Climate Insights for Santa Rosa

The climate in Santa Rosa is warm and mild. The average annual temperature is 24°C and approximately 630 mm of precipitation falls per year. September is the wettest month, receiving around 144 mm of rainfall. Santa Rosa is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to 15°C.The climate in Santa Rosa is warm and mild. The average annual temperature is 76°F and approximately 24.8 in of precipitation falls per year. September is the wettest month, receiving around 5.7 in of rainfall. Santa Rosa is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to 60°F.

Santa Rosa sees moderate temperature variation throughout the year, ranging from 15°C to 31°C. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 15°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.Santa Rosa sees moderate temperature variation throughout the year, ranging from 60°F to 88°F. The warmest month is August, when average highs reach 88°F and the mean temperature sits around 84°F. January is the coolest month, with minimum temperatures around 60°F and an average of 64°F. Daily temperature variation is modest, with an average difference of 9°F between highs and lows. The sharpest temperature change occurs between October and November, with a 7°F shift in average temperatures.

Santa Rosa is a relatively dry area, receiving approximately 630 mm of precipitation annually, which averages out to around 53 mm per month. The wettest month is September, averaging 144 mm of rainfall. June and July also tend to see above-average precipitation. The driest month is December, with just 18 mm. That's 126 mm less than September, 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.Santa Rosa is a relatively dry area, receiving approximately 24.8 in of precipitation annually, which averages out to around 2.1 in per month. The wettest month is September, averaging 5.7 in of rainfall. June and July also tend to see above-average precipitation. The driest month is December, with just 0.7 in. That's 5 in less than September, 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.

Santa Rosa is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months.Santa Rosa is moderately windy, with an average annual wind speed of 11mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is April, averaging 12mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in September, with average winds dropping to 8mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4mph between the calmest and windiest months.

The best time to visit Santa Rosa is during January, February, March, April, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 27 mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 31°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.The best time to visit Santa Rosa is during January, February, March, April, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 70°F with modest rainfall averaging 1.1 in per month. By contrast, August can be uncomfortably hot with temperatures reaching 88°F. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Santa Rosa 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 Santa Rosa 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.