Charlotte Amalie weather in July

In July, Charlotte Amalie sees average daytime highs of 28°C and overnight lows near 26°C, with 80 mm of rain across 15.5 wet days and about 13 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 50% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 13 h 06 min at the start of July to 12 h 48 min by month's end. Set against the rest of the year, July is Charlotte Amalie's 7th-clearest and 1st-windiest month. For the whole year in context, see Charlotte Amalie's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
26°
10th coldest
Rainfall
80 mm
15.5 wet days
Daylight
13 hours
5:55 AM – 6:55 PM
Cloud cover
49%
7th clearest
Wind
27 km/h
1st windiest
Solar energy
6.49 kWh/m²
Travel score
5.8
out of 10

Charlotte Amalie is capital and largest city of the United States Virgin Islands.

Density
6,369/km²
people per km²
Founded
1666

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical July day in Charlotte Amalie reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, July runs on par with June and on par with August.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282827
292827
302827
312827

How July really feels in Charlotte Amalie

Once humidity and wind are folded in, July averages 5 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
5
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Charlotte Amalie weather by month

How July compares with the rest of the year at a glance. July is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 24°288.7117.5
Feb25° / 24°206.611.47.8
Mar25° / 24°215.911.97.9
Apr26° / 25°357.812.47.4
May27° / 26°751312.96.2
Jun28° / 26°5711.813.16.1
Jul28° / 26°8015.5135.8
Aug28° / 27°1021712.65.1
Sep28° / 27°13317.712.14.8
Oct28° / 26°1271811.65.3
Nov27° / 26°11916.411.15.7
Dec26° / 25°4711.510.96.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 16% of July, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36337
46337
56337
66436
76436
86436
96535
106535
116535
126535
136535
146535
156634
166634
176634
186634
196733
206733
216733
226733
236733
246733
256832
266832
276832
286931
296832
306832
316832

Chance of precipitation in July

Any precipitation

Charlotte Amalie gets around 80 mm of rain over 15.5 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 49% and peaks near 52% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
140
241
342
443
544
645
746
847
948
1049
1149
1250
1351
1451
1551
1652
1752
1852
1952
2052
2152
2252
2352
2452
2552
2652
2752
2852
2952
3052
3152

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the oppressive band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17426
27426
37426
47327
57327
67228
77228
87129
97030
106931
116931
126832
136733
146634
156535
166436
176337
186238
196139
206040
215941
225842
235743
245644
255644
265545
275446
285347
295248
305149
315050

Wind in July

Winds average 27 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 26 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
127breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1427breezy
1527breezy
1626breezy
1726breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2626breezy
2726breezy
2826breezy
2926breezy
3026breezy
3126breezy

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 06 min at the start of July to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over July. Sunrise moves from 5:50 AM to 6:00 AM, and sunset from 6:56 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:506:56
213.15:516:56
313.15:516:56
413.15:516:56
513.15:526:56
613.15:526:56
713.15:526:56
813.15:536:56
913.15:536:56
1013.05:536:56
1113.05:546:56
1213.05:546:56
1313.05:546:56
1413.05:556:56
1513.05:556:56
1613.05:556:55
1713.05:566:55
1813.05:566:55
1913.05:566:55
2013.05:576:55
2113.05:576:54
2212.95:576:54
2312.95:586:54
2412.95:586:54
2512.95:586:53
2612.95:596:53
2712.95:596:53
2812.95:596:52
2912.96:006:52
3012.96:006:52
3112.86:006:51

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.49 kWh/m².

For context, solar energy here swings from a low near 4.46 kWh/m² to a high of 6.63 kWh/m² in April across the year — July's 6.49 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in July

Hazard calendar for Charlotte Amalie

In seasonPeak

In July, Charlotte Amalie sits inside its atlantic hurricane, rainy season and dust season. The full year is below, with each hazard's peak months called out.

Charlotte Amalie sits in the Atlantic hurricane belt; the season peaks August–October.

Charlotte Amalie's rainy season runs May–May, when most of the year's rain falls.

Charlotte Amalie sees seasonal dust haze (July), heaviest in July.

Atlantic hurricane
Rainy season
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Charlotte Amalie?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.8
Sightseeing
8th-best month of the year
6.2
Beach & pool
8th-best month of the year

July is a reasonable time to visit Charlotte Amalie for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Charlotte Amalie in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Charlotte Amalie sees daytime highs around 28°C and nights near 26°C. Pack light clothes, rain gear and sun protection. Worth having: a windbreaker. About 16 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Charlotte Amalie in July

The nearest coast averages about 28°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 29°C and coldest in February near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr27Warm
May27Warm
Jun28Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Charlotte Amalie in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Charlotte Amalie peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 13UV 13Dec 17UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Charlotte Amalie in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Charlotte Amalie is worst in July — around 24 µg/m³ PM2.5 (moderate), about 4.5× the cleanest month (January, 5 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1124 µg/m³Jan 15 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar7Good
Apr9Good
May14Moderate
Jun24Moderate
Jul24Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov8Good
Dec5Good
Location & terrain

Where is Charlotte Amalie?

Charlotte Amalie sits at 18.3°N, 64.9°W, 6 m above sea level, in U.S. Virgin Islands. The nearest listed city is Road Town, 34 km away.

Road TownSaint Croix

Topography around Charlotte Amalie

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Charlotte Amalie.

Within 3 km, the terrain around Charlotte Amalie has significant variations in elevation — a maximum elevation change of 454 m around an average of 89 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 471 m; within 80 km, significant variations in elevation — a maximum elevation change of 515 m.

The land around Charlotte Amalie is covered by trees (52%) and water (29%) within 3 km, water (90%) within 16 km, and water (95%) within 80 km.

3 km
454 m
16 km
471 m
80 km
515 m
treesgrasslandartificial surfaceswater
July weather nearby: Road Town 34 km · Saint Croix 71 km · Fajardo 76 km · Humacao 97 km · Carolina 108 km · Trujillo Alto 114 km · Caguas 119 km · Guaynabo 125 km

U.S. Virgin Islands travel facts

Power plugs
Type A / B
110 V · 60 Hz
Prices
≈ 89% of US
price level, 2022
GDP per capita
$44,321
2022
Safe drinking water
99%
of population, 2024
Homicide rate
49.9
per 100k, 2012
Income group
High
World Bank

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Charlotte Amalie (18.3419°, -64.9307°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).