San Mateo County (San Mateo)
April
Weather in San Mateo County, California for April 2027
Your guide to San Mateo County weather in April - trends and predictions
In general, the average temperature in San Mateo County at the beginning of April is 15.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 15 °C by the end of April.
San Mateo County experiences moderate rainfall in April, with an average of 8 rainy days and a total precipitation of 60.6 mm.
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Temperatures
Rain 🌧️
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22
Dry days
8
Rainy days
0
Snow days
16°/9°
Temperatures
18 km/h
Avg max wind
79 %
Avg humidity
San Mateo County Weather April
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Temperatures trend during April in San Mateo County
See the weather trend as well as the moving average line
April weather in San Mateo County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Apr. 1 |  Moderate or heavy rain shower | 13° /10° | 5.7 mm | 2 | |
| Apr. 2 |  Cloudy | 13° /8° | 2.8 mm | 5 | |
| Apr. 3 |  Partly cloudy | 17° /8° | 0 mm | 6 | |
| Apr. 4 |  Overcast | 21° /9° | 0 mm | 6 | |
| Apr. 5 | Overcast | 19° /10° | 0 mm | 6 | |
| Apr. 6 | Overcast | 14° /8° | 0 mm | 3 | |
| Apr. 7 |  Patchy rain possible | 14° /9° | 0.2 mm | 3 | |
| Apr. 8 | Overcast | 17° /10° | 0 mm | 4 | |
| Apr. 9 | Overcast | 18° /11° | 0 mm | 3 | |
| Apr. 10 | Overcast | 16° /10° | 0 mm | 3 | |
| Apr. 11 | Overcast | 14° /10° | 17.2 mm | 2 | |
| Apr. 12 | Overcast | 14° /9° | 19.1 mm | 3 | |
| Apr. 13 | Overcast | 17° /9° | 0 mm | 6 | |
| Apr. 14 | Cloudy | 16° /9° | 0 mm | 5 | |
| Apr. 15 | Overcast | 16° /9° | 0 mm | 4 | |
| Apr. 16 | Overcast | 17° /9° | 0 mm | 6 | |
| Apr. 17 | Patchy rain possible | 17° /9° | 0.2 mm | 6 | |
| Apr. 18 | Overcast | 17° /9° | 0 mm | 3 | |
| Apr. 19 | Overcast | 17° /9° | 0 mm | 4 | |
| Apr. 20 | Overcast | 17° /9° | 6.2 mm | 5 | |
| Apr. 21 | Overcast | 17° /9° | 6 mm | 4 | |
| Apr. 22 | Overcast | 15° /9° | 1 mm | 5 | |
| Apr. 23 | Overcast | 14° /9° | 0 mm | 6 | |
| Apr. 24 | Patchy rain possible | 14° /9° | 0.1 mm | 6 | |
| Apr. 25 | Patchy rain possible | 13° /9° | 0.2 mm | 3 | |
| Apr. 26 | Patchy rain possible | 14° /10° | 1.3 mm | 4 | |
| Apr. 27 | Patchy rain possible | 13° /9° | 0.5 mm | 5 | |
| Apr. 28 | Overcast | 16° /9° | 0 mm | 7 | |
| Apr. 29 | Overcast | 17° /9° | 0 mm | 7 | |
| Apr. 30 |  Mist | 18° /10° | 0 mm | 7 | |
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Important Notice
Our weather forecast for San Mateo County in April is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Mateo County forecast closer to your planned date for the most up-to-date weather information.
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San Mateo County in April - FAQ
What are the expected maximum and minimum temperatures in San Mateo County during April?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in San Mateo County during April?
Moderate rainfall is anticipated in San Mateo County during April, with a total of 60.6 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in San Mateo County during April?
The average wind speed in San Mateo County during April is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
April rainfall patterns in San Mateo County
Explore the daily rainfall trends and prepare for San Mateo Countys April weather 💧
Typically, San Mateo County has 8 rainy days in April with a total of 60.6 mm of rainfall.
UV exposure in San Mateo County during April
Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
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Where is San Mateo County?Get accurate weather forecasts for San Mateo County, located at latitude 37.563 and longitude -122.326. Stay updated with localized weather information tailored for San Mateo County.
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