San Mateo

Current Weather

27°80°

Clear

Feels Like: 26°78°

Min: 26°79°

Max: 32°90°

The next few hours will be clear, with today reaching 32°C and dropping to 26°C. The coming days will be drizzle

Hourly Forecast
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Air Quality
20
Good

Air quality is satisfactory, and air pollution poses little or no risk.

GoodHazardous
Daylight Hours

07:04

Sunrise

18:38

Sunset

11 hours 34 minutes of sunlight today
Moon

07:47

Moonrise

19:16

Moonset

Daily Forecast

Today

26°79°
32°90°

Monday

26°78°
33°91°

Tuesday

25°77°
31°88°

Wednesday

24°75°
33°92°

Thursday

24°76°
31°88°

Friday

25°76°
30°86°

Saturday

24°75°
25°78°

Sunday

24°76°
31°87°

Monday

24°76°
27°81°

Tuesday

24°76°
32°89°
UV Index
No protection needed
0Low
LowExtreme
Humidity
85%Humid
LowHigh
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Weather in San Mateo today, October 11, 2026

San Mateo starts October 11, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. The morning looks comparatively open, with cloud near 20% around 11:00. Early outdoor plans have a better chance of staying dry and bright.San Mateo starts October 11, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. The morning looks comparatively open, with cloud near 20% around 11:00. Early outdoor plans have a better chance of staying dry and bright.

The day peaks near 32°C and cools toward 26°C. Relative humidity sits between 60% and 87%, reaching its peak around 05:00. Expect gentle winds, highest near 17:00 at 24 km/h.The day peaks near 90°F and cools toward 79°F. Relative humidity sits between 60% and 87%, reaching its peak around 05:00. Breezes become lively, peaking around 17:00 near 15 mph.

Through the afternoon wet weather remains a factor, with rain chances near 76% around 12:00. Cloud also stays substantial, close to 28% near 14:00. Views remain open at about 16.1 km. The sun rises at 07:04 and sets at 18:38, for a total of 11 hours 34 minutes of sunlight today.Through the afternoon wet weather remains a factor, with rain chances near 76% around 12:00. Cloud also stays substantial, close to 28% near 14:00. Views remain open at about 10 mi. The sun rises at 07:04 and sets at 18:38, for a total of 11 hours 34 minutes of sunlight today.

The practical takeaway for San Mateo on October 11, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 32°C.The practical takeaway for San Mateo on October 11, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 90°F.

Frequently asked questions about weather in San Mateo

How warm does it get in San Mateo?

The warmest month in San Mateo is August, with average high temperatures of 32°C. The average temperature during this period is around 28°C.The warmest month in San Mateo is August, with average high temperatures of 90°F. The average temperature during this period is around 83°F.

How cold does it get in San Mateo?

The coldest month in San Mateo is January, with average low temperatures of 21°C. The average temperature during this period is around 24°C.The coldest month in San Mateo is January, with average low temperatures of 70°F. The average temperature during this period is around 75°F.

What is the wettest time of year in San Mateo?

The wettest month in San Mateo is May, with an average of 181 mm of precipitation.The wettest month in San Mateo is May, with an average of 7.1 in of precipitation.

What is the driest time of year in San Mateo?

The driest month in San Mateo is February, with an average of 21 mm of precipitation.The driest month in San Mateo is February, with an average of 0.8 in of precipitation.

View full climate insights for San Mateo →