Retalhuleu Weather & Climate: Best Time to Visit

In Retalhuleu temperatures are generally consistent throughout the year. On average, daytime temperatures range from a very warm 32°C (90°F) in April to a comfortable 30°C (86°F) in January.

Nighttime temperatures range from 22°C (72°F) in April to 20°C (68°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Retalhuleu experiences significant rainfall throughout the year, averaging 3003 mm (118 in) of precipitation annually. The seasons in Retalhuleu bring significant changes in precipitation. The wettest month, September, receives heavy rainfall, with an average of 517 mm (20 in) of precipitation. This rainfall is distributed across 21 rainy days.

In contrast, the driest month, February, experiences much less rainfall, totaling 28 mm (1.1 in) over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Retalhuleu Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Retalhuleu enjoys sunny spells year-round. March sees up to 8.3 hours of daily sunshine, perfect for a sunny trip. June, the least sunny month, still offers a generous 5.1 hours of sun despite this cloudier time of the year.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Retalhuleu.

The city experiences its highest humidity in May, reaching 81%. In February, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year