Measurements:
°C
°F
Cayo Santa Maria
70°F
S 14 mph
Feels like: 70°F
Precip: 65%
World Resorts Cuba Cayo Santa Maria Weather

Cayo Santa Maria Sea Water Temperature

Current Sea Water Temperature:
+82.6°F
Maximum Sea Water Temperature in January: 84.0°F
Minimum Sea Water Temperature in January: 77.2°F
Average water temperature in January: 80.9°F

Sea Water Temperature for the Last 10 Days:

January 29 82.6°F January 24 80.2°F
January 28 83.0°F January 23 79.8°F
January 27 82.4°F January 22 80.0°F
January 26 81.8°F January 21 81.0°F
January 25 80.6°F January 20 81.0°F

When is the Warmest Sea for Cayo Santa Maria?

According to our data for the last three years for Cayo Santa Maria the highest average sea water temperature was in September, August and July.

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Cayo Santa Maria was 91.2°F. The maximum and minimum values were 90.4°F and 92.4°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Cayo Santa Maria was 90.9°F. The maximum and minimum values were 89.6°F and 93.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Cayo Santa Maria was 89.0°F. The maximum and minimum values were 87.4°F and 90.0°F respectively.

Best Time to Visit Cayo Santa Maria
The most sunny months:
April 14 days
May 12 days
March 12 days
The most warm months:
August 90.7 °F
July 90.3 °F
September 89.8 °F
Warmest sea temperature:
September 89.8 °F
August 89.7 °F
July 89.0 °F
The most cold months:
January 79.2 °F
February 80.1 °F
March 80.7 °F
The most rainy months:
May 7 days
October 7 days
September 6 days
The most windy months:
March 15 mph
February 14 mph
November 14 mph

Cayo Santa Maria on the Weather Map

24 Hours Weather Forecast
Cayo Santa Maria
Local time: 03:37
29 jan, thursday
0600 72°F
S
15 mph
0900 74°F
SW
13 mph
1200 74°F
SW
15 mph
1500 76°F
W
17 mph
1800 76°F
W
20 mph
2100 76°F
W
21 mph
30 jan, friday
0000 76°F
W
19 mph
0300 76°F
W
13 mph