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Today Hourly 7 days 30 days December
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December 2025 Weather | San Mateo, California

Mon 12/1
Cloudy Weather
Day 57°
Night 43°
20
Tue 12/2
Sunny Weather
Day 61°
Night 43°
10
Wed 12/3
Cloudy Weather
Day 61°
Night 46°
25
Thu 12/4
Rainy Weather
Day 59°
Night 48°
63
Fri 12/5
Cloudy Weather
Day 55°
Night 48°
20
Sat 12/6
Cloudy Weather
Day 55°
Night 46°
25
Sun 12/7
Partly Sunny with Showers
Day 57°
Night 48°
59
Mon 12/8
Sunny Weather
Day 57°
Night 43°
10
Tue 12/9
Cloudy Weather
Day 55°
Night 41°
20
Wed 12/10
Cloudy Weather
Day 55°
Night 41°
20
Thu 12/11
Cloudy Weather
Day 55°
Night 43°
25
Fri 12/12
Cloudy Weather
Day 55°
Night 41°
20
Sat 12/13
Cloudy Weather
Day 57°
Night 41°
10
Sun 12/14
Cloudy Weather
Day 55°
Night 43°
25
Mon 12/15
Cloudy Weather
Day 55°
Night 46°
25
Tue 12/16
Cloudy Weather
Day 57°
Night 46°
25
Wed 12/17
Cloudy Weather
Day 61°
Night 48°
25
Thu 12/18
Cloudy Weather
Day 57°
Night 46°
25
Fri 12/19
Sunny Weather
Day 57°
Night 45°
20
Sat 12/20
Cloudy Weather
Day 57°
Night 43°
20
Sun 12/21
Cloudy Weather
Day 57°
Night 45°
25
Mon 12/22
Cloudy Weather
Day 61°
Night 43°
0
Tue 12/23
Sunny Weather
Day 61°
Night 45°
0
Wed 12/24
Sunny Weather
Day 61°
Night 45°
0
Thu 12/25
Sunny Weather
Day 61°
Night 45°
0
Fri 12/26
Sunny Weather
Day 63°
Night 46°
100
Sat 12/27
Sunny Weather
Day 61°
Night 43°
49
Sun 12/28
Sunny Weather
Day 61°
Night 45°
40
Mon 12/29
Sunny Weather
Day 61°
Night 45°
40
Tue 12/30
Cloudy Weather
Day 61°
Night 45°
0
Wed 12/31
Cloudy Weather
Day 61°
Night 46°
1