Measurements:
°C
°F
Chetumal
78°F
SW 12 mph
Feels like: 82°F
Precip: 0%
World Resorts Mexico Chetumal Weather

Chetumal Sea Water Temperature

Current Sea Water Temperature:
+79.6°F
Maximum Sea Water Temperature in January: 86.0°F
Minimum Sea Water Temperature in January: 77.8°F
Average water temperature in January: 81.6°F

Sea Water Temperature for the Last 10 Days:

January 19 79.6°F January 14 81.6°F
January 18 79.6°F January 13 82.4°F
January 17 80.8°F January 12 82.8°F
January 16 81.2°F January 11 81.4°F
January 15 81.8°F January 10 81.8°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 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
March 9 mph

Chetumal on the Weather Map

24 Hours Weather Forecast
Chetumal
Local time: 20:58
19 jan, monday
2100 78°F
SW
12 mph
20 jan, tuesday
0000 74°F
SW
11 mph
0300 70°F
S
9 mph
0600 68°F
S
9 mph
0900 70°F
S
11 mph
1200 80°F
S
11 mph
1500 82°F
SW
13 mph
1800 80°F
SW
11 mph