Diego Garcia, British Indian Ocean Territor, British Indian Ocean Territory Climate

Weather: 29.99°C/85.98°F, Wind SW at 2.06 km/h, 79% Humidity, 0% Chance of rain

British Indian Ocean Territory
(Photo by Martin Balle on Unsplash)

Diego Garcia Climate Summary

Located at an elevation of 0.55 meters (1.8 feet) above sea level, Diego Garcia has a Tropical marine; hot, humid climate (Classification: Am). The district’s yearly temperature is 26.79ºC (80.22ºF) and it is -0.77% lower than British Indian Ocean Territory’s averages. Diego Garcia typically receives about 143.54 millimeters (5.65 inches) of precipitation and has 195.74 rainy days (53.63% of the time) annually.

CountryBritish Indian Ocean Territory
CityBritish Indian Ocean Territor
Longitude72.4228556
Latitude-7.3195005
Attitude/Elevation0.55m (1.8ft)
Local timeFriday 12:48
Annual high temperature27.04ºC (80.67ºF)
Annual low temperature25.74ºC (78.33ºF)
Average annual precip.143.54mm (5.65in)
Warmest monthApril (27.84ºC / 82.11ºF)
Coldest MonthAugust (24.83ºC / 76.69ºF)
Wettest MonthDecember (213.3mm / 8.4in)
Driest MonthAugust (59.06mm / 2.33in)
Number of days with rainfall (≥ 1.0 mm)195.74 days (53.63%)
Days with no rain169.26 days (46.37%)
Humidity75.31%

Climate Diego Garcia: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)28.19(82.74)29.16(84.49)29.16(84.49)29.16(84.49)29.16(84.49)28.19(82.74)27.22(81.0)27.22(81.0)27.22(81.0)28.19(82.74)28.19(82.74)28.19(82.74)29.16(84.49)
Average high °C (°F)27.23(81.01)27.56(81.61)27.74(81.93)27.84(82.11)27.57(81.63)26.84(80.31)26.32(79.38)25.91(78.64)26.27(79.29)26.69(80.04)27.21(80.98)27.35(81.23)27.04(80.67)
Daily mean °C (°F)26.95(80.51)27.26(81.07)27.45(81.41)27.59(81.66)27.32(81.18)26.57(79.83)26.13(79.03)25.72(78.3)26.04(78.87)26.46(79.63)26.94(80.49)27.06(80.71)26.79(80.22)
Average low °C (°F)25.76(78.37)26.21(79.18)26.41(79.54)26.53(79.75)26.31(79.36)25.52(77.94)25.18(77.32)24.83(76.69)24.98(76.96)25.38(77.68)25.85(78.53)25.9(78.62)25.74(78.33)
Record low °C (°F)17.5(63.5)17.5(63.5)17.5(63.5)17.5(63.5)17.5(63.5)16.52(61.74)16.52(61.74)15.55(59.99)15.55(59.99)17.5(63.5)14.58(58.24)17.5(63.5)14.58(58.24)
Average precipitation mm (inches)208.07(8.19)189.59(7.46)183.04(7.21)134.78(5.31)86.69(3.41)103.44(4.07)138.05(5.44)59.06(2.33)137.64(5.42)129.24(5.09)139.49(5.49)213.3(8.4)143.54(5.65)
Average precipitation days (≥ 1.0 mm)22.0120.8519.3517.1513.3511.9312.378.3115.916.715.921.9216.31
Average relative humidity (%)74.6273.9973.4973.3574.876.4877.6178.1877.6776.0273.7673.7875.31
Mean monthly sunshine hours10.210.1410.2210.1910.149.89.559.299.4110.1310.3610.159.96

Climate Graph

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

Diego Garcia

Diego Garcia Temperature by Month

April
27.59°C | 81.66°F
March
27.45°C | 81.41°F
May
27.32°C | 81.18°F
February
27.26°C | 81.07°F
December
27.06°C | 80.71°F
January
26.95°C | 80.51°F
November
26.94°C | 80.49°F
June
26.57°C | 79.83°F
October
26.46°C | 79.63°F
July
26.13°C | 79.03°F
September
26.04°C | 78.87°F
August
25.72°C | 78.3°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 Temperature27.22°C (81.0°F)26.3°C (79.34°F)25.27°C (77.49°F)
Avg Temperature26.24°C (79.23°F)25.86°C (78.55°F)24.3°C (75.74°F)
Min Temperature26.24°C (79.23°F)21.48°C (70.66°F)16.52°C (61.74°F)
Dew PointMaxAverageMin
Dew Point23.33°C (73.99°F)22.73°C (72.91°F)20.41°C (68.74°F)
PrecipitationMaxAverageMinSum
Precipitation28.77mm | 1.13in5.78mm | 0.23in0.1mm | 0.0in179.21mm | 7.06in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind37.91kmh | 23.56mph29.29kmh | 18.2mph19.44kmh | 12.08mph
Gust Wind53.46kmh | 33.22mph41.7kmh | 25.91mph27.22kmh | 16.91mph
Sea Level PressureMaxAverageMin
Sea Level Pressure28.77mb5.78mb0.1mb
Diego Garcia

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
August° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-08-0126.24 | 79.2323.33 | 73.998219.44 | 12.0829.08 | 984.641.94 | 0.08
2019-08-0226.24 | 79.2323.33 | 73.998228.19 | 17.5229.08 | 984.640.68 | 0.03
2019-08-0326.24 | 79.2323.33 | 73.998128.19 | 17.5229.08 | 984.640.39 | 0.02
2019-08-0426.24 | 79.2323.33 | 73.998033.05 | 20.5429.05 | 983.660.97 | 0.04
2019-08-0526.24 | 79.2323.33 | 73.998034.02 | 21.1429.05 | 983.661.17 | 0.05
2019-08-0626.24 | 79.2323.33 | 73.998135.96 | 22.3429.05 | 983.667.58 | 0.3
2019-08-0725.27 | 77.4922.36 | 72.257928.19 | 17.5229.08 | 984.6416.72 | 0.66
2019-08-0826.24 | 79.2322.36 | 72.257834.99 | 21.7429.02 | 982.690.87 | 0.03
2019-08-0926.24 | 79.2321.38 | 70.487836.94 | 22.9529.05 | 983.661.07 | 0.04
2019-08-1025.27 | 77.4921.38 | 70.487735.96 | 22.3429.05 | 983.660.68 | 0.03
2019-08-1125.27 | 77.4922.36 | 72.258031.1 | 19.3229.05 | 983.661.36 | 0.05
2019-08-1225.27 | 77.4922.36 | 72.258037.91 | 23.5629.05 | 983.661.94 | 0.08
2019-08-1326.24 | 79.2322.36 | 72.258035.96 | 22.3429.05 | 983.661.65 | 0.06
2019-08-1426.24 | 79.2323.33 | 73.998234.99 | 21.7429.05 | 983.662.33 | 0.09
2019-08-1526.24 | 79.2323.33 | 73.998233.05 | 20.5429.05 | 983.6618.27 | 0.72
2019-08-1625.27 | 77.4923.33 | 73.998327.22 | 16.9129.05 | 983.6628.77 | 1.13
2019-08-1725.27 | 77.4923.33 | 73.998221.38 | 13.2828.99 | 981.726.42 | 0.25
2019-08-1826.24 | 79.2323.33 | 73.998421.38 | 13.2829.02 | 982.690.58 | 0.02
2019-08-1926.24 | 79.2323.33 | 73.998424.3 | 15.129.05 | 983.6614.0 | 0.55
2019-08-2026.24 | 79.2323.33 | 73.998329.16 | 18.1229.08 | 984.6418.27 | 0.72
2019-08-2126.24 | 79.2323.33 | 73.998328.19 | 17.5229.05 | 983.660.1 | 0.0
2019-08-2226.24 | 79.2323.33 | 73.998127.22 | 16.9129.05 | 983.6621.48 | 0.85
2019-08-2326.24 | 79.2322.36 | 72.258028.19 | 17.5229.05 | 983.669.43 | 0.37
2019-08-2425.27 | 77.4922.36 | 72.258024.3 | 15.129.08 | 984.640.19 | 0.01
2019-08-2525.27 | 77.4922.36 | 72.258222.36 | 13.8929.08 | 984.640.68 | 0.03
2019-08-2625.27 | 77.4922.36 | 72.258122.36 | 13.8929.05 | 983.660.39 | 0.02
2019-08-2725.27 | 77.4923.33 | 73.998225.27 | 15.729.05 | 983.662.14 | 0.08
2019-08-2826.24 | 79.2322.36 | 72.258032.08 | 19.9329.05 | 983.665.15 | 0.2
2019-08-2926.24 | 79.2322.36 | 72.258030.13 | 18.7229.05 | 983.660.29 | 0.01
2019-08-3024.3 | 75.7420.41 | 68.747629.16 | 18.1229.05 | 983.660.29 | 0.01
2019-08-3126.24 | 79.2322.36 | 72.258227.22 | 16.9128.99 | 981.7213.41 | 0.53

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