Climate Insights for José de San Martín

The climate in José de San Martín is cool. The average annual temperature is 8°C and approximately 344mm of precipitation falls per year. June is the wettest month, receiving around 45mm of rainfall. José de San Martín 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: February, January, December. The coldest months are July, June, August, when temperatures can drop to -2°C. Snowfall occurs from April to October, with around 59cm accumulating over the season.

Temperatures in José de San Martín vary considerably across the year, with a 25°C difference between the coldest and warmest months. February is the warmest month, though highs remain moderate at 23°C with a mean of 15°C. The coldest month is July, when overnight lows fall to -2°C and the daily average is 1°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 4°C shift in average temperatures.

José de San Martín is a quite dry location, receiving approximately 344mm of precipitation annually, which averages out to around 29mm per month. The wettest month is June, averaging 45mm of rainfall. July and August also tend to see above-average precipitation. The driest month is February, with just 13mm. That's 32mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Snowfall is a regular feature from April to October, with around 59cm accumulating over the season. July typically sees the most snow at around 17cm.

José de San Martín is moderately windy, with an average annual wind speed of 23km/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 27km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 19km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 20km/h in winter, 24km/h in spring, 26km/h in summer, 21km/h in autumn.

It is currently autumn in José de San Martín, which began on March 20, 2026. José de San Martín 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 February at around 23°C, while the coldest stretch bottoms out in July near -2°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit José de San Martín is during January and February, when the weather is most comfortable for travellers. During these months, average temperatures hover around 15°C with modest rainfall averaging 15mm per month. By contrast, July can be quite cold with temperatures dropping to -2°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for José de San Martín 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.