15.01
thu
thu
Day

77°F
E 9 mph
Precip.
0%
0%
Night

77°F
S 15 mph
Precip.
0%
0%
16.01
fri
fri
Day

79°F
SW 21 mph
Precip.
0%
0%
Night

79°F
SW 19 mph
Precip.
0%
0%
17.01
sat
sat
Day

79°F
SW 17 mph
Precip.
100%
100%
Night

79°F
SW 11 mph
Precip.
0%
0%
18.01
sun
sun
Day

79°F
S 11 mph
Precip.
100%
100%
Night

79°F
S 22 mph
Precip.
0%
0%
19.01
mon
mon
Day

75°F
SW 24 mph
Precip.
100%
100%
Night

75°F
SW 21 mph
Precip.
78%
78%
20.01
tue
tue
Day

77°F
SW 22 mph
Precip.
100%
100%
Night

77°F
SW 29 mph
Precip.
100%
100%
21.01
wed
wed
Day

77°F
SW 29 mph
Precip.
100%
100%
Night

79°F
SW 27 mph
Precip.
100%
100%
22.01
thu
thu
Day

79°F
W 17 mph
Precip.
100%
100%
Night

79°F
SW 17 mph
Precip.
43%
43%
23.01
fri
fri
Day

79°F
W 17 mph
Precip.
100%
100%
Night

79°F
W 14 mph
Precip.
20%
20%
24.01
sat
sat
Day

79°F
W 10 mph
Precip.
77%
77%
Night

79°F
W 8 mph
Precip.
24%
24%
25.01
sun
sun
Day

79°F
SW 7 mph
Precip.
100%
100%
Night

79°F
S 11 mph
Precip.
0%
0%
26.01
mon
mon
Day

79°F
SW 14 mph
Precip.
100%
100%
Night

79°F
SW 16 mph
Precip.
100%
100%
27.01
tue
tue
Day

79°F
W 21 mph
Precip.
85%
85%
Night

79°F
W 19 mph
Precip.
49%
49%
28.01
wed
wed
Day

79°F
W 16 mph
Precip.
100%
100%
Night

79°F
W 13 mph
Precip.
100%
100%
sea water
temperature
temperature
| Grand Cayman |
monthly
weather
weather
| Grand Cayman |
current
weather
weather
| Grand Cayman |
7 days
forecast
forecast
| Grand Cayman |
Sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 81.5°F. The highest and lowest sea temperatures during the month were 82.0°F and 81.1°F.
Air temperature in Grand Cayman, °F
Precipitation total in Grand Cayman, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Grand Cayman
Grand Cayman on a weather map
Places in Cayman Islands:
Name
°F
24 Hours Forecast
Grand Cayman
Local time: 14:13
January 15, thursday
1500

79°F
SE
14 mph
14 mph
1800

79°F
SE
17 mph
17 mph
2100

77°F
S
14 mph
14 mph
January 16, friday
0000

77°F
S
15 mph
15 mph
0300

77°F
S
19 mph
19 mph
0600

75°F
SW
24 mph
24 mph
0900

75°F
SW
23 mph
23 mph
1200

79°F
SW
21 mph
21 mph

























