Average Monthly Sunshine hours in Foster City (CA)

This graph shows the average number of hours per month that Foster City receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

• On average, May is the sunniest month with 324 hours of sunshine.
• December has on average the lowest amount of sunshine with 160 hours.
• On average, the total annual amount of sun is 3072 hours.

Forecast: is it sunny in Foster City (CA)?

Sat   Nov 23

16°C | 10°C

W 14 km/h

1.4 mm

partly cloudy and chance of rain

hourly forecast

Sun   Nov 24

16°C | 9°C

S 14 km/h

1.9 mm

partly cloudy and chance of rain

hourly forecast

Mon   Nov 25

15°C | 11°C

S 7 km/h

21 mm

overcast and heavy rain

hourly forecast

5-Day Forecast 10-Day Forecast