25.06
thu
thu
Day
84°F
W 16 mph
Precip.
16%
16%
Night
84°F
W 19 mph
Precip.
18%
18%
26.06
fri
fri
Day
84°F
W 19 mph
Precip.
19%
19%
Night
84°F
W 19 mph
Precip.
21%
21%
27.06
sat
sat
Day
84°F
W 16 mph
Precip.
9%
9%
Night
84°F
W 19 mph
Precip.
15%
15%
28.06
sun
sun
Day
84°F
W 16 mph
Precip.
16%
16%
Night
84°F
W 17 mph
Precip.
15%
15%
29.06
mon
mon
Day
84°F
W 12 mph
Precip.
5%
5%
Night
84°F
W 14 mph
Precip.
8%
8%
30.06
tue
tue
Day
82°F
W 9 mph
Precip.
12%
12%
Night
84°F
W 14 mph
Precip.
8%
8%
01.07
wed
wed
Day
84°F
W 9 mph
Precip.
15%
15%
Night
84°F
W 14 mph
Precip.
13%
13%
sea water
temperature
temperature
| Cayo Guillermo |
monthly
weather
weather
| Cayo Guillermo |
current
weather
weather
| Cayo Guillermo |
14 days
forecast
forecast
| Cayo Guillermo |
Sea water temperature in June, °F
Show year:
2026
2025
2024
The average sea water temperature in June of 2026 was 85.9°F. The highest and lowest sea temperatures during the month were 86.9°F and 84.0°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 85.3°F. The highest and lowest sea temperatures during the month were 86.2°F and 83.8°F.
Air temperature in Cayo Guillermo, °F
Precipitation total in Cayo Guillermo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Cayo Guillermo
Cayo Guillermo on a weather map
Places in Cuba:
Name
°F
24 Hours Forecast
Cayo Guillermo
Local time: 02:43
June 25, thursday
0300
82°F
W
17 mph
17 mph
0600
82°F
W
18 mph
18 mph
0900
84°F
W
17 mph
17 mph
1200
84°F
W
16 mph
16 mph
1500
84°F
W
17 mph
17 mph
1800
84°F
W
17 mph
17 mph
2100
84°F
W
20 mph
20 mph
June 26, friday
0000
84°F
W
19 mph
19 mph
