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Hourly Forecast
Daylight Hours
06:56
Sunrise
19:07
Sunset
Moon
Waxing Crescent
12:44
Moonrise
21:28
Moonset
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Weather in Sunnyvale today, September 16, 2026
Sunnyvale sees a largely clear day on September 16, 2026, interrupted by cloudier skies around 23:00. Plan for bright conditions either side of that cloudier interval. The opening hours look fair, as cloud stays near 21% around 05:00. Morning errands should face fewer weather interruptions.
The temperature range runs from about 11°C up to 25°C. The air stays humid, with relative humidity between 37% and 100% and the peak around 05:00. A lighter breeze peaks around 16:00 near 3.8 km/h.
Expect a more open afternoon, with limited cloud around 31% by 23:00. Residual damp risk should be lower than earlier. Horizontal visibility sits around 15.1 km, briefly nearer 12.2 km. Daylight runs from 06:56 to 19:07, lasting 12 hours 11 minutes of sunlight today.
The practical takeaway for Sunnyvale is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 25°C.
Frequently asked questions about weather in Sunnyvale
How warm does it get in Sunnyvale?
The warmest month in Sunnyvale is August, with average high temperatures of 26°C. The average temperature during this period is around 19°C.
How cold does it get in Sunnyvale?
The coldest month in Sunnyvale is February, with average low temperatures of 6°C. The average temperature during this period is around 11°C.
What is the wettest time of year in Sunnyvale?
The wettest month in Sunnyvale is January, with an average of 151mm of precipitation.
What is the driest time of year in Sunnyvale?
The driest month in Sunnyvale is July, with an average of 0mm of precipitation.
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