Average sea water temperature in July:
+85.3°F
| Minimum sea water temperature in July: | 89.2°F |
| Maximum sea water temperature in July: | 82.4°F |
Daily sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 86.4°F. The highest and lowest sea temperatures during the month were 87.6°F and 85.6°F.
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| Cayo Guillermo |
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| Cayo Guillermo |
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| Cayo Guillermo |
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| Cayo Guillermo |
Monthly sea water temperature in Cayo Guillermo, °F
Which Cuba resorts have warmest sea in July?
| Place name | July 2026 | July 2025 |
|---|---|---|
| Pinar del Rio | 88.1°F | 87.4°F |
| Cayo Largo | 88.0°F | 87.1°F |
| Niquero | 87.5°F | 86.8°F |
| Manzanillo | 87.3°F | 86.6°F |
| Cienfuegos | 86.9°F | 86.3°F |
| Trinidad | 86.8°F | 86.0°F |
| Varadero | 86.6°F | 85.7°F |
| Cayo Guillermo | 86.4°F | 85.3°F |
| Santiago de Cuba | 86.2°F | 85.4°F |
| Cayo Coco | 86.2°F | 85.4°F |
| Cayo Santa Maria | 86.2°F | 85.1°F |
| Santa Maria | 86.1°F | 85.1°F |
| Havana | 85.4°F | 84.8°F |
| Matanzas | 85.4°F | 84.4°F |
| Playa Santa Lucia | 84.1°F | 83.9°F |
| Baracoa | 83.9°F | 83.2°F |
| Playa Esmeralda | 83.4°F | 83.4°F |
| Playa Blanca | 83.3°F | 83.5°F |
| Holguin | 83.1°F | 83.5°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: 11:00
August 04, tuesday
1200
86°F
NW
13 mph
13 mph
1500
86°F
W
15 mph
15 mph
1800
86°F
W
19 mph
19 mph
2100
86°F
W
18 mph
18 mph
August 05, wednesday
0000
84°F
W
20 mph
20 mph
0300
84°F
W
14 mph
14 mph
0600
82°F
W
14 mph
14 mph
0900
84°F
NW
19 mph
19 mph
