Retalhuleu monthly weather averages

Average daytime temperature

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

Retalhuleu average temperature chart (Celsius) Retalhuleu average temperature chart (Fahrenheit)
Average monthly temperatures in Retalhuleu (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 30.9 31.8 32.3 32.4 31.6 31.1 31 31.1 30.5 30.3 30.8 30.8
°F 87.6 89.3 90.2 90.3 89 87.9 87.9 88 86.9 86.5 87.4 87.4

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.

Retalhuleu monthly rainfall chart (mm) Retalhuleu monthly rainfall chart (inches)
Average monthly rainfall in Retalhuleu (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 20 23 66 169 417 571 448 477 641 582 156 58
inches 0.8 0.9 2.6 6.7 16.4 22.5 17.6 18.8 25.2 22.9 6.1 2.3
Rainy days 2 2 3 7 15 21 20 20 22 19 6 3

Average annual rainfall in Retalhuleu: 3549.833mm (1397.6 inches)

Average daily sunshine

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

Retalhuleu average daily sunshine chart
Average daily sunshine Retalhuleu
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.3 8.7 9.2 8.5 8.5 7.8 7.1 7.1 6.7 6.4 6.8 7.9

Day / night temperatures

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

Retalhuleu average minimum / maximum temperatures (Celsius) Retalhuleu average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Retalhuleu (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.4 18.1 19.4 20.7 21.3 21.1 20.5 20.5 20.5 20.1 19.4 17.7
Max °C 31.2 32.2 32.7 32.7 31.9 31.3 31.3 31.4 30.8 30.6 31.1 31.1
Min °F 63.3 64.5 66.8 69.3 70.3 70 68.9 68.8 68.8 68.1 66.8 63.9
Max °F 75.7 77.2 78.8 80.1 79.9 79.2 78.6 78.6 78.1 77.5 77.4 75.9

Sea temperature

The graph below shows the average sea temperature.

Retalhuleu average sea temperature chart (Celsius) Retalhuleu average sea temperature chart (Fahrenheit)
Average sea temperature around Retalhuleu in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 28.1 28 28.6 29.6 30.1 29.8 29.7 29.9 29.5 29.2 29.1 28.7
°F 82.5 82.5 83.4 85.3 86.1 85.6 85.5 85.7 85.1 84.5 84.4 83.7

Wind speed

The graph below shows the average wind speed.

Retalhuleu average winspeed by month (km/h) Retalhuleu average winspeed by month (mph)
Average wind speed in Retalhuleu (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 10 11 10 9 9 8 9 8 8 9 10 10
mph 6 7 6 5 6 5 5 5 5 6 7 7

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.

Retalhuleu relative humidity averages
Average relative humidity in Retalhuleu
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 69% 68% 73% 75% 80% 82% 81% 82% 83% 81% 74%

Other monthly averages

UV index Best time to go?

Retalhuleu weather stats

Retalhuleu weather statistics
Hottest month: April 32.4°C 90.3°F
Driest month: January 20mm 0.8ins
Sunniest month: March 9.2hrs
Coldest month: January 30.9°C 87.6°F
Wettest month: September 641mm 25.2ins
Warmest sea: May 30.1°C 86.2°F
Map showing location of Retalhuleu (14.53333, -91.68333) Retalhuleu map pin © Google

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