Chetumal monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Chetumal

Chetumal average temperature chart (Celsius) Chetumal average temperature chart (Fahrenheit)
Average monthly temperatures in Chetumal (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.9 28.9 29.6 31.1 31.7 31.1 31.2 31.5 31.1 29.9 28.4 27.5
°F 82.2 83.9 85.3 87.9 89.1 88 88.1 88.6 87.9 85.9 83 81.4

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Chetumal monthly rainfall chart (mm) Chetumal monthly rainfall chart (inches)
Average monthly rainfall in Chetumal (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 75 39 27 42 111 214 166 148 214 177 110 93
inches 2.9 1.6 1.1 1.6 4.4 8.4 6.5 5.8 8.4 7 4.3 3.7
Rainy days 8 5 3 3 6 13 14 13 14 14 9 9

Average annual rainfall in Chetumal: 1346.5998266mm (530.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Chetumal

Chetumal average daily sunshine chart
Average daily sunshine Chetumal
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.7 7.6 8.2 8.7 8.4 6.9 7.6 7.6 6.4 6.6 6.7 6.4

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Chetumal average minimum / maximum temperatures (Celsius) Chetumal average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Chetumal (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 18.5 19 20.4 21.6 22.8 23.3 23 22.6 22.8 21.4 19.5 18.2
Max °C 28.1 29.1 29.9 31.3 31.9 31.3 31.4 31.7 31.3 30.2 28.6 27.7
Min °F 65.3 66.2 68.7 70.9 73.1 73.9 73.5 72.7 73 70.4 67 64.7
Max °F 73.9 75.3 77.2 79.6 81.3 81.1 81 80.8 80.6 78.4 75.2 73.3

Sea temperature

The graph below shows the average sea temperature.

Chetumal average sea temperature chart (Celsius) Chetumal average sea temperature chart (Fahrenheit)
Average sea temperature around Chetumal in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 26.8 26.7 26.9 27.6 28.3 28.8 28.8 29.1 29.4 29.1 28.3 27.4
°F 80.3 80 80.4 81.6 82.9 83.8 83.9 84.5 84.9 84.4 82.9 81.3

Wind speed

The graph below shows the average wind speed.

Chetumal average winspeed by month (km/h) Chetumal average winspeed by month (mph)
Average wind speed in Chetumal (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 10 12 14 15 14 14 13 10 10 10 10 10
mph 6 7 9 9 9 9 8 7 6 6 6 6

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Chetumal relative humidity averages
Average relative humidity in Chetumal
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
80% 78% 75% 75% 74% 79% 79% 80% 82% 82% 82% 82%

Other monthly averages

UV index Best time to go?

Chetumal weather stats

Chetumal weather statistics
Hottest month: May 31.7°C 89.1°F
Driest month: March 27mm 1.1ins
Sunniest month: April 8.7hrs
Coldest month: December 27.5°C 81.5°F
Wettest month: September 214mm 8.4ins
Warmest sea: September 29.4°C 84.9°F
Map showing location of Chetumal (18.5, -88.3) Chetumal map pin © Google

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