St. JohnUS Virgin Islands · Caribbean · August

August climate

BeachIslandNature

August in St. John

US Virgin Islands · Caribbean

Warm days and some sun. Humid air is the main drawback.

Some tradeoffs

Early to mid

Daytime high

83°F

Lows around 80°F

Rain

Frequent rain

Sun

5.5 h/day

Air feel

Very humid

Sea temp

84°F

Great for swimming

When to visit

Month-by-month fit

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Switch month

Temperature

Warm by day, warm at night.

83°Ftypical August high

Typical range

Precipitation

Rain is frequent. About 17 wet days, more than in most months.

55%wet-day frequency

AmountWet-day chance

Sunshine

A mix of sunshine and cloud.

5.5 hAugust sunshine

Heat & humidity by month

Very humid air is a major factor this month.

56%August Heat feel

Easy airWarm airHumid airVery humid air

Hourly temperature pattern

In August, afternoons feel about 84° and nights feel near 82°.

ComfortableWarmHotNight hours

Clear sky

Partly cloudy skies this month.

47%August Clear sky

Clear skyCloud

Wind pattern

August's typical breeze keeps the air from feeling as stagnant.

15 mphAugust Breezy

Sea temperature

84°FAugust sea temp

More detailIncludes daypart comfort

Typical August day

August stays around 82°F through the day and night, with little temperature relief.

Avg temp Typical range

Morning81°F

Feels 83°F

Rain30%

Cloud51%

Humid airVery high

Sun intensityModerate

Midday82°F

Feels 84°F

Rain23%

Cloud50%

Humid airVery high

Sun intensityStrong

Late afternoon82°F

Feels 84°F

Rain24%

Cloud51%

Humid airVery high

Sun intensityStrong

Early evening82°F

Feels 84°F

Rain27%

Cloud53%

Humid airVery high

Sun intensityMinimal

Best window

Data table

View month-by-month numbers

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.2	10	6.9	77	80
Feb	78	76	1.0	7	7.3	77	80
Mar	78	76	0.9	7	7.2	76	80
Apr	79	76	1.6	9	6.9	78	80
May	80	78	2.8	13	5.0	81	82
Jun	82	79	2.3	12	5.2	81	83
Jul	82	80	3.3	16	5.9	81	83
Aug	83	80	4.3	17	5.5	82	84
Sep	83	80	5.1	18	4.5	81	85
Oct	82	80	5.5	18	4.7	81	85
Nov	81	78	4.9	16	5.4	80	83
Dec	80	77	1.9	12	6.4	78	82

Similar climates

Want a side-by-side climate view? Compare St. John with St. Lucia.

Climate data notePlanning guidance, not a forecast

Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.

Sunshine: source type is not yet identified at metric level.

Local microclimates can vary by beach, neighborhood, trail, or elevation.

Last updated: Jun 13, 2026

Data & methodology

Month

High°F

Low°F

Rainin

Wet days

Sunh

Humidity%

Sea°F

Jan

1.2

6.9

Feb

1.0

7.3

Mar

0.9

7.2

Apr

1.6

6.9

May

2.8

5.0

Jun

2.3

5.2

Jul

3.3

5.9

Aug

4.3

5.5

Sep

5.1

4.5

Oct

5.5

4.7

Nov

4.9

5.4

Dec

1.9

6.4

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.2	10	6.9	77	80
Feb	78	76	1.0	7	7.3	77	80
Mar	78	76	0.9	7	7.2	76	80
Apr	79	76	1.6	9	6.9	78	80
May	80	78	2.8	13	5.0	81	82
Jun	82	79	2.3	12	5.2	81	83
Jul	82	80	3.3	16	5.9	81	83
Aug	83	80	4.3	17	5.5	82	84
Sep	83	80	5.1	18	4.5	81	85
Oct	82	80	5.5	18	4.7	81	85
Nov	81	78	4.9	16	5.4	80	83
Dec	80	77	1.9	12	6.4	78	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.2	10	6.9	77	80
Feb	78	76	1.0	7	7.3	77	80
Mar	78	76	0.9	7	7.2	76	80
Apr	79	76	1.6	9	6.9	78	80
May	80	78	2.8	13	5.0	81	82
Jun	82	79	2.3	12	5.2	81	83
Jul	82	80	3.3	16	5.9	81	83
Aug	83	80	4.3	17	5.5	82	84
Sep	83	80	5.1	18	4.5	81	85
Oct	82	80	5.5	18	4.7	81	85
Nov	81	78	4.9	16	5.4	80	83
Dec	80	77	1.9	12	6.4	78	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.2	10	6.9	77	80
Feb	78	76	1.0	7	7.3	77	80
Mar	78	76	0.9	7	7.2	76	80
Apr	79	76	1.6	9	6.9	78	80
May	80	78	2.8	13	5.0	81	82
Jun	82	79	2.3	12	5.2	81	83
Jul	82	80	3.3	16	5.9	81	83
Aug	83	80	4.3	17	5.5	82	84
Sep	83	80	5.1	18	4.5	81	85
Oct	82	80	5.5	18	4.7	81	85
Nov	81	78	4.9	16	5.4	80	83
Dec	80	77	1.9	12	6.4	78	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.2	10	6.9	77	80
Feb	78	76	1.0	7	7.3	77	80
Mar	78	76	0.9	7	7.2	76	80
Apr	79	76	1.6	9	6.9	78	80
May	80	78	2.8	13	5.0	81	82
Jun	82	79	2.3	12	5.2	81	83
Jul	82	80	3.3	16	5.9	81	83
Aug	83	80	4.3	17	5.5	82	84
Sep	83	80	5.1	18	4.5	81	85
Oct	82	80	5.5	18	4.7	81	85
Nov	81	78	4.9	16	5.4	80	83
Dec	80	77	1.9	12	6.4	78	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.2	10	6.9	77	80
Feb	78	76	1.0	7	7.3	77	80
Mar	78	76	0.9	7	7.2	76	80
Apr	79	76	1.6	9	6.9	78	80
May	80	78	2.8	13	5.0	81	82
Jun	82	79	2.3	12	5.2	81	83
Jul	82	80	3.3	16	5.9	81	83
Aug	83	80	4.3	17	5.5	82	84
Sep	83	80	5.1	18	4.5	81	85
Oct	82	80	5.5	18	4.7	81	85
Nov	81	78	4.9	16	5.4	80	83
Dec	80	77	1.9	12	6.4	78	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.2	10	6.9	77	80
Feb	78	76	1.0	7	7.3	77	80
Mar	78	76	0.9	7	7.2	76	80
Apr	79	76	1.6	9	6.9	78	80
May	80	78	2.8	13	5.0	81	82
Jun	82	79	2.3	12	5.2	81	83
Jul	82	80	3.3	16	5.9	81	83
Aug	83	80	4.3	17	5.5	82	84
Sep	83	80	5.1	18	4.5	81	85
Oct	82	80	5.5	18	4.7	81	85
Nov	81	78	4.9	16	5.4	80	83
Dec	80	77	1.9	12	6.4	78	82