Which is the hottest month in San Mateo?

The hottest time of year in San Mateo is normally August. Expect maximum daytime temperatures to reach 26°C with low heat and humidity.

Which month has the most rain in San Mateo?

In terms of rainfall, December is usually the wettest month in San Mateo with 51mm on average. There are normally 5 days in December with some rain.

When is it sunniest in San Mateo?

The sunniest time of year in San Mateo is normally August with bright sunshine on average for 70% of daylight hours; that's 9 hours of sunshine per day.

Best time to visit San Mateo

Q: When is the best time to visit San Mateo?

The best time to visit San Mateo is July based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Find the best time to visit San Mateo and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

San Mateo by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Destination

When is the best time to visit San Mateo?

The best time to visit San Mateo is July based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

2
Jan
2.5
Feb
3
Mar
3.5
Apr
4
May
4.5
Jun
5
Jul
4.5
Aug
4
Sep
4
Oct
3
Nov
2
Dec

Change criteria

Max Day Temperature (°F)

64
Jan
64
Feb
66
Mar
66
Apr
70
May
73
Jun
77
Jul
79
Aug
77
Sep
73
Oct
68
Nov
64
Dec

Hours of Sunshine (daily)

6
Jan
7
Feb
7
Mar
8
Apr
8
May
9
Jun
10
Jul
9
Aug
8
Sep
7
Oct
6
Nov
6
Dec