Measurements:
°C
°F
CURRENT WEATHER
15:54
Little Cayman
90°F
SW 11 mph
Feels like: 102°F
Precip: 17%
World Resorts Cayman Islands Little Cayman Weather

7 Day Weather Forecast

09.08
tue
DAY
90°F
W 11 mph
precip
17%
NIGHT
90°F
SW 14 mph
precip
20%
09.09
wed
DAY
90°F
W 16 mph
precip
56%
NIGHT
90°F
W 9 mph
precip
17%
09.10
thu
DAY
90°F
NW 5 mph
precip
17%
NIGHT
86°F
W 3 mph
precip
20%
09.11
fri
DAY
90°F
W 7 mph
precip
4%
NIGHT
90°F
SW 8 mph
precip
41%
09.12
sat
DAY
90°F
NW 22 mph
precip
11%
NIGHT
90°F
W 13 mph
precip
18%
09.13
sun
DAY
90°F
W 14 mph
precip
18%
NIGHT
90°F
W 12 mph
precip
36%
09.14
mon
DAY
90°F
W 16 mph
precip
17%
NIGHT
90°F
W 11 mph
precip
21%

Little Cayman Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Little Cayman was 30.9°F. The maximum and minimum values were 30.6°F and 31.1°F respectively.

Little Cayman on the Weather Map

Best Time to Visit Little Cayman
The most sunny months:
March 12 days
July 12 days
February 11 days
The most warm months:
August 91.0 °F
September 90.8 °F
July 90.7 °F
Warmest sea temperature:
September 90.4 °F
August 90.3 °F
October 89.6 °F
The most cold months:
January 83.0 °F
February 83.2 °F
March 83.9 °F
The most rainy months:
October 7 days
May 5 days
August 5 days
The most windy months:
December 16 mph
November 16 mph
January 15 mph
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