Measurements:
°C
°F
Chetumal
84°F
W 11 mph
Feels like: 92°F
Precip: 84%
World Resorts Mexico Chetumal Weather

Chetumal Sea Water Temperature

Current Sea Water Temperature:
+88.4°F
Maximum Sea Water Temperature in May: 91.6°F
Minimum Sea Water Temperature in May: 85.4°F
Average water temperature in May: 88.4°F

Sea Water Temperature for the Last 10 Days:

May 30 88.4°F May 25 90.0°F
May 29 89.4°F May 24 89.8°F
May 28 89.2°F May 23 90.0°F
May 27 90.0°F May 22 89.4°F
May 26 89.8°F May 21 89.4°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: 22:34
31 may, sunday
0000 84°F
W
11 mph
0300 82°F
W
11 mph
0600 82°F
W
11 mph
0900 86°F
W
12 mph
1200 86°F
NW
13 mph
1500 84°F
NW
12 mph
1800 82°F
W
11 mph
2100 82°F
W
9 mph