Average sea water temperature in August:
+85.9°F
| Minimum sea water temperature in August: | 89.4°F |
| Maximum sea water temperature in August: | 83.1°F |
Daily sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 86.8°F. The highest and lowest sea temperatures during the month were 87.8°F and 85.5°F.
sea water
temperature
temperature
| Cayo Guillermo |
monthly
weather
weather
| Cayo Guillermo |
current
weather
weather
| Cayo Guillermo |
14 days
forecast
forecast
| Cayo Guillermo |
Monthly sea water temperature in Cayo Guillermo, °F
Which Cuba resorts have warmest sea in August?
| Place name | August 2026 | August 2025 |
|---|---|---|
| Cayo Largo | 88.4°F | 88.5°F |
| Niquero | 88.2°F | 87.6°F |
| Pinar del Rio | 88.1°F | 88.5°F |
| Manzanillo | 87.6°F | 87.2°F |
| Cienfuegos | 87.4°F | 87.2°F |
| Trinidad | 87.2°F | 87.2°F |
| Varadero | 86.9°F | 87.4°F |
| Cayo Guillermo | 86.8°F | 86.9°F |
| Cayo Coco | 86.8°F | 87.0°F |
| Cayo Santa Maria | 86.7°F | 86.9°F |
| Santa Maria | 86.7°F | 86.8°F |
| Santiago de Cuba | 86.6°F | 86.3°F |
| Havana | 86.2°F | 85.8°F |
| Matanzas | 85.6°F | 85.9°F |
| Playa Santa Lucia | 85.0°F | 85.4°F |
| Playa Esmeralda | 84.6°F | 84.6°F |
| Holguin | 84.6°F | 84.8°F |
| Playa Blanca | 84.5°F | 84.7°F |
| Baracoa | 84.5°F | 84.5°F |
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: 19:01
September 13, sunday
2100
84°F
W
14 mph
14 mph
September 14, monday
0000
84°F
W
13 mph
13 mph
0300
84°F
W
14 mph
14 mph
0600
84°F
W
13 mph
13 mph
0900
84°F
W
14 mph
14 mph
1200
84°F
W
11 mph
11 mph
1500
86°F
SW
14 mph
14 mph
1800
84°F
SW
15 mph
15 mph
