Measurements:
°C
°F
Grand Cayman
84°F
SE 9 mph
Feels like: 92°F
Precip: 0%
World Resorts Cayman Islands Grand Cayman Weather

Grand Cayman Sea Water Temperature

Current Sea Water Temperature:
+87.6°F
Maximum Sea Water Temperature in November: 90.0°F
Minimum Sea Water Temperature in November: 84.4°F
Average water temperature in November: 87.7°F

Sea Water Temperature for the Last 10 Days:

November 21 87.6°F November 16 88.4°F
November 20 87.6°F November 15 88.4°F
November 19 88.0°F November 08 88.0°F
November 18 87.6°F November 07 88.0°F
November 17 87.8°F November 06 88.6°F

When is the Warmest Sea for Grand Cayman?

According to our data for the last three years for Grand Cayman the highest average sea water temperature was in September, August and October.

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Grand Cayman was 91.0°F. The maximum and minimum values were 90.0°F and 91.8°F respectively.

Sea Water Temperature in August

Select Year: 2024 2023 2022

The average sea surface temperature in August 2024 for Grand Cayman was 91.0°F. The maximum and minimum values were 90.2°F and 91.8°F respectively.

Sea Water Temperature in October

Select Year: 2024 2023 2022

The average sea surface temperature in October 2024 for Grand Cayman was 89.6°F. The maximum and minimum values were 88.6°F and 90.6°F respectively.

Best Time to Visit Grand Cayman
The most sunny months:
July 11 days
September 10 days
March 10 days
The most warm months:
August 91.3 °F
July 91.2 °F
September 91.0 °F
Warmest sea temperature:
September 90.0 °F
August 89.8 °F
October 89.4 °F
The most cold months:
January 83.5 °F
February 83.8 °F
March 84.2 °F
The most rainy months:
October 8 days
November 6 days
August 5 days
The most windy months:
December 16 mph
November 16 mph
January 16 mph

Grand Cayman on the Weather Map

Cayman Islands Resorts:
NAME
Cayman Brac +84
George Town +84
Grand Cayman +84
Little Cayman +84
24 Hours Weather Forecast
Grand Cayman
Local time: 18:06
21 nov, thursday
2100 84°F
S
15 mph
22 nov, friday
0000 84°F
S
22 mph
0300 82°F
S
24 mph
0600 82°F
S
22 mph
0900 80°F
S
22 mph
1200 80°F
S
21 mph
1500 78°F
S
20 mph
1800 78°F
S
21 mph