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San Mateo, California Weather:
Sunday, December 21, 2025
Rainy Weather
Day 54°
Night 46°
Precipitation 59 %
Wind 4 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (December 21, 2024)
Rainy Weather

Day

59°

Night

54°

Wind

8 mph

UV Index

1

Precipitation

96 %