Nearby locations
San Mateo County, California, United States
Grabtown, California, United States
Redwood Park, California, United States
Nearby popular places
Pursima Creek Redwoods Open Space, United States
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Weather in San Mateo County, United States

40°
Mostly clear
Feels like 40°
·
High63°Low39°
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Air quality

Full Details
0
30
500
Air quality:Good

Pollen index

Full Details
Tree
1/5
012345
Weed
0/5
012345
Grass
0/5
012345

Today's weather summary

The weather in San Mateo County on Tuesday, April 23rd, is going to be cloudy for most of the day, with clear skies in the afternoon.

There is also a chance for few clouds during the morning around 10 am.

Weather information for San Mateo County, on Tuesday, April 23rd:

The maximum temperature during the day will be 58°F at about noon. The day will have very high relative humidity, with average humidity of 74%, ranging from 64% to a maximum value of 98% at about 10 pm. The wind will be breezy, and will get up to 11 mph at 4 pm, blowing from the north-west. The cloud coverage will range from 3% around 8 pm to as high as 100% around 11 pm with an average of 66%.

There is no probability for any precipitation throughout the day. The dew point will range from 38°F up to a maximum value of 46°F around 1 pm.

The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1016 hPa. Sunrise will be at 6:19 am, and sunset at 8:07 pm. The day will have 13 hours and 48 minutes of daylight.

Air quality forecast for San Mateo County, on Tuesday, April 23rd:

On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 20 and 43.

Pollen forecast for San Mateo County, on Tuesday, April 23rd:

Tree pollen on this day is expected to have very high risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have very low risk.

The weather in San Mateo County on Wednesday, April 24th, will be cloudy for most of the day, with some clouds around noon.

There's seems to be also high probability of many clouds around noon at about 11 am.

Weather details for San Mateo County, on Wednesday, April 24th:

The maximum temperature during the day is going to be 59°F at about 2 pm. The day will have very high relative humidity, with average humidity of 79%, ranging from 52% to a maximum value of 97% at about midnight. The wind will be light, and will get up to 8 mph at 4 pm, blowing from the west. The cloud coverage will range from 25% around 2 pm to as high as 100% around 11 pm with an average of 84%.

The precipitation probability will change throughout the day between 0% and 5%. The highest chance for precipitation will be around 10 pm and the lowest probability around midnight. The dew point will range from 41°F up to a maximum value of 46°F around 11 pm.

The visibility is expected to be good with average visibility of 9 mi throughout the day. Atmospheric pressure will be high with average pressure of 1020 hPa. Sunrise will be at 6:17 am, and sunset at 8:08 pm. The day will have 13 hours and 51 minutes of daylight.

Air quality forecast for San Mateo County, on Wednesday, April 24th:

On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 26 and 36.

Pollen forecast for San Mateo County, on Wednesday, April 24th:

Tree pollen on this day is expected to have very high risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have very low risk.

FAQ

How warm does it get in San Mateo County?
The average annual highest temperature in San Mateo County is 26.3°C (79.3°F), and the September 1st is the hottest day on average.
How cold does it get in San Mateo County?
The average annual lowest temperature in San Mateo County is 5.4°C (41.7°F), and the December 31st is the coldest day on average.
Which month has the most rain in San Mateo County?
The wettest months in San Mateo County are February and January.