20.14°C (68.25°F) 19.01°C (66.22°F)
Precipitation Max Average Min Sum
Precipitation 2.43mm | 0.1in 1.48mm | 0.06in 0.85mm | 0.03in 44.35mm | 1.75in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 35.91kmh | 22.31mph 29.58kmh | 18.38mph 23.24kmh | 14.44mph
Gust Wind 49.65kmh | 30.85mph 40.42kmh | 25.12mph 31.69kmh | 19.69mph
Sea Level Pressure Max Average Min
Sea Level Pressure 2.43mb 1.48mb 0.85mb
Georgetown

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
September ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2020-09-01 23.24 | 73.83 20.07 | 68.13 77 33.8 | 21.0 31.66 | 1072.14 1.69 | 0.07
2020-09-02 23.24 | 73.83 20.07 | 68.13 76 25.35 | 15.75 31.63 | 1071.09 1.9 | 0.07
2020-09-03 24.29 | 75.72 20.07 | 68.13 75 23.24 | 14.44 31.66 | 1072.14 1.16 | 0.05
2020-09-04 23.24 | 73.83 21.13 | 70.03 79 32.75 | 20.35 31.72 | 1074.26 1.27 | 0.05
2020-09-05 23.24 | 73.83 20.07 | 68.13 76 32.75 | 20.35 31.72 | 1074.26 1.48 | 0.06
2020-09-06 24.29 | 75.72 20.07 | 68.13 79 33.8 | 21.0 31.63 | 1071.09 1.58 | 0.06
2020-09-07 24.29 | 75.72 21.13 | 70.03 81 29.58 | 18.38 31.63 | 1071.09 2.11 | 0.08
2020-09-08 24.29 | 75.72 20.07 | 68.13 80 32.75 | 20.35 31.63 | 1071.09 1.16 | 0.05
2020-09-09 23.24 | 73.83 20.07 | 68.13 78 32.75 | 20.35 31.69 | 1073.2 1.48 | 0.06
2020-09-10 24.29 | 75.72 20.07 | 68.13 77 28.52 | 17.72 31.69 | 1073.2 1.16 | 0.05
2020-09-11 24.29 | 75.72 19.01 | 66.22 75 25.35 | 15.75 31.63 | 1071.09 1.27 | 0.05
2020-09-12 24.29 | 75.72 20.07 | 68.13 76 29.58 | 18.38 31.66 | 1072.14 1.58 | 0.06
2020-09-13 24.29 | 75.72 20.07 | 68.13 78 33.8 | 21.0 31.72 | 1074.26 1.27 | 0.05
2020-09-14 24.29 | 75.72 20.07 | 68.13 78 35.91 | 22.31 31.72 | 1074.26 1.58 | 0.06
2020-09-15 24.29 | 75.72 20.07 | 68.13 77 33.8 | 21.0 31.69 | 1073.2 2.11 | 0.08
2020-09-16 24.29 | 75.72 20.07 | 68.13 76 31.69 | 19.69 31.66 | 1072.14 1.58 | 0.06
2020-09-17 24.29 | 75.72 20.07 | 68.13 78 31.69 | 19.69 31.66 | 1072.14 2.43 | 0.1
2020-09-18 24.29 | 75.72 19.01 | 66.22 75 27.46 | 17.06 31.69 | 1073.2 1.16 | 0.05
2020-09-19 23.24 | 73.83 19.01 | 66.22 76 25.35 | 15.75 31.72 | 1074.26 1.69 | 0.07
2020-09-20 24.29 | 75.72 20.07 | 68.13 77 27.46 | 17.06 31.72 | 1074.26 0.95 | 0.04
2020-09-21 24.29 | 75.72 20.07 | 68.13 79 29.58 | 18.38 31.69 | 1073.2 1.27 | 0.05
2020-09-22 23.24 | 73.83 19.01 | 66.22 75 27.46 | 17.06 31.72 | 1074.26 0.85 | 0.03
2020-09-23 24.29 | 75.72 20.07 | 68.13 77 24.29 | 15.09 31.69 | 1073.2 1.48 | 0.06
2020-09-24 24.29 | 75.72 21.13 | 70.03 80 25.35 | 15.75 31.69 | 1073.2 1.48 | 0.06
2020-09-25 24.29 | 75.72 21.13 | 70.03 80 27.46 | 17.06 31.72 | 1074.26 1.48 | 0.06
2020-09-26 23.24 | 73.83 20.07 | 68.13 79 27.46 | 17.06 31.69 | 1073.2 1.48 | 0.06
2020-09-27 23.24 | 73.83 20.07 | 68.13 78 30.63 | 19.03 31.63 | 1071.09 1.48 | 0.06
2020-09-28 24.29 | 75.72 20.07 | 68.13 76 28.52 | 17.72 31.63 | 1071.09 1.58 | 0.06
2020-09-29 24.29 | 75.72 21.13 | 70.03 80 28.52 | 17.72 31.69 | 1073.2 1.27 | 0.05
2020-09-30 23.24 | 73.83 21.13 | 70.03 81 30.63 | 19.03 31.66 | 1072.14 1.37 | 0.05

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