Measurements:
°C
°F
San Blas
78°F
NE 2 mph
Feels like: 82°F
Precip: 0%
World Resorts Mexico San Blas Weather

San Blas Sea Water Temperature

Current Sea Water Temperature:
+81.4°F
Maximum Sea Water Temperature in January: 83.2°F
Minimum Sea Water Temperature in January: 72.0°F
Average water temperature in January: 79.1°F

Sea Water Temperature for the Last 10 Days:

January 19 81.4°F January 14 81.0°F
January 18 81.6°F January 13 81.2°F
January 17 81.6°F January 12 81.6°F
January 16 81.6°F January 11 81.8°F
January 15 81.6°F January 10 82.4°F

When is the Warmest Sea for San Blas?

According to our data for the last three years for San Blas the highest average sea water temperature was in August, September and October.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for San Blas was 92.6°F. The maximum and minimum values were 92.0°F and 93.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for San Blas was 92.0°F. The maximum and minimum values were 91.4°F and 92.8°F respectively.

Sea Water Temperature in October

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for San Blas was 91.7°F. The maximum and minimum values were 90.6°F and 92.8°F respectively.

Best Time to Visit San Blas
The most sunny months:
March 28 days
May 27 days
April 26 days
The most warm months:
May 98.7 °F
June 96.9 °F
April 95.5 °F
Warmest sea temperature:
August 91.9 °F
September 91.7 °F
October 91.5 °F
The most cold months:
January 87.3 °F
February 89.3 °F
December 90.8 °F
The most rainy months:
August 7 days
September 5 days
July 5 days
The most windy months:
May 5 mph
June 4 mph
April 4 mph

San Blas on the Weather Map

24 Hours Weather Forecast
San Blas
Local time: 20:54
19 jan, monday
2100 78°F
NE
2 mph
20 jan, tuesday
0000 76°F
NW
2 mph
0300 74°F
W
2 mph
0600 74°F
NW
2 mph
0900 74°F
NW
1 mph
1200 84°F
NE
4 mph
1500 92°F
NE
7 mph
1800 88°F
W
7 mph