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Climate almanac

Foster City

California, United States · 37.56°, -122.27°

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What is the weather like in Foster City in April?

In April, Foster City is typically 65°F (18°C) during the day and 50°F (10°C) at night. The month brings about 1.3 in (32 mm) of precipitation in total.

  • Average high65°F (18°C)
  • Average low50°F (10°C)
  • Precipitation1.3 in (32 mm)
  • Clear or mostly clear days11
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)