Climate Insights for San Jacinto

The climate in San Jacinto is cold. The average annual temperature is 1°C and approximately 29mm of precipitation falls per year. February is the wettest month, receiving around 6mm of rainfall. San Jacinto sits near the equator, so seasonal temperature differences are minimal throughout the year. Light snow can occur between February and July.

San Jacinto sees moderate temperature variation throughout the year, ranging from -7°C to 11°C. January is the warmest month, though highs remain moderate at 11°C with a mean of 10°C. The coldest month is July, when overnight lows fall to -7°C and the daily average is -5°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between January and February, with a 8°C shift in average temperatures.

San Jacinto is a quite dry location, receiving approximately 29mm of precipitation annually, which averages out to around 2mm per month. The wettest month is February, averaging 6mm of rainfall. January and December also tend to see above-average precipitation. The driest month is August, with just 0mm. 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. Light snowfall can occur between February and July, totalling around 15cm annually. February is the snowiest month with approximately 4cm.

San Jacinto is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, 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 3km/h in winter, 3km/h in spring, 7km/h in summer, 3km/h in autumn.

It is currently summer in San Jacinto, which began on June 21, 2026. San Jacinto sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in January at around 11°C, while the coldest stretch bottoms out in July near -7°C. Autumn is next, beginning on September 23, 2026 — 17 days from now.

The table below shows monthly climate averages for San Jacinto 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.