Current Sea Water Temperature:
+91.6°F
| Maximum Sea Water Temperature in September: | 94.6°F |
| Minimum Sea Water Temperature in September: | 88.0°F |
| Average water temperature in September: | 90.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 29 | 91.6°F | September 24 | 90.8°F |
| September 28 | 91.0°F | September 23 | 91.2°F |
| September 27 | 91.2°F | September 22 | 91.6°F |
| September 26 | 91.0°F | September 21 | 91.0°F |
| September 25 | 90.6°F | September 20 | 92.0°F |
When is the Warmest Sea for Cayo Largo?
According to our data for the last three years for Cayo Largo the highest average sea water temperature was in August, September and July.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2026 for Cayo Largo was 92.7°F. The maximum and minimum values were 91.2°F and 94.2°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2026 for Cayo Largo was 92.2°F. The maximum and minimum values were 90.6°F and 94.0°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Cayo Largo was 92.2°F. The maximum and minimum values were 89.6°F and 94.8°F respectively.
Cuba Resorts:
NAME
F°
| Cayo Coco | ![]() |
+78 |
| Cayo Guillermo | ![]() |
+88 |
| Cayo Largo | ![]() |
+74 |
| Cayo Santa Maria | ![]() |
+88 |
| Cienfuegos | ![]() |
+76 |
| Havana | ![]() |
+84 |
| Manzanillo | ![]() |
+78 |
| Matanzas | ![]() |
+74 |
| Pinar del Rio | ![]() |
+76 |
| Playa Blanca | ![]() |
+82 |
| Playa Esmeralda | ![]() |
+82 |
| Playa Santa Lucia | ![]() |
+82 |
| Santa Maria | ![]() |
+88 |
| Santiago de Cuba | ![]() |
+78 |
| Varadero | ![]() |
+74 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Cayo Largo
Local time: 02:28
30 sep, wednesday
| 0300 | ![]() |
74°F | W 4 mph |
| 0600 | ![]() |
74°F | W 4 mph |
| 0900 | ![]() |
78°F | W 3 mph |
| 1200 | ![]() |
82°F | S 3 mph |
| 1500 | ![]() |
84°F | W 7 mph |
| 1800 | ![]() |
84°F | SW 7 mph |
| 2100 | ![]() |
78°F | SW 5 mph |
01 oct, thursday
| 0000 | ![]() |
78°F | W 5 mph |






























