Climate Insights for San Mateo

The climate in San Mateo is hot. The average annual temperature is 27°C and approximately 2,409 mm of precipitation falls per year. San Mateo receives a notable amount of rainfall throughout the year, including during its driest month. San Mateo sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in San Mateo is hot. The average annual temperature is 80°F and approximately 94.9 in of precipitation falls per year. San Mateo receives a notable amount of rainfall throughout the year, including during its driest month. San Mateo sits near the equator, so seasonal temperature differences are minimal throughout the year.

San Mateo sees moderate temperature variation throughout the year, ranging from 23°C to 34°C. The warmest month is February, when average highs reach 34°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 23°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.San Mateo sees moderate temperature variation throughout the year, ranging from 73°F to 93°F. The warmest month is February, when average highs reach 93°F and the mean temperature sits around 82°F. January is the coolest month, with minimum temperatures around 73°F and an average of 81°F. Daily temperature variation is modest, with an average difference of 14°F between highs and lows.

San Mateo is a very wet location, receiving approximately 2,409 mm of precipitation annually, which averages out to around 201 mm per month. The wettest month is May, averaging 306 mm of rainfall. October and June also tend to see above-average precipitation. The driest month is February, with just 50 mm. That's 256 mm less than May, 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 Mateo is a very wet location, receiving approximately 94.9 in of precipitation annually, which averages out to around 7.9 in per month. The wettest month is May, averaging 12 in of rainfall. October and June also tend to see above-average precipitation. The driest month is February, with just 2 in. That's 10.1 in less than May, 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 Mateo 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 February, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 3km/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 Mateo is relatively calm, with an average annual wind speed of 2mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 3mph, 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 1mph gap between the calmest and windiest months.

The table below shows monthly climate averages for San Mateo 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 Mateo 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.