Temperature
Hot by day, warm at night.
84°Ftypical September high
Typical range
September climate
September in George Town
Cayman Islands · Caribbean
Hot days and some sun. Hurricane risk near peak and humid air are the main drawbacks.
Some tradeoffs
Daytime high
84°F
Lows around 81°F
Rain
Rain most days
Sun
11 h/day
Air feel
Very humid
Sea temp
86°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
It rains on most days. About 18 wet days, more than in most months.
60%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
10.8 hSeptember sunshine
Heat & humidity by month
Very humid air is a major factor this month.
83%September Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 88° and nights feel near 86°.
ComfortableWarmHotNight hours
Clear sky
Partly cloudy skies this month.
41%September Clear sky
Clear skyCloud
Wind pattern
September's typical breeze keeps the air from feeling as stagnant.
11 mphSeptember Breezy
Sea temperature
86°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September stays around 83°F through the day and night, with little temperature relief.
Avg temp Typical range
Morning83°F
Feels 87°F
Rain23%
Cloud58%
Humid airVery high
Sun intensityModerate
Midday83°F
Feels 88°F
Rain24%
Cloud56%
Humid airVery high
Sun intensityStrong
Late afternoon83°F
Feels 88°F
Rain25%
Cloud57%
Humid airVery high
Sun intensityModerate
Early evening83°F
Feels 88°F
Rain25%
Cloud56%
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 stylePlaya del CarmenMexicoSimilar travel styleCozumelMexico
Want a side-by-side climate view? Compare George Town 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: Jul 31, 2026
Data & methodology