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San Mateo, California Weather:
Saturday, December 20, 2025
Rainy Weather
Day 52°
Night 45°
Precipitation 59 %
Wind 9 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (December 20, 2024)
Cloudy Weather

Day

57°

Night

52°

Wind

4 mph

UV Index

2

Precipitation

0 %