San Mateo (CA)
Today
Today weather in San Mateo
Monday, March 16th, 2026
31°
Sunny
Official weather alert: Heat Advisory. Today, San Mateo is set to face a notably hot day, with temperatures spiking up to 31 °F and offering slight relief at 12 °F by night. Gentle breezes are expected across San Mateo Today, with speeds reaching around 10 km/h.
31° / 13°
Temp
0%
Rain
10 km/h
Wind
48%
Humidity
San Mateo Weather Pages
San Mateo hourly forecast for today
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| 12:00 AM | 01:00 AM | 02:00 AM | 03:00 AM | 04:00 AM | 05:00 AM | 06:00 AM | 07:00 AM | 07:19 AM | 08:00 AM | 09:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 01:00 PM | 02:00 PM | 03:00 PM | 04:00 PM | 05:00 PM | 06:00 PM | 07:00 PM | 07:18 PM | 08:00 PM | 09:00 PM | 10:00 PM | 11:00 PM | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | | | |  | | | | | | | |  | | | | |  | |  | | | Next |
| temperatures | 17.3° | 17.3° | 16.1° | 14.8° | 14.6° | 14.7° | 14.7° | 14.6° | Sunrise | 16.1° | 18.8° | 23° | 25.8° | 28° | 29.7° | 26° | 24° | 23.6° | 21.7° | 19.6° | 17.9° | Sunset | 15.9° | 14.4° | 14.7° | 13.5° | |
| wind speed | 1 km/h | 4 km/h | 5 km/h | 3 km/h | 3 km/h | 3 km/h | 4 km/h | 4 km/h | 5 km/h | 5 km/h | 5 km/h | 5 km/h | 6 km/h | 7 km/h | 8 km/h | 9 km/h | 10 km/h | 10 km/h | 10 km/h | 9 km/h | 7 km/h | 6 km/h | 4 km/h | 4 km/h | |||
| wind degree | 65° | 107° | 110° | 108° | 58° | 48° | 56° | 67° | 71° | 65° | 57° | 36° | 13° | 358° | 351° | 343° | 330° | 320° | 313° | 306° | 318° | 327° | 310° | 318° | |||
| wind direction | ENE | ESE | ESE | ESE | ENE | NE | NE | ENE | ENE | ENE | ENE | NE | NNE | N | N | NNW | NNW | NW | NW | NW | NW | NNW | NW | NW | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 35% | 24% | 55% | 47% | 49% | 42% | 40% | 39% | 39% | 37% | 36% | 33% | 31% | 27% | 26% | 56% | 58% | 50% | 68% | 76% | 76% | 88% | 91% | 66% | |||
| dew point | 0.6° | -3.6° | -2.4° | 3.1° | 3.4° | 1.7° | 1.4° | 1° | 0.9° | 2.9° | 5.8° | 9.6° | 10° | 9.1° | 9.7° | 13.2° | 13.4° | 12.2° | 13.6° | 13.3° | 12° | 11.9° | 11.5° | 8.7° | |||
| visibility | 10 km | 10 km | 14 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 30% | 30% | 13% | 32% | 33% | 18% | 44% | 49% | 0% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.9 | 2.2 | 3.7 | 5.2 | 6.1 | 5.8 | 4.6 | 2.8 | 1.3 | 0.4 | 0 | 0 | 0 | 0 | 0 |
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View of San Mateo today
Explore San Mateo live webcam feed to see how the weather is shaping up today in San Mateo. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.
Stay informed and make the most of your day with our live weather updates from San Mateo today.
Weather in San Mateo today
The weather in San Mateo today is expected to be significantly warmer than usual, with a forecast temperature of 31 °F, compared to an average of 13 °F for March 16th in recent years.
temperatures
31 °F
rain
0 mm
wind
10 km/h
UV
Low
San Mateo daylight overview ☀️
Today in San Mateo, The sun rises at 07:19 and sets at 19:18, giving a total daylight duration of 11 hours and 59 minutes.
Quick links
More San Mateo weather pages
What to wear today in San Mateo? clothing recommendations
Stay comfortably stylish - your tailored guide for today's San Mateo forecast.
Short-sleeve shirt
Shorts
Lightweight pants
Breathable footwear
Sunglasses
Wide brimmed hat
Sunscreen
Flip flop
The weather today in San Mateo - FAQ
What is the maximum temperature for today in San Mateo?
The maximum temperature for today in San Mateo is expected to be 31° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in San Mateo? 🌧️
No, there is no significant chance of rain in San Mateo today. It should be a dry day.
What will be the wind speed today in San Mateo? 🌀
The wind in San Mateo is expected to blow at 10 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in San Mateo today?
Given the forecast of 31 °F with a 0% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in San Mateo today.
What is the sunrise and sunset time for San Mateo today?
The sun is expected to rise at 07:19 and set at 19:18 in San Mateo.
How accurate is the weather forecast San Mateo today? ✅
San Mateo weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is San Mateo?Get accurate weather forecasts for San Mateo, located at latitude 37.563 and longitude -122.326. Stay updated with localized weather information tailored for San Mateo.
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