MustiqueSaint Vincent and the Grenadines · Caribbean · August

August climate

BeachIslandYachting

August in Mustique

Saint Vincent and the Grenadines · Caribbean

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

Some tradeoffs

Daytime high

81°F

Lows around 78°F

Rain

Rain most days

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.

81°Ftypical August high

Typical range

Precipitation

It rains on most days. About 22 wet days, the highest monthly average.

71%wet-day frequency

AmountWet-day chance

Sunshine

A mix of sunshine and cloud.

5.3 hAugust sunshine

Heat & humidity by month

Very humid air is a major factor this month.

86%August Heat feel

Warm airHumid airVery humid air

Hourly temperature pattern

In August, afternoons feel about 83° and nights feel near 81°.

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.

14 mphAugust Breezy

Sea temperature

84°FAugust sea temp

More detailIncludes daypart comfort

Typical August day

August stays around 80°F through the day and night.

Avg temp Typical range

Morning80°F

Feels 82°F

Rain44%

Cloud53%

Humid airVery high

Sun intensityModerate

Midday80°F

Feels 82°F

Rain38%

Cloud53%

Humid airVery high

Sun intensityStrong

Late afternoon80°F

Feels 83°F

Rain30%

Cloud53%

Humid airVery high

Sun intensityModerate

Early evening80°F

Feels 83°F

Rain30%

Cloud50%

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	1.6	13	6.6	78	81
Feb	78	76	0.9	9	6.8	77	80
Mar	78	76	1.0	8	6.3	77	80
Apr	79	77	1.4	8	5.4	79	81
May	80	78	1.9	11	4.9	80	82
Jun	81	78	4.0	17	4.4	82	83
Jul	81	78	5.2	21	5.4	82	83
Aug	81	78	5.8	22	5.3	82	84
Sep	82	79	5.3	19	4.5	81	85
Oct	82	79	6.2	22	4.1	82	85
Nov	81	78	5.5	20	4.8	82	84
Dec	80	77	2.5	14	6.0	79	82

Similar climates

Want a side-by-side climate view? Compare Mustique with Phu Quoc.

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 19, 2026

Data & methodology

Month

High°F

Low°F

Rainin

Wet days

Sunh

Humidity%

Sea°F

Jan

1.6

6.6

Feb

0.9

6.8

Mar

1.0

6.3

Apr

1.4

5.4

May

1.9

4.9

Jun

4.0

4.4

Jul

5.2

5.4

Aug

5.8

5.3

Sep

5.3

4.5

Oct

6.2

4.1

Nov

5.5

4.8

Dec

2.5

6.0

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.6	13	6.6	78	81
Feb	78	76	0.9	9	6.8	77	80
Mar	78	76	1.0	8	6.3	77	80
Apr	79	77	1.4	8	5.4	79	81
May	80	78	1.9	11	4.9	80	82
Jun	81	78	4.0	17	4.4	82	83
Jul	81	78	5.2	21	5.4	82	83
Aug	81	78	5.8	22	5.3	82	84
Sep	82	79	5.3	19	4.5	81	85
Oct	82	79	6.2	22	4.1	82	85
Nov	81	78	5.5	20	4.8	82	84
Dec	80	77	2.5	14	6.0	79	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.6	13	6.6	78	81
Feb	78	76	0.9	9	6.8	77	80
Mar	78	76	1.0	8	6.3	77	80
Apr	79	77	1.4	8	5.4	79	81
May	80	78	1.9	11	4.9	80	82
Jun	81	78	4.0	17	4.4	82	83
Jul	81	78	5.2	21	5.4	82	83
Aug	81	78	5.8	22	5.3	82	84
Sep	82	79	5.3	19	4.5	81	85
Oct	82	79	6.2	22	4.1	82	85
Nov	81	78	5.5	20	4.8	82	84
Dec	80	77	2.5	14	6.0	79	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.6	13	6.6	78	81
Feb	78	76	0.9	9	6.8	77	80
Mar	78	76	1.0	8	6.3	77	80
Apr	79	77	1.4	8	5.4	79	81
May	80	78	1.9	11	4.9	80	82
Jun	81	78	4.0	17	4.4	82	83
Jul	81	78	5.2	21	5.4	82	83
Aug	81	78	5.8	22	5.3	82	84
Sep	82	79	5.3	19	4.5	81	85
Oct	82	79	6.2	22	4.1	82	85
Nov	81	78	5.5	20	4.8	82	84
Dec	80	77	2.5	14	6.0	79	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.6	13	6.6	78	81
Feb	78	76	0.9	9	6.8	77	80
Mar	78	76	1.0	8	6.3	77	80
Apr	79	77	1.4	8	5.4	79	81
May	80	78	1.9	11	4.9	80	82
Jun	81	78	4.0	17	4.4	82	83
Jul	81	78	5.2	21	5.4	82	83
Aug	81	78	5.8	22	5.3	82	84
Sep	82	79	5.3	19	4.5	81	85
Oct	82	79	6.2	22	4.1	82	85
Nov	81	78	5.5	20	4.8	82	84
Dec	80	77	2.5	14	6.0	79	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.6	13	6.6	78	81
Feb	78	76	0.9	9	6.8	77	80
Mar	78	76	1.0	8	6.3	77	80
Apr	79	77	1.4	8	5.4	79	81
May	80	78	1.9	11	4.9	80	82
Jun	81	78	4.0	17	4.4	82	83
Jul	81	78	5.2	21	5.4	82	83
Aug	81	78	5.8	22	5.3	82	84
Sep	82	79	5.3	19	4.5	81	85
Oct	82	79	6.2	22	4.1	82	85
Nov	81	78	5.5	20	4.8	82	84
Dec	80	77	2.5	14	6.0	79	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%	Sea°F
Jan	78	76	1.6	13	6.6	78	81
Feb	78	76	0.9	9	6.8	77	80
Mar	78	76	1.0	8	6.3	77	80
Apr	79	77	1.4	8	5.4	79	81
May	80	78	1.9	11	4.9	80	82
Jun	81	78	4.0	17	4.4	82	83
Jul	81	78	5.2	21	5.4	82	83
Aug	81	78	5.8	22	5.3	82	84
Sep	82	79	5.3	19	4.5	81	85
Oct	82	79	6.2	22	4.1	82	85
Nov	81	78	5.5	20	4.8	82	84
Dec	80	77	2.5	14	6.0	79	82