10-day forecast — Grand Cayman
Refreshed hourly
Thu · Today · 12 Nov
Showers
81°
79°
0.84 in
Wind14 mph S
Gusts21 mph
UV index2 – Low
Precip chance89%
Sunrise6:31 AM
Sunset5:47 PM
Fri · Tomorrow · 13 Nov
Showers
81°
80°
0.69 in
Wind13 mph W
Gusts18 mph
UV index8 – Very high
Precip chance86%
Sunrise6:32 AM
Sunset5:47 PM
Saturday · 14 Nov
Showers
82°
81°
0.11 in
Wind15 mph NE
Gusts19 mph
UV index8 – High
Precip chance70%
Sunrise6:32 AM
Sunset5:47 PM
Sunday · 15 Nov
Showers
82°
81°
0.42 in
Wind17 mph NE
Gusts20 mph
UV index6 – High
Precip chance82%
Sunrise6:33 AM
Sunset5:46 PM
Monday · 16 Nov
Showers
82°
79°
0.52 in
Wind17 mph E
Gusts21 mph
UV index6 – High
Precip chance83%
Sunrise6:33 AM
Sunset5:46 PM
Tuesday · 17 Nov
Showers
81°
78°
1.05 in
Wind16 mph E
Gusts22 mph
UV index6 – High
Precip chance86%
Sunrise6:34 AM
Sunset5:46 PM
Wednesday · 18 Nov
Showers
80°
78°
0.50 in
Wind10 mph NE
Gusts19 mph
UV index6 – High
Precip chance83%
Sunrise6:34 AM
Sunset5:46 PM
Thursday · 19 Nov
Showers
81°
80°
0.19 in
Wind9 mph NE
Gusts13 mph
UV index6 – High
Precip chance76%
Sunrise6:35 AM
Sunset5:46 PM
Friday · 20 Nov
Showers
81°
80°
0.11 in
Wind9 mph NE
Gusts12 mph
UV index6 – High
Precip chance72%
Sunrise6:36 AM
Sunset5:45 PM
Saturday · 21 Nov
Showers
82°
80°
0.09 in
Wind10 mph NE
Gusts13 mph
UV index6 – High
Precip chance69%
Sunrise6:36 AM
Sunset5:45 PM
Sunday · 22 Nov
Showers
82°
80°
0.05 in
Wind10 mph NE
Gusts13 mph
UV index6 – High
Precip chance60%
Sunrise6:37 AM
Sunset5:45 PM
Monday · 23 Nov
Showers
82°
79°
0.03 in
Wind11 mph E
Gusts15 mph
UV index6 – High
Precip chance48%
Sunrise6:37 AM
Sunset5:45 PM
Tuesday · 24 Nov
Showers
82°
80°
0.04 in
Wind9 mph NE
Gusts15 mph
UV index6 – High
Precip chance58%
Sunrise6:38 AM
Sunset5:45 PM
Wednesday · 25 Nov
Showers
82°
80°
0.03 in
Wind14 mph NE
Gusts17 mph
UV index6 – High
Precip chance52%
Sunrise6:39 AM
Sunset5:45 PM
About Grand Cayman
CountryCayman Islands
RegionGeorge Town
Population29,370
ContinentNorth America & Caribbean
Time zoneAmerica/Cayman (-05:00)
Latitude19.2860°
Longitude-81.3670°
Air QualityGood (AQI 24)
Details & indices
Wind
8 mph S
Gusts 15 mph
Humidity
84%
Dew point 75°
Pressure
29.80 inHg
Falling
UV index
2 — Low
High today
Air Quality
Good
AQI 24 · US EPA
Visibility
6 mi
Reduced
Sun & moon
Sunrise6:31 AM
Sunset5:47 PM
Length of day11h 16m
Moonrise9:46 AM
Moonset8:45 PM
Moon phase🌔 Waxing Crescent
Local time7:00 PM (-05:00)
Grand Cayman climate in September
8-year averages · when to visitBest months: January–December · September: Good
| August | September | October | |
|---|---|---|---|
| Average temperature | → 84°F | 84°F | ▼ 82°F |
| Typical high | → 88°F | 88°F | ▼ 86°F |
| Typical low | → 81°F | 81°F | ▼ 79°F |
| Water temperature | ▲ 87°F | 88°F | ▼ 86°F |
| Precipitation | ▲ 4.1 in | 4.6 in | ▲ 5.1 in |
| Wet days | ▲ 18 d | 22 d | → 22 d |
| Sunshine per day | ▼ 11.5 h | 10.9 h | ▼ 10.2 h |
| Cloud cover | ▲ 10% | 11% | ▲ 12% |
| Midday UV | ▼ 12 | 11 | ▼ 9 |
| Daylight | 12:46 | 12:14 | 11:42 |
| Our take | Good | Good | Good |
September temperatures day by day daily mean + smoothed trend · °F
September precipitation day by day in
September UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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NBM + global weather models
Updated: 7:00 PM
Grand Cayman, Cayman Islands · 19.29°N, 81.37°W · America/Cayman · Forecast computed for these exact coordinates