World sea water temperatures

Water temperature in Chetumal (QR) in September

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Is it warm enough to swim in Chetumal in September? Average water temperature in Chetumal in September is 86°F and therefore suitable for comfortable swimming. The warmest sea in Chetumal in September is 89.4°F, and the coldest is 83.7°F. Average high air temperature in Chetumal in September is 91°F, and average low temperature is 75°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Chetumal

Changes water temperature in Chetumal in September 2025, 2024

To get an accurate forecast for the water temperature in Chetumal for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Chetumal, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
September 187.1°F87.4°F83.7°F88.7°F
September 287.6°F87.3°F83.8°F87.8°F
September 388°F87.4°F84°F88°F
September 488.3°F87.3°F84.4°F88.3°F
September 588.3°F87.1°F84.6°F88.3°F
September 6 87.1°F84.2°F87.3°F
September 7 86.5°F84°F87.1°F
September 8 87.3°F84°F87.3°F
September 9 87.1°F84°F87.1°F
September 10 88°F84.2°F88°F
September 11 87.6°F84.2°F88°F
September 12 87.8°F84.2°F88.2°F
September 13 87.6°F84.2°F88°F
September 14 88.5°F84.2°F88.5°F
September 15 88.3°F84.4°F88.3°F
Day 2025 2024 Min Max
September 16 88.3°F84.2°F88.3°F
September 17 89.4°F84°F89.4°F
September 18 88.9°F84.2°F88.9°F
September 19 88.7°F83.8°F88.7°F
September 20 88.9°F84.2°F88.9°F
September 21 88.3°F84.7°F88.3°F
September 22 88.5°F84.6°F88.5°F
September 23 89.2°F84.7°F89.2°F
September 24 88.2°F84.7°F88.5°F
September 25 87.4°F84.6°F88.5°F
September 26 86.4°F84.6°F88.7°F
September 27 86.4°F84.4°F88.3°F
September 28 86.5°F84.4°F88.2°F
September 29 88°F83.8°F88°F
September 30 87.3°F84.4°F87.4°F
Chetumal water temp chart in September

Average water temperature in Chetumal in September over a decade

20152016201720182019
86°F86.2°F86.5°F86°F87.1°F
20202021202220232024
87.4°F85.6°F85.8°F87.6°F87.8°F

Chetumal sea state in September

Chart comparing the height of waves in Chetumal in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Chetumal in September

Weather and climate in Chetumal in September

This data display average monthly climate indicators in Chetumal in September based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature91°F
  • Average LOW temperature75°F
  • Average humidity
    79
  • Average rainfall days16 days
  • Average rainfall206mm/8.1''
  • Average daylight12h
  • Average sunshine6.8h
  • Average UV index12

Chetumal water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in September?

Want to know where the water temperature in September is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Calderitas86°F83.8°F88.9°F
Corozal Town85.8°F83.7°F88.7°F
Xcalak85.5°F83.3°F88°F
Costa Maya85.3°F83.5°F87.6°F
Mahahual85.3°F83.5°F87.6°F
San Pedro85.6°F83.5°F88.3°F
Ambergris Caye85.5°F83.3°F88°F
Caye Caulker85.6°F83.7°F88.5°F
Banco Chinchorro85.5°F83.3°F88.2°F
Turneffe Islands85.5°F83.5°F88.2°F

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  • Vagues au lever du soleil
  • Northern most point of the hotel zone Cancun. Sargassum is thick, waves are very high and dangerous.
  • Lever du soleil

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Chetumal is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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