See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
29°
Overcast
Feels Like: 34°
Min: 29°
Max: 32°
The next few hours will be overcast, with tomorrow reaching 33°C and dropping to 28°C. The coming days will be thunderstorms throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:39
Sunrise
18:43
Sunset
Moon
Waxing Crescent
10:16
Moonrise
21:17
Moonset
Daily Forecast
Tuesday
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
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Weather in San Rafael tomorrow, September 16, 2026
San Rafael looks damp on September 16, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. The morning carries the wetter risk, with rain chances near 28% and the highest odds around 09:00. Cloud is also thick early on, peaking near 97% around 00:00.
Expect highs of 33°C and cooler readings close to 28°C. The air stays humid, with relative humidity between 58% and 86% and the peak around 05:00. Airflow remains manageable, reaching about 6.1 km/h around 00:00.
Later hours look less wet than the morning, when rain odds were closer to 28%; afternoon chances sit nearer 6%. Residual cloud near 91% around 12:00 may linger. Views remain open at about 16.1 km. Sunrise is at 06:39 and sunset at 18:42, giving 12 hours 2 minutes of sunlight today.
Taken together, San Rafael looks wet enough on September 16, 2026 that flexible outdoor plans work best, with temperatures peaking near 33°C.
Frequently asked questions about weather in San Rafael
How warm does it get in San Rafael?
The warmest month in San Rafael is August, with average high temperatures of 30°C. The average temperature during this period is around 29°C.
How cold does it get in San Rafael?
The coldest month in San Rafael is February, with average low temperatures of 25°C. The average temperature during this period is around 27°C.
What is the wettest time of year in San Rafael?
The wettest month in San Rafael is October, with an average of 215mm of precipitation.
What is the driest time of year in San Rafael?
The driest month in San Rafael is February, with an average of 6mm of precipitation.
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