Sunnyvale (CA)
March
Weather in Sunnyvale, California for March 2026
Your guide to Sunnyvale weather in March - trends and predictions
So far, March 2026 in Sunnyvale shows a warmer trend than usual by 4.4 °F.
Expect cooler weather in the next days in Sunnyvale with the forecast suggesting a temperature of 23.2 °F, lower than the historical average.
In general, the average temperature in Sunnyvale at the beginning of March is 12.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 23.9 °F by the end of March.
Sunnyvale in March brings notable rainfall, with an average of 18 rainy days and a total precipitation of 139.7 mm.
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Temperatures
Rain 🌧️
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13
Dry days
18
Rainy days
0
Snow days
15°/7°
Temperatures
15 km/h
Avg max wind
76 %
Avg humidity
Sunnyvale Weather March
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Temperatures trend during March in Sunnyvale
See the weather trend as well as the moving average line
March weather in Sunnyvale day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Mar. 1 |  Light rain shower | 14° /9° | 3.5 mm | 2 | |
| Mar. 2 | Light rain shower | 12° /8° | 14.2 mm | 2 | |
| Mar. 3 | Light rain shower | 11° /7° | 2 mm | 2 | |
| Mar. 4 | Patchy rain possible | 13° /7° | 0.1 mm | 2 | |
| Mar. 5 | Patchy rain possible | 14° /5° | 10.6 mm | 3 | |
| Mar. 6 | Patchy rain possible | 12° /6° | 4.6 mm | 3 | |
| Mar. 7 | Patchy rain possible | 14° /5° | 0 mm | 3 | |
| Mar. 8 |  Sunny | 19° /5° | 0 mm | 5 | |
| Mar. 9 |  Mist | 17° /8° | 0 mm | 3 | |
| Mar. 10 | Mist | 17° /7° | 1.9 mm | 4 | |
| Mar. 11 | Mist | 17° /5° | 0 mm | 4 | |
| Mar. 12 |  Light drizzle | 17° /8° | 12.9 mm | 4 | |
| Mar. 13 | Sunny | 14° /7° | 9.2 mm | 3 | |
| Mar. 14 | Sunny | 14° /6° | 2.9 mm | 3 | |
| Mar. 15 | Sunny | 19° /7° | 0 mm | 4 | |
| Mar. 16 | Sunny | 20° /9° | 0.6 mm | 4 | |
| Mar. 17 | Sunny | 21° /9° | 7.7 mm | 5 | |
| Mar. 18 | Sunny | 23° /9° | 0 mm | 5 | |
| Mar. 19 | Fog | 22° /9° | 0 mm | 5 | |
| Mar. 20 |  Overcast | 22° /10° | 0 mm | 4 | |
| Mar. 21 | Sunny | 30° /12° | 0 mm | 1.5 | |
| Mar. 22 |  Partly cloudy | 25° /9° | 0 mm | 1.6 | |
| Mar. 23 | Sunny | 24° /9° | 0 mm | 1.7 | |
| Mar. 24 | Sunny | 25° /12° | 0 mm | 1.8 | |
| Mar. 25 | Sunny | 24° /11° | 0 mm | 0 | |
| Mar. 26 | Sunny | 25° /9° | 0 mm | 5 | |
| Mar. 27 | Partly cloudy | 27° /12° | 0 mm | 5 | |
| Mar. 28 |  Cloudy | 30° /14° | 0 mm | 5 | |
| Mar. 29 | Partly cloudy | 26° /16° | 0 mm | 5 | |
| Mar. 30 | Sunny | 19° /9° | 0 mm | 4 | |
| Mar. 31 | Patchy rain possible | 16° /8° | 3.1 mm | 3 | |
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Important Notice
Our weather forecast for Sunnyvale in March 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 Sunnyvale forecast closer to your planned date for the most up-to-date weather information.
Change Month
Sunnyvale in March - FAQ
What are the expected maximum and minimum temperatures in Sunnyvale during March?
During March, expect a variety of temperatures with highs around 15° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sunnyvale during March?
Significant rainfall exceeding 139.7 mm is expected in Sunnyvale during March, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sunnyvale during March?
The average wind speed in Sunnyvale during March is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
March rainfall patterns in Sunnyvale
Explore the daily rainfall trends and prepare for Sunnyvales March weather 💧
Typically, Sunnyvale has 18 rainy days in March with a total of 139.7 mm of rainfall.
UV exposure in Sunnyvale during March
Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️
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