Climate Insights for San Jose

The climate in San Jose is warm and mild. The average annual temperature is 23°C and approximately 1,163 mm of precipitation falls per year. April is the wettest month, receiving around 177 mm of rainfall. San Jose sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in San Jose is warm and mild. The average annual temperature is 74°F and approximately 45.8 in of precipitation falls per year. April is the wettest month, receiving around 7 in of rainfall. San Jose sits near the equator, so seasonal temperature differences are minimal throughout the year.

San Jose sees moderate temperature variation throughout the year, ranging from 18°C to 30°C. The warmest month is September, when average highs reach 30°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 18°C and an average of 23°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.San Jose sees moderate temperature variation throughout the year, ranging from 65°F to 86°F. The warmest month is September, when average highs reach 86°F and the mean temperature sits around 75°F. January is the coolest month, with minimum temperatures around 65°F and an average of 73°F. On average, daily temperatures fluctuate by about 17°F between overnight lows and afternoon highs.

San Jose is a moderately rainy area, receiving approximately 1,163 mm of precipitation annually, which averages out to around 97 mm per month. The wettest month is April, averaging 177 mm of rainfall. November and March also tend to see above-average precipitation. The driest month is August, with just 15 mm. That's 162 mm less than April, 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 Jose is a moderately rainy area, receiving approximately 45.8 in of precipitation annually, which averages out to around 3.8 in per month. The wettest month is April, averaging 7 in of rainfall. November and March also tend to see above-average precipitation. The driest month is August, with just 0.6 in. That's 6.4 in less than April, 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 Jose is relatively calm, with an average annual wind speed of 5km/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 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.San Jose is relatively calm, with an average annual wind speed of 3mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is July, averaging 4mph, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 2mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2mph gap between the calmest and windiest months.

The best time to visit San Jose is during January, June, July, August, September and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 50 mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit San Jose is during January, June, July, August, September and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 74°F with modest rainfall averaging 2 in per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for San Jose 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.The table below shows monthly climate averages for San Jose based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.