Measurements:
°C
°F
CURRENT WEATHER
21:33
Grand Cayman
82°F
W 12 mph
Feels like: 86°F
Precip: 0%
World Resorts Cayman Islands Grand Cayman Weather

7 Day Weather Forecast

03.09
mon
DAY
86°F
SW 13 mph
precip
0%
NIGHT
80°F
W 11 mph
precip
0%
03.10
tue
DAY
86°F
W 13 mph
precip
0%
NIGHT
82°F
W 11 mph
precip
0%
03.11
wed
DAY
86°F
NW 13 mph
precip
0%
NIGHT
82°F
W 7 mph
precip
0%
03.12
thu
DAY
80°F
W 6 mph
precip
0%
NIGHT
82°F
S 2 mph
precip
0%
03.13
fri
DAY
82°F
SW 7 mph
precip
0%
NIGHT
82°F
SW 4 mph
precip
0%
03.14
sat
DAY
82°F
W 7 mph
precip
0%
NIGHT
82°F
W 7 mph
precip
100%
03.15
sun
DAY
82°F
W 12 mph
precip
25%
NIGHT
82°F
NW 8 mph
precip
0%

Grand Cayman Sea Water Temperature in March, °F

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Grand Cayman was 27.6°F. The maximum and minimum values were 27.4°F and 28.0°F respectively.

Grand Cayman on the Weather Map

Best Time to Visit Grand Cayman
The most sunny months:
March 11 days
July 11 days
May 10 days
The most warm months:
August 91.3 °F
July 91.1 °F
September 91.0 °F
Warmest sea temperature:
September 90.1 °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