Temperature
Hot by day, warm at night.
85°Ftypical August high
Typical range
August climate
August in Grand Cayman
Cayman Islands · Caribbean
Hot days and some sun. Hurricane risk near peak and humid air are the main drawbacks.
Some tradeoffs
Daytime high
85°F
Lows around 82°F
Rain
Rainy spells
Sun
12 h/day
Air feel
Very humid
Sea temp
86°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent, but usually comes in brief, on-and-off spells. About 15 wet days, more than in most months.
48%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
11.8 hAugust sunshine
Heat & humidity by month
Very humid air is a major factor this month.
87%August Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In August, afternoons feel about 88° and nights feel near 87°.
ComfortableWarmHotNight hours
Clear sky
Partly cloudy skies this month.
46%August Clear sky
Clear skyCloud
Wind pattern
August's typical breeze keeps the air from feeling as stagnant.
11 mphAugust Breezy
Sea temperature
86°FAugust sea temp
More detailIncludes daypart comfort
Typical August day
August stays around 84°F through the day and night, with little temperature relief.
Avg temp Typical range
Morning83°F
Feels 87°F
Rain20%
Cloud54%
Humid airVery high
Sun intensityModerate
Midday84°F
Feels 88°F
Rain18%
Cloud52%
Humid airVery high
Sun intensityStrong
Late afternoon84°F
Feels 89°F
Rain18%
Cloud52%
Humid airVery high
Sun intensityStrong
Early evening84°F
Feels 89°F
Rain19%
Cloud51%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 79 | 76 | 1.1 | 7 | 10.5 | 76 | 80 |
| Feb | 79 | 77 | 0.6 | 5 | 10.8 | 76 | 80 |
| Mar | 79 | 77 | 0.8 | 5 | 11.0 | 76 | 80 |
| Apr | 80 | 78 | 0.8 | 5 | 12.0 | 78 | 81 |
| May | 82 | 79 | 3.3 | 12 | 11.9 | 80 | 83 |
| Jun | 83 | 80 | 4.4 | 14 | 11.7 | 82 | 84 |
| Jul | 84 | 81 | 2.5 | 12 | 12.4 | 80 | 85 |
| Aug | 85 | 82 | 3.6 | 15 | 11.8 | 80 | 86 |
| Sep | 84 | 81 | 5.5 | 18 | 10.8 | 80 | 86 |
| Oct | 83 | 80 | 8.3 | 20 | 9.9 | 81 | 85 |
| Nov | 81 | 79 | 5.1 | 14 | 9.9 | 78 | 83 |
| Dec | 80 | 78 | 2.0 | 10 | 10.2 | 77 | 82 |
Similar climates
Similar
Similar travel styleGrand TurkTurks and Caicos IslandsSimilar travel styleBiminiBahamasSimilar travel styleWhitsundaysAustraliaSimilar travel styleCozumelMexico
Want a side-by-side climate view? Compare Grand Cayman with Grand Turk.
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 1, 2026
Data & methodology