Climate Overview
The climate in San Cristóbal is warm and mild. The average annual temperature is 21°C and approximately 970mm of precipitation falls per year. San Cristóbal receives a notable amount of rainfall throughout the year, including during its driest month. San Cristóbal sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
San Cristóbal has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is September, when average highs reach 26°C and the mean temperature sits around 21°C. January is the coolest month, with minimum temperatures around 16°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
San Cristóbal is a moderately rainy area, receiving approximately 970mm of precipitation annually, which averages out to around 81mm per month. The wettest month is November, averaging 128mm of rainfall. October and March also tend to see above-average precipitation. The driest month is August, with just 34mm. That's 93mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
San Cristóbal is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 2km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.
Seasons
93 days until Autumn
It is currently summer in San Cristóbal, which began on June 21, 2026. San Cristóbal sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 26°C, while the coldest stretch bottoms out in January near 16°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 18 to 26°C. Rainfall is heavy, totalling around 354mm across the season with a monthly average of 118mm. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 17 to 26°C. Rainfall is relatively light, with around 149mm over the season and a monthly average of 50mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 17 to 26°C. Rainfall is heavy, totalling around 321mm across the season with a monthly average of 107mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 16 to 26°C. Rainfall is relatively light, with around 145mm over the season and a monthly average of 48mm. Winds are generally light, averaging 2km/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 Cristóbal is during January, February, June, July, August, September and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 52mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for San Cristóbal 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.
