Measurements:
°C
°F
Cayman Brac
86°F
NW 9 mph
Feels like: 94°F
Precip: 0%
World Resorts Cayman Islands Cayman Brac Weather

Cayman Brac Sea Water Temperature

Current Sea Water Temperature:
+88.2°F
Maximum Sea Water Temperature in May: 90.4°F
Minimum Sea Water Temperature in May: 84.2°F
Average water temperature in May: 86.9°F

Sea Water Temperature for the Last 10 Days:

May 29 88.2°F May 24 88.8°F
May 28 88.2°F May 23 88.6°F
May 27 88.4°F May 22 88.8°F
May 26 89.0°F May 21 88.6°F
May 25 89.0°F May 20 88.4°F

When is the Warmest Sea for Cayman Brac?

According to our data for the last three years for Cayman Brac 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: 2025 2024 2023

The average sea surface temperature in September 2025 for Cayman Brac was 91.8°F. The maximum and minimum values were 91.2°F and 92.4°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Cayman Brac was 91.4°F. The maximum and minimum values were 90.4°F and 92.4°F respectively.

Sea Water Temperature in October

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Cayman Brac was 90.9°F. The maximum and minimum values were 89.6°F and 92.0°F respectively.

Best Time to Visit Cayman Brac
The most sunny months:
March 12 days
July 12 days
February 11 days
The most warm months:
August 91.1 °F
July 90.9 °F
September 90.8 °F
Warmest sea temperature:
September 90.4 °F
August 90.2 °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

Cayman Brac on the Weather Map

Cayman Islands Resorts:
NAME
Cayman Brac +86
George Town +86
Grand Cayman +86
Little Cayman +86
24 Hours Weather Forecast
Cayman Brac
Local time: 00:49
30 may, saturday
0300 86°F
NW
12 mph
0600 86°F
W
11 mph
0900 86°F
NW
9 mph
1200 86°F
N
11 mph
1500 86°F
NW
12 mph
1800 86°F
W
7 mph
2100 86°F
SW
9 mph
31 may, sunday
0000 86°F
W
10 mph