Measurements:
°C
°F
CURRENT WEATHER
00:49
Grand Cayman
88°F
W 9 mph
Feels like: 96°F
Precip: 17%
World Resorts Cayman Islands Grand Cayman Weather

7 Day Weather Forecast

10.19
mon
DAY
88°F
W 9 mph
precip
6%
NIGHT
86°F
W 8 mph
precip
51%
10.20
tue
DAY
86°F
SW 8 mph
precip
21%
NIGHT
86°F
SW 12 mph
precip
8%
10.21
wed
DAY
86°F
SW 10 mph
precip
66%
NIGHT
84°F
W 10 mph
precip
18%
10.22
thu
DAY
84°F
W 4 mph
precip
6%
NIGHT
84°F
SW 6 mph
precip
27%
10.23
fri
DAY
86°F
SW 5 mph
precip
11%
NIGHT
86°F
SW 7 mph
precip
6%
10.24
sat
DAY
86°F
NE 8 mph
precip
6%
NIGHT
86°F
S 7 mph
precip
14%
10.25
sun
DAY
84°F
SE 6 mph
precip
8%
NIGHT
84°F
SW 2 mph
precip
36%

Grand Cayman Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Grand Cayman was 29.7°F. The maximum and minimum values were 29.3°F and 30.0°F respectively.

Grand Cayman on the Weather Map

Best Time to Visit Grand Cayman
The most sunny months:
July 10 days
March 10 days
September 10 days
The most warm months:
August 91.1 °F
July 90.9 °F
September 90.9 °F
Warmest sea temperature:
September 90.2 °F
August 89.9 °F
October 89.5 °F
The most cold months:
January 83.4 °F
February 83.6 °F
March 84.3 °F
The most rainy months:
October 8 days
May 5 days
November 5 days
The most windy months:
December 16 mph
November 16 mph
January 16 mph
more details