Climate Insights for San Bernardo

The climate in San Bernardo is cold. The average annual temperature is 1°C and approximately 280mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. San Bernardo is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: April, March, May. The coldest months are August, September, February, when temperatures can drop to -8°C. San Bernardo experiences heavy snowfall, typically from January through December.

San Bernardo sees moderate temperature variation throughout the year, ranging from -8°C to 12°C. April is the warmest month, though highs remain moderate at 12°C with a mean of 6°C. The coldest month is August, when overnight lows fall to -8°C and the daily average is -1°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between February and March, with a 5°C shift in average temperatures.

San Bernardo is a quite dry location, receiving approximately 280mm of precipitation annually, which averages out to around 23mm per month. The wettest month is March, averaging 33mm of rainfall. June and September also tend to see above-average precipitation. The driest month is October, with just 3mm. That's 30mm less than March, 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. San Bernardo receives heavy snowfall, accumulating around 224cm annually from January through December. The snowiest month is March, with approximately 33cm. Winter travel should account for significant snow cover.

San Bernardo is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 2km/h in winter, 3km/h in spring, 6km/h in summer, 3km/h in autumn.

It is currently winter in San Bernardo, which began on June 21, 2026. San Bernardo is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in April at around 12°C, while the coldest stretch bottoms out in August near -8°C. Spring is next, beginning on September 23, 2026 — 16 days from now.

The table below shows monthly climate averages for San Bernardo 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.