Climate Insights for San Rafael
Climate Overview
The climate in San Rafael is hot. The average annual temperature is 25°C and approximately 933 mm of precipitation falls per year. September is the wettest month, receiving around 160 mm of rainfall. San Rafael 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, March, when temperatures can drop to 18°C.The climate in San Rafael is hot. The average annual temperature is 77°F and approximately 36.8 in of precipitation falls per year. September is the wettest month, receiving around 6.3 in of rainfall. San Rafael 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, March, when temperatures can drop to 65°F.
Temperature
San Rafael sees moderate temperature variation throughout the year, ranging from 18°C to 32°C. The warmest month is August, when average highs reach 32°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 18°C and an average of 22°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.San Rafael sees moderate temperature variation throughout the year, ranging from 65°F to 90°F. The warmest month is August, when average highs reach 90°F and the mean temperature sits around 82°F. January is the coolest month, with minimum temperatures around 65°F and an average of 71°F. On average, daily temperatures fluctuate by about 15°F between overnight lows and afternoon highs.
Precipitation
San Rafael is a moderately rainy area, receiving approximately 933 mm of precipitation annually, which averages out to around 78 mm per month. The wettest month is September, averaging 160 mm of rainfall. June and May also tend to see above-average precipitation. The driest month is February, with just 19 mm. That's 140 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.San Rafael is a moderately rainy area, receiving approximately 36.8 in of precipitation annually, which averages out to around 3.1 in per month. The wettest month is September, averaging 6.3 in of rainfall. June and May also tend to see above-average precipitation. The driest month is February, with just 0.7 in. That's 5.5 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.
Wind
San Rafael is relatively calm, with an average annual wind speed of 11km/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 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12km/h in winter, 12km/h in spring, 10km/h in summer, 10km/h in autumn.San Rafael is mildly breezy, with an average annual wind speed of 7mph. 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 5mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8mph in winter, 7mph in spring, 6mph in summer, 6mph in autumn.
Best Time to Visit
The best time to visit San Rafael is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 31 mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 32°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit San Rafael is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 73°F with modest rainfall averaging 1.2 in per month. By contrast, August can be uncomfortably hot with temperatures reaching 90°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for San Rafael 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 Rafael 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.