Retalhuleu Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Retalhuleu.
Climate overview of Retalhuleu
The climate in Retalhuleu, Guatemala, is remarkably consistent, with temperatures year-round averaging 31°C (88°F). The warmest month is April at 32°C (90°F), and the coolest is October at 30°C (86°F).
The city has a wet climate, receiving around 3003 mm (118 in) of rainfall per year. Despite the high annual total, it has distinct dry (January to February) and wet (May to October) seasons. September is the wettest month. Sunshine peaks in March, when the city sees around 8.3 hours of sunshine per day.
Retalhuleu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Retalhuleu - and find the best time to visit.
Monthly Temperature in Retalhuleu
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 October.
Nighttime temperatures range from 22°C (72°F) in April to 20°C (68°F) in October.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Retalhuleu
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
Sunshine Hours in Retalhuleu
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
Humidity in Retalhuleu by Month
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
Best Time to Visit Retalhuleu
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January and February
- Warmest weather: January, February, March, April and May
- Most sunshine: January, February, March and April
- Fewest rainy days: January, February, March and December
- Wettest months: May, June, July, August, September and October, when rainfall is highest.
- Seasonal pattern: Distinct dry (January to February) and wet (May to October) seasons
Frequently asked questions about the climate in Retalhuleu
What is the best time to visit Retalhuleu?
January and February typically offer the most optimal weather in Retalhuleu. In contrast, May, June, July, August, September and October tend to have less optimal conditions. Retalhuleu has distinct dry (January to February) and wet (May to October) seasons.
What temperatures can I expect in Retalhuleu?
Daytime highs range from 30°C (86°F) in October to 32°C (90°F) in April. Nighttime lows range from 20°C (68°F) to 22°C (72°F). Temperatures stay relatively stable year-round.
How much rain does Retalhuleu get?
Annual rainfall is around 3003 mm (118 in). September is the wettest month with 517 mm (20 in), while February is the driest with 28 mm (1.1 in).
How sunny is Retalhuleu?
Retalhuleu receives around 2,445 hours of sunshine per year. March is the sunniest month with 249 hours, while June is the cloudiest with just 152 hours. Overall, Retalhuleu enjoys abundant sunshine.
Retalhuleu 3-Day Forecast
Retalhuleu on the map
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