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Monthly climate in Charlotte Amalie, Virgin Islands (U.S.)

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Charlotte Amalie features a tropical monsoon climate (Am).Temperatures typically range between 25 °C (77 °F) and 28 °C (82 °F) through the year, but rarely can drop to 22 °C (72 °F) or can rise to as high as 29 °C (85 °F).The average annual precipitation amounts to about 911 mm (35.9 inches) and receives 179 rainy days on the 1 mm (0.04 inches) threshold annually.Charlotte Amalie enjoys an average of 3914 hours of sunshine throughout the year, and daylight varies from 11 hours 2 minutes to 13 hours 11 minutes per day.

Monthly average temperatures in Charlotte Amalie, Virgin Islands (U.S.) §

The warmest months in Charlotte Amalie are August, September and October, with daily mean temperatures ranging from 27 to 28 °C (82 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 25 to 25 °C (77 - 78 °F) throughout the day. On average each year, Charlotte Amalie experiences 322 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Charlotte Amalie, Virgin Islands (U.S.).Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 27°C
(80°F)		 27°C
(80°F)		 26°C
(80°F)		 27°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 28°C
(83°F)		 28°C
(83°F)
Mean maximum 27°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(84°F)		 28°C
(83°F)		 27°C
(82°F)
Average high 26°C
(79°F)		 26°C
(78°F)		 26°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 27°C
(82°F)		 27°C
(80°F)
Daily mean 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 27°C
(81°F)		 27°C
(82°F)		 28°C
(82°F)		 28°C
(82°F)		 27°C
(82°F)		 27°C
(80°F)		 26°C
(79°F)
Average low 25°C
(77°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 26°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 26°C
(80°F)		 26°C
(79°F)		 25°C
(78°F)
Mean minimum 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 24°C
(76°F)
Minimum 23°C
(74°F)		 22°C
(72°F)		 23°C
(73°F)		 23°C
(73°F)		 24°C
(75°F)		 25°C
(76°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(75°F)

Compare climate in Charlotte Amalie with other places

Compare temperature, precipitation, sunshine, UV index in Charlotte Amalie, Virgin Islands (U.S.) with other places around the world.

Monthly average precipitation in Charlotte Amalie, Virgin Islands (U.S.) §

Charlotte Amalie usually has the most precipitation in August, September and October, with an average of 18 rainy days and 135 mm (5.3 inches) of precipitation per month.The driest months in Charlotte Amalie are January, February and March. On average, 34 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Charlotte Amalie, Virgin Islands (U.S.).Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 32 (1.3) 31 (1.2) 38 (1.5) 40 (1.6) 58 (2.3) 62 (2.4) 92 (3.6) 110 (4.3) 161 (6.3) 133 (5.2) 106 (4.2) 50 (2.0)
Average precipitation days (≥ 1 mm) 13 11 11 9 13 16 19 18 19 17 17 16

Monthly sunshine hours in Charlotte Amalie, Virgin Islands (U.S.) §

The sunniest months in Charlotte Amalie are March, May and July, when the sun shines an average of 11 hours 24 minutes a day.Least sunny months in Charlotte Amalie: January, February and November receive an average of 9 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Charlotte Amalie, Virgin Islands (U.S.).Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 257 300 349 347 357 343 353 347 319 315 302 319
Mean daily daylight hours 11h 9m 11h 32m 12h 2m 12h 33m 12h 59m 13h 11m 13h 5m 12h 42m 12h 12m 11h 41m 11h 15m 11h 2m

Solar UV radiation in Charlotte Amalie, Virgin Islands (U.S.) §

Charlotte Amalie experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Charlotte Amalie UV Index data.

Average daily maximum UV levels by month for Charlotte Amalie, Virgin Islands (U.S.).Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 9 11 13 13 13 13 12 13 14 12 9 8