Charlotte Amalie climate

Name: Charlotte Amalie
Address: VI

Charlotte Amalie is warmest in September, with average highs of 28 °C, and coldest in February, when nights average 24 °C. September is the wettest month (135 mm) and February the driest (21 mm). Figures are 1991–2020 climate normals.

Across a full year Charlotte Amalie averages 858 mm of rain and 338 days above 25 °C.

U.S. Virgin Islands · 6 m elevation · population 20,000 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month September 28 °C
Coldest month February 24 °C
Driest month February 21 mm
Wettest month September 135 mm
Least cloud February 29 % cloud
Hottest on record October 30 °C
Coldest on record February 21 °C
Warmest sea September 29 °C

What to expectCharlotte Amalie through the year

Charlotte Amalie changes little through the year. Average daily highs stay between 25 and 28 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 338 days a year reach 25 °C. The warmest reading in the 1991–2020 record is 30 °C, in October.

Rain is strongly seasonal. September averages 135 mm against 21 mm in February — 6.4 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Charlotte Amalie is warmest in September at 29 °C and coldest in February at 26 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	25.5 °C	29 mm	30 %
February	25.3 °C	21 mm	29 %
March	25.3 °C	22 mm	33 %
April	25.9 °C	36 mm	38 %
May	26.7 °C	76 mm	57 %
June	27.5 °C	57 mm	56 %
July	27.8 °C	82 mm	50 %
August	28.1 °C	102 mm	52 %
September	28.1 °C	135 mm	59 %
October	27.8 °C	127 mm	55 %
November	27.1 °C	121 mm	46 %
December	26.2 °C	49 mm	36 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C
January	25.5 °C	24.3 °C	25.0 °C	27.0 °C	21.4 °C	26
February	25.3 °C	24.1 °C	24.7 °C	26.8 °C	21.3 °C	19
March	25.3 °C	24.1 °C	24.8 °C	27.5 °C	21.7 °C	21
April	25.9 °C	24.6 °C	25.3 °C	28.0 °C	22.4 °C	28
May	26.7 °C	25.3 °C	26.1 °C	28.8 °C	22.7 °C	31
June	27.5 °C	26.1 °C	26.9 °C	29.2 °C	24.1 °C	30
July	27.8 °C	26.2 °C	27.1 °C	29.1 °C	24.3 °C	31
August	28.1 °C	26.5 °C	27.4 °C	29.5 °C	24.7 °C	31
September	28.1 °C	26.4 °C	27.4 °C	29.4 °C	24.2 °C	30
October	27.8 °C	26.2 °C	27.1 °C	29.6 °C	24.0 °C	31
November	27.1 °C	25.6 °C	26.4 °C	28.7 °C	23.2 °C	30
December	26.2 °C	24.9 °C	25.6 °C	28.1 °C	22.4 °C	30

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	29 mm	9	11 h/day	30 %	77 %	30 km/h	26.4 °C
February	21 mm	7	12 h/day	29 %	76 %	30 km/h	26.1 °C
March	22 mm	6	12 h/day	33 %	76 %	28 km/h	26.1 °C
April	36 mm	8	13 h/day	38 %	78 %	27 km/h	26.7 °C
May	76 mm	13	13 h/day	57 %	80 %	27 km/h	27.4 °C
June	57 mm	11	13 h/day	56 %	81 %	29 km/h	28.0 °C
July	82 mm	14	13 h/day	50 %	81 %	31 km/h	28.2 °C
August	102 mm	17	13 h/day	52 %	81 %	30 km/h	28.6 °C
September	135 mm	17	12 h/day	59 %	81 %	27 km/h	28.9 °C
October	127 mm	18	12 h/day	55 %	81 %	25 km/h	28.9 °C
November	121 mm	16	11 h/day	46 %	80 %	28 km/h	28.3 °C
December	49 mm	11	11 h/day	36 %	78 %	30 km/h	27.2 °C

How Charlotte Amalie compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Charlotte Amalie	28 °C	24 °C	858 mm	338
Road Town · British Virgin Islands	28 °C	24 °C	825 mm	336
Carolina · Puerto Rico	31 °C	21 °C	1,200 mm	364
San Juan · Puerto Rico	31 °C	21 °C	903 mm	364
Gustavia · Saint Barthelemy	28 °C	24 °C	757 mm	342
Basseterre · Saint Kitts and Nevis	29 °C	24 °C	807 mm	357
Plymouth · Montserrat	29 °C	24 °C	775 mm	361

Planning a trip? See the best time to visit Charlotte Amalie.

QuestionsCommon questions about Charlotte Amalie’s climate

When is the best time to visit Charlotte Amalie?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, February, March sit closest to 20 °C on average, September is the warmest month and February the driest. The month-by-month table above has the full picture.

How hot does Charlotte Amalie get?

In September, the warmest month, daily highs average 28 °C. The highest value in the 1991–2020 record is 30 °C.

How cold does it get in winter?

Nights average 24 °C in February, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Charlotte Amalie?

September, averaging 135 mm over 17 days with rain. The driest month is February with 21 mm. The year as a whole averages 858 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Charlotte Amalie rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.