Climate Overview
The climate in San Nicolás is warm and mild. The average annual temperature is 23°C and approximately 1933mm of precipitation falls per year. San Nicolás receives a notable amount of rainfall throughout the year, including during its driest month. San Nicolás 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 17°C.
Temperature
San Nicolás sees moderate temperature variation throughout the year, ranging from 17°C to 31°C. The warmest month is May, when average highs reach 31°C and the mean temperature sits around 25°C. January is the coolest month, with minimum temperatures around 17°C and an average of 20°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.
Precipitation
San Nicolás is a fairly wet location, receiving approximately 1933mm of precipitation annually, which averages out to around 161mm per month. The wettest month is June, averaging 256mm of rainfall. September and October also tend to see above-average precipitation. The driest month is February, with just 61mm. That's 195mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
San Nicolás is relatively calm, with an average annual wind speed of 8km/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 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, 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 2km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in San Nicolás, which began on March 20, 2026. San Nicolás 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 31°C, while the coldest stretch bottoms out in January near 17°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 18 to 31°C. Precipitation is moderate at around 287mm for the season, averaging 96mm per month. Winds are generally light, averaging 9km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 20 to 30°C. Rainfall is heavy, totalling around 652mm across the season with a monthly average of 217mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 19 to 29°C. Rainfall is heavy, totalling around 716mm across the season with a monthly average of 239mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 17 to 26°C. Precipitation is moderate at around 278mm for the season, averaging 93mm per month. Winds are generally light, averaging 8km/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 San Nicolás is during January, February, March and April, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 74mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 31°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 San Nicolás 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.
