Foster City
Next 24 hours
Local time: 17:20 PDT
Sunrise: 06:29
Sunset: 19:55
Tuesday
18:00
68°F 20°C
21:00
63°F 17°C
Wednesday
00:00
61°F 16°C
03:00
59°F 15°C
06:00
59°F 15°C
09:00
64°F 18°C
12:00
72°F 22°C
15:00
77°F 25°C

Foster City, California, USA: Annual Weather Averages

July is the hottest month in Foster City with an average temperature of 68°F (20°C) and the coldest is January at 52°F (11°C).

Average Temperature: Foster City

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 11 12 14 15 17 19 20 20 20 18 14 11
°F 52 54 57 59 63 66 68 68 68 64 57 52

Average High/Low Temperature: Foster City

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High °C 15 16 18 19 22 24 25 25 25 23 18 15
High °F 59 61 64 66 72 75 77 77 77 73 64 59
Low °C 7 8 9 10 12 14 15 15 14 13 10 7
Low °F 45 46 48 50 54 57 59 59 57 55 50 45

Chance of sunny day: Foster City

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
% 34 27 31 37 48 58 57 51 59 46 38 30

Chance of rain: Foster City

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
% 21 26 21 14 7 1 1 0 2 6 16 24

Chance of windy day: Foster City

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
% 8 12 22 26 30 28 20 15 8 7 7 12

Chance of cloudy day: Foster City

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
% 38 44 36 29 20 10 4 6 6 16 27 38

Chance of fog day: Foster City

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
% 4 5 1 0 0 0 0 0 1 1 4 4

Chance of snow day: Foster City

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
% 0 0 0 0 0 0 0 0 0 0 0 0

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