Measurements:
°C
°F
CURRENT WEATHER
03:32
Grand Cayman
82°F
SW 25 mph
Feels like: 88°F
Precip: 0%
World Resorts Cayman Islands Grand Cayman Weather

7 Day Weather Forecast

03.30
mon
DAY
84°F
W 21 mph
precip
0%
NIGHT
82°F
W 16 mph
precip
0%
03.31
tue
DAY
82°F
W 19 mph
precip
0%
NIGHT
82°F
W 16 mph
precip
0%
04.01
wed
DAY
86°F
W 17 mph
precip
0%
NIGHT
82°F
W 17 mph
precip
0%
04.02
thu
DAY
82°F
W 14 mph
precip
100%
NIGHT
82°F
W 19 mph
precip
0%
04.03
fri
DAY
82°F
W 11 mph
precip
100%
NIGHT
82°F
W 15 mph
precip
100%
04.04
sat
DAY
82°F
NW 9 mph
precip
100%
NIGHT
82°F
W 8 mph
precip
51%
04.05
sun
DAY
82°F
W 8 mph
precip
0%
NIGHT
82°F
W 6 mph
precip
0%

Grand Cayman Sea Water Temperature in March, °F

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Grand Cayman was 27.0°F. The maximum and minimum values were 26.6°F and 27.5°F respectively.

Grand Cayman on the Weather Map

Best Time to Visit Grand Cayman
The most sunny months:
July 11 days
May 10 days
March 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