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Hourly Forecast
Daylight Hours
06:56
Sunrise
19:07
Sunset
Moon
Waxing Crescent
12:45
Moonrise
21:26
Moonset
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Weather in San Ramon today, September 16, 2026
San Ramon is set for a fine, sunny day on September 16, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. Cloud leads the morning, peaking close to 100% near 01:00. Sunshine has little room until later in the day.
Expect highs of 19°C and cooler readings close to 13°C. Moisture in the air spans 69%-100%, with the highest values around 04:00. Airflow remains manageable, reaching about 8.0 km/h around 14:00.
Afternoon skies stay clogged, peaking close to 78% near 21:00. The grey theme continues rather than clearing out. Visibility holds near 11.6 km, though it can fall to 0.1 km. Sunrise is at 06:56 and sunset at 19:07, giving 12 hours 11 minutes of sunlight today.
Taken together, settled sunshine in San Ramon on September 16, 2026 makes outdoor timing easier, with highs near 19°C.
Frequently asked questions about weather in San Ramon
How warm does it get in San Ramon?
The warmest month in San Ramon is August, with average high temperatures of 28°C. The average temperature during this period is around 20°C.
How cold does it get in San Ramon?
The coldest month in San Ramon is December, with average low temperatures of 6°C. The average temperature during this period is around 10°C.
What is the wettest time of year in San Ramon?
The wettest month in San Ramon is January, with an average of 104mm of precipitation.
What is the driest time of year in San Ramon?
The driest month in San Ramon is July, with an average of 0mm of precipitation.
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