Climate Insights for Santa Rosa

The climate in Santa Rosa is warm and mild. The average annual temperature is 25°C and approximately 1,200 mm of precipitation falls per year. October is the wettest month, receiving around 278 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: April, March, May. The coldest months are January, February, December, when temperatures can drop to 19°C.The climate in Santa Rosa is warm and mild. The average annual temperature is 77°F and approximately 47.2 in of precipitation falls per year. October is the wettest month, receiving around 11 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: April, March, May. The coldest months are January, February, December, when temperatures can drop to 65°F.

Santa Rosa sees moderate temperature variation throughout the year, ranging from 19°C to 33°C. The warmest month is April, when average highs reach 33°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 19°C and an average of 24°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.Santa Rosa sees moderate temperature variation throughout the year, ranging from 65°F to 92°F. The warmest month is April, when average highs reach 92°F and the mean temperature sits around 80°F. January is the coolest month, with minimum temperatures around 65°F and an average of 74°F. On average, daily temperatures fluctuate by about 19°F between overnight lows and afternoon highs.

Santa Rosa is a moderately rainy area, receiving approximately 1,200 mm of precipitation annually, which averages out to around 100 mm per month. The wettest month is October, averaging 278 mm of rainfall. September and June also tend to see above-average precipitation. The driest month is February, with just 3 mm. That's 276 mm less than October, 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 moderately rainy area, receiving approximately 47.2 in of precipitation annually, which averages out to around 3.9 in per month. The wettest month is October, averaging 10.9 in of rainfall. September and June also tend to see above-average precipitation. The driest month is February, with just 0.1 in. That's 10.9 in less than October, 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 relatively calm, with an average annual wind speed of 9km/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 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 6km/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 be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12km/h in winter, 8km/h in spring, 9km/h in summer, 7km/h in autumn.Santa Rosa is mildly breezy, with an average annual wind speed of 6mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 8mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 3mph, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 5mph difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8mph in winter, 5mph in spring, 5mph in summer, 4mph in autumn.

The best time to visit Santa Rosa is during January, February, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 23 mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 33°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, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 75°F with modest rainfall averaging 0.9 in per month. By contrast, April can be uncomfortably hot with temperatures reaching 92°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.