San Mateo

Current Weather

27°81°

Mostly Clear

Feels Like: 30°85°

Min: 27°81°

Max: 28°82°

The next few hours will be mostly clear, with today reaching 28°C and dropping to 27°C. The coming days will be drizzle

Hourly Forecast
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Air Quality
8
Good

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

GoodHazardous
Daylight Hours

07:34

Sunrise

19:07

Sunset

11 hours 33 minutes of sunlight today
Moon

08:19

Moonrise

19:44

Moonset

Daily Forecast

Today

27°81°
28°82°

Monday

27°80°
27°81°

Tuesday

26°80°
27°81°

Wednesday

26°79°
27°80°

Thursday

26°79°
26°79°

Friday

26°79°
27°80°

Saturday

26°79°
27°81°

Sunday

26°79°
27°81°

Monday

25°77°
29°85°

Tuesday

25°76°
31°88°
UV Index
No protection needed
0Low
LowExtreme
Humidity
80%Humid
LowHigh
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Weather in San Mateo today, October 11, 2026

Expect a mostly clear day in San Mateo on October 11, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. The morning looks comparatively open, with cloud near 38% around 05:00. Early outdoor plans have a better chance of staying dry and bright.Expect a mostly clear day in San Mateo on October 11, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. The morning looks comparatively open, with cloud near 38% around 05:00. Early outdoor plans have a better chance of staying dry and bright.

The day peaks near 28°C and cools toward 27°C. Moisture in the air spans 77%-80%, with the highest values around 05:00. Airflow remains manageable, reaching about 23 km/h around 05:00.The day peaks near 82°F and cools toward 81°F. Moisture in the air spans 77%-80%, with the highest values around 05:00. Airflow remains manageable, reaching about 14 mph around 05:00.

Later hours favour clearer intervals, as cloud stays near 57% around 22:00. The afternoon is the better half for outdoor time. Horizontal visibility holds close to 16.1 km. The sun rises at 07:34 and sets at 19:07, for a total of 11 hours 33 minutes of sunlight today.Later hours favour clearer intervals, as cloud stays near 57% around 22:00. The afternoon is the better half for outdoor time. Horizontal visibility holds close to 10 mi. The sun rises at 07:34 and sets at 19:07, for a total of 11 hours 33 minutes of sunlight today.

Overall, San Mateo on October 11, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 28°C.Overall, San Mateo on October 11, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 82°F.

Frequently asked questions about weather in San Mateo

How warm does it get in San Mateo?

The warmest month in San Mateo is July, with average high temperatures of 32°C. The average temperature during this period is around 27°C.The warmest month in San Mateo is July, with average high temperatures of 89°F. The average temperature during this period is around 81°F.

How cold does it get in San Mateo?

The coldest month in San Mateo is January, with average low temperatures of 18°C. The average temperature during this period is around 21°C.The coldest month in San Mateo is January, with average low temperatures of 65°F. The average temperature during this period is around 71°F.

What is the wettest time of year in San Mateo?

The wettest month in San Mateo is June, with an average of 203 mm of precipitation.The wettest month in San Mateo is June, with an average of 8 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 22 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 →