Climate Insights for Barillas

The climate in Barillas is warm and mild. The average annual temperature is 21°C and approximately 2128mm of precipitation falls per year. Barillas receives a notable amount of rainfall throughout the year, including during its driest month. Barillas is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, August. The coldest months are January, February, December, when temperatures can drop to 14°C.

Barillas sees moderate temperature variation throughout the year, ranging from 14°C to 29°C. The warmest month is May, when average highs reach 29°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 14°C and an average of 18°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 2°C shift in average temperatures.

Barillas is a very wet location, receiving approximately 2128mm of precipitation annually, which averages out to around 177mm per month. The wettest month is June, averaging 462mm of rainfall. September and October also tend to see above-average precipitation. The driest month is April, with just 49mm. That's 414mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Barillas is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Barillas, which began on June 21, 2026. Barillas is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in May at around 29°C, while the coldest stretch bottoms out in January near 14°C. Autumn is next, beginning on September 23, 2026 — 91 days from now.

The best time to visit Barillas is during February, March and April, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 69mm per month. By contrast, May can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to 14°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Barillas based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.