Measurements:
°C
°F
Chetumal
92°F
NW 11 mph
Feels like: 100°F
Precip: 42%
World Resorts Mexico Chetumal Weather

Chetumal Sea Water Temperature

Current Sea Water Temperature:
+90.4°F
Maximum Sea Water Temperature in July: 91.8°F
Minimum Sea Water Temperature in July: 86.4°F
Average water temperature in July: 89.4°F

Sea Water Temperature for the Last 10 Days:

July 10 90.4°F July 05 91.0°F
July 09 90.2°F July 04 90.4°F
July 08 90.6°F July 03 90.2°F
July 07 91.2°F July 02 90.0°F
July 06 91.2°F July 01 89.8°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 83.5 °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
June 9 mph
April 9 mph

Chetumal on the Weather Map

24 Hours Weather Forecast
Chetumal
Local time: 11:38
10 jul, friday
1200 92°F
NW
11 mph
1500 92°F
NW
11 mph
1800 90°F
W
9 mph
2100 84°F
W
11 mph
11 jul, saturday
0000 84°F
W
9 mph
0300 84°F
W
10 mph
0600 82°F
W
10 mph
0900 86°F
W
12 mph