World Resorts Cayman Islands Grand Cayman Weather

Grand Cayman Sea Temperature in January

Average sea water temperature in January:
+81.0°F
Minimum sea water temperature in January: 82.9°F
Maximum sea water temperature in January: 77.7°F

Daily sea water temperature in January, °F

Show year:
2025
2024
2023
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76
78
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82
84
86
88

The average sea water temperature in January of 2025 was 81.5°F. The highest and lowest sea temperatures during the month were 82.8°F and 80.8°F.

Monthly sea water temperature in Grand Cayman, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
82.4
83.9
85.5
86
85.8
84.9
83.8
83.1
81.7
80.8
80.5
81

Which Cayman Islands resorts have warmest sea in January?

Place name January 2025 January 2024
George Town 81.6°F 81.9°F
Grand Cayman 81.5°F 82.0°F
Little Cayman 81.2°F 81.8°F
Cayman Brac 81.1°F 81.6°F

Best time for vacation in Grand Cayman

Sunniest months:
March 11 days
July 11 days
May 10 days
Warmest months:
August 87.1 °F
July 87.1 °F
September 86.9 °F
Warmest sea temp:
September 86.0 °F
August 85.8 °F
October 85.5 °F
Coldest months:
January 80.1 °F
February 80.5 °F
March 80.9 °F
Rainiest months:
October 8 days
May 5 days
November 5 days
Windiest months:
December 16.9 mph
November 16.1 mph
January 15.7 mph

Grand Cayman on a weather map

Leaflet | Tiles © Esri
Places in Cayman Islands:
Name
°F
Grand Cayman
+79°F
George Town
+79°F
Cayman Brac
+79°F
Little Cayman
+79°F
24 Hours Forecast
Grand Cayman
Local time: 08:33
April 29, tuesday
0900
79°F
W
21 mph
1200
84°F
SW
21 mph
1500
82°F
SW
21 mph
1800
81°F
SW
17 mph
2100
79°F
W
15 mph
April 30, wednesday
0000
79°F
SW
18 mph
0300
79°F
SW
24 mph
0600
79°F
SW
21 mph
Units of measurement: °C / °F