Climate Insights for Arroyo de Banco

The climate in Arroyo de Banco is warm and mild. The average annual temperature is 25°C and approximately 2346mm of precipitation falls per year. Arroyo de Banco receives a notable amount of rainfall throughout the year, including during its driest month. Arroyo de Banco is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, June. The coldest months are January, December, February, when temperatures can drop to 17°C.

Arroyo de Banco sees moderate temperature variation throughout the year, ranging from 17°C to 33°C. The warmest month is May, when average highs reach 33°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 17°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between March and April, with a 2°C shift in average temperatures.

Arroyo de Banco is a very wet location, receiving approximately 2346mm of precipitation annually, which averages out to around 195mm per month. The wettest month is September, averaging 457mm of rainfall. August and October also tend to see above-average precipitation. The driest month is February, with just 68mm. That's 390mm less than September, 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.

Arroyo de Banco 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 April, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, 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 Arroyo de Banco, which began on June 21, 2026. Arroyo de Banco 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 33°C, while the coldest stretch bottoms out in January near 17°C. Autumn is next, beginning on September 23, 2026 — 89 days from now.

The best time to visit Arroyo de Banco is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 81mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 33°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Arroyo de Banco 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.