Climate Overview
The climate in Arroyo de Banco is warm and mild. The average annual temperature is 20°C and approximately 2611mm 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, February, December, when temperatures can drop to 12°C.
Temperature
Arroyo de Banco sees moderate temperature variation throughout the year, ranging from 12°C to 26°C. The warmest month is May, when average highs reach 26°C and the mean temperature sits around 22°C. January is the coolest month, with minimum temperatures around 12°C and an average of 16°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Arroyo de Banco is a very wet location, receiving approximately 2611mm of precipitation annually, which averages out to around 218mm per month. The wettest month is September, averaging 434mm of rainfall. October and June also tend to see above-average precipitation. The driest month is February, with just 89mm. That's 344mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Arroyo de Banco is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Arroyo de Banco, which began on March 20, 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 26°C, while the coldest stretch bottoms out in January near 12°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 15 to 26°C. Rainfall is heavy, totalling around 360mm across the season with a monthly average of 120mm. Winds are generally light, averaging 8km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 18 to 26°C. Rainfall is heavy, totalling around 865mm across the season with a monthly average of 288mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 15 to 25°C. Rainfall is heavy, totalling around 1013mm across the season with a monthly average of 338mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 12 to 22°C. Rainfall is heavy, totalling around 374mm across the season with a monthly average of 125mm. Winds are generally light, averaging 7km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Arroyo de Banco is during February, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 89mm per month. By contrast, May can be uncomfortably hot with highs reaching 26°C, while January is the coldest period with lows dropping to 12°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.
Monthly Climate Data
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.
