When to go · Foster City

Foster City in January

Avoid month. Listed as a month to avoid: Nov–Mar (rain), though winter is mild.

Key facts

Verdict: Avoid
Temperature: 14°C (57°F)57°F (14°C) / 6°C (43°F)43°F (6°C); average high / low
Rain days: 11
Crowds: Low; United States overall
Prices: Low; United States overall

Plan around it

Verdict

AvoidBest and avoid months for Foster City

Listed as a month to avoid: Nov–Mar (rain), though winter is mild.

January is rated avoid. These months rate higher:

Long-term averages

Foster CityHighs around 14 °C (57 °F), lows around 6 °C (43 °F), rain on about 11 daysHighs around 57 °F (14 °C), lows around 43 °F (6 °C), rain on about 11 days

United States overall: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.

Weather, crowds and prices for any two months in Foster City, side by side.

First month

Second month

January: Listed as a month to avoid: Nov–Mar (rain), though winter is mild.

April: Inside Foster City's best window: Apr–Jun, Sep–Oct.

Foster City: figures are long-term averages from this guide, not a forecast.