Measurements:
°C
°F
Chetumal
80°F
W 4 mph
Feels like: 86°F
Precip: 0%
World Resorts Mexico Chetumal Weather

Chetumal Sea Water Temperature

Current Sea Water Temperature:
+84.4°F
Maximum Sea Water Temperature in December: 86.6°F
Minimum Sea Water Temperature in December: 78.8°F
Average water temperature in December: 82.9°F

Sea Water Temperature for the Last 10 Days:

December 04 84.4°F November 29 84.8°F
December 03 83.6°F November 28 85.2°F
December 02 83.2°F November 27 85.6°F
December 01 83.2°F November 26 85.4°F
November 30 83.6°F November 25 84.8°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 83.4 °F
December 84.9 °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
March 9 mph

Chetumal on the Weather Map

24 Hours Weather Forecast
Chetumal
Local time: 01:38
05 dec, friday
0300 80°F
W
4 mph
0600 78°F
SW
4 mph
0900 80°F
SW
5 mph
1200 90°F
W
7 mph
1500 90°F
NW
6 mph
1800 84°F
W
7 mph
2100 82°F
W
6 mph
06 dec, saturday
0000 80°F
W
6 mph