Climate Insights for Santa Rosa

The climate in Santa Rosa is warm and mild. The average annual temperature is 22°C and approximately 1,099 mm of precipitation falls per year. August is the wettest month, receiving around 323 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: May, June, April. The coldest months are January, February, December, when temperatures can drop to 10°C.The climate in Santa Rosa is warm and mild. The average annual temperature is 71°F and approximately 43.3 in of precipitation falls per year. August is the wettest month, receiving around 12.7 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: May, June, April. The coldest months are January, February, December, when temperatures can drop to 50°F.

Temperatures in Santa Rosa vary considerably across the year, with a 22°C difference between the coldest and warmest months. The warmest month is May, when average highs reach 32°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 10°C and an average of 17°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.Temperatures in Santa Rosa vary considerably across the year, with a 39°F difference between the coldest and warmest months. The warmest month is May, when average highs reach 89°F and the mean temperature sits around 75°F. January is the coolest month, with minimum temperatures around 50°F and an average of 63°F. On average, daily temperatures fluctuate by about 23°F between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°F shift in average temperatures.

Santa Rosa is a moderately rainy area, receiving approximately 1,099 mm of precipitation annually, which averages out to around 92 mm per month. The wettest month is August, averaging 323 mm of rainfall. July and September also tend to see above-average precipitation. The driest month is April, with just 1 mm. That's 322 mm less than August, 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 43.3 in of precipitation annually, which averages out to around 3.6 in per month. The wettest month is August, averaging 12.7 in of rainfall. July and September also tend to see above-average precipitation. The driest month is April, with just 0 in. That's 12.7 in less than August, 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 5km/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 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, 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.Santa Rosa 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 April, averaging 4mph, though still comfortable for most outdoor activities. The calmest conditions occur in September, 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 Santa Rosa is during January, February, March, April, May, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 20 mm per month. 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, May, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 69°F with modest rainfall averaging 0.8 in per month. 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.