Measurements:
°C
°F
Chetumal
84°F
W 10 mph
Feels like: 90°F
Precip: 0%
World Resorts Mexico Chetumal Weather

Chetumal Sea Water Temperature

Current Sea Water Temperature:
+83.4°F
Maximum Sea Water Temperature in March: 88.6°F
Minimum Sea Water Temperature in March: 80.0°F
Average water temperature in March: 84.1°F

Sea Water Temperature for the Last 10 Days:

March 31 83.4°F March 26 82.8°F
March 30 84.0°F March 25 82.8°F
March 29 83.2°F March 24 83.0°F
March 28 83.2°F March 23 82.4°F
March 27 82.6°F March 22 82.2°F

When is the Warmest Sea for Chetumal?

According to our data for the last three years for Chetumal 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 Chetumal was 90.8°F. The maximum and minimum values were 89.2°F and 92.6°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Chetumal was 91.1°F. The maximum and minimum values were 89.6°F and 92.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Chetumal was 89.9°F. The maximum and minimum values were 88.0°F and 91.8°F respectively.

Best Time to Visit Chetumal
The most sunny months:
April 11 days
March 10 days
July 9 days
The most warm months:
July 92.9 °F
August 92.8 °F
May 92.5 °F
Warmest sea temperature:
September 90.2 °F
August 90.1 °F
July 89.3 °F
The most cold months:
January 83.5 °F
December 85.1 °F
February 85.8 °F
The most rainy months:
October 8 days
June 8 days
September 8 days
The most windy months:
May 9 mph
April 9 mph
June 9 mph

Chetumal on the Weather Map

24 Hours Weather Forecast
Chetumal
Local time: 12:13
31 mar, tuesday
1500 86°F
W
12 mph
1800 82°F
W
11 mph
2100 82°F
W
9 mph
01 apr, wednesday
0000 80°F
W
8 mph
0300 80°F
W
8 mph
0600 80°F
W
7 mph
0900 82°F
W
9 mph
1200 86°F
W
9 mph