San Diego (CA)
March
Weather in San Diego, California for March 2026
Your guide to San Diego weather in March - trends and predictions
Extreme Heat Watch - See hour by hour.
So far, March 2026 in San Diego shows a warmer trend than usual by 3.4 °F.
The forecast for the coming days of March 2026 predicts a temperature of 22.7 °F , which is warmer than usual.
In general, the average temperature in San Diego at the beginning of March is 15.4 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 17.1 °F by the end of March.
San Diego in March brings notable rainfall, with an average of 16 rainy days and a total precipitation of 125.6 mm.
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Temperatures
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15
Dry days
16
Rainy days
0
Snow days
15°/11°
Temperatures
20 km/h
Avg max wind
74 %
Avg humidity
San Diego Weather March
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Temperatures trend during March in San Diego
See the weather trend as well as the moving average line
March weather in San Diego day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Mar. 1 |  Light rain shower | 15° /11° | 1.4 mm | 3 | |
| Mar. 2 |  Sunny | 15° /10° | 1.5 mm | 3 | |
| Mar. 3 | Sunny | 16° /10° | 0.7 mm | 4 | |
| Mar. 4 |  Partly cloudy | 15° /11° | 0.1 mm | 4 | |
| Mar. 5 |  Overcast | 15° /11° | 5.7 mm | 4 | |
| Mar. 6 | Overcast | 16° /10° | 6.9 mm | 4 | |
| Mar. 7 | Overcast | 16° /9° | 19.2 mm | 4 | |
| Mar. 8 | Partly cloudy | 19° /9° | 0 mm | 5 | |
| Mar. 9 | Partly cloudy | 18° /10° | 0 mm | 5 | |
| Mar. 10 | Partly cloudy | 17° /11° | 0 mm | 5 | |
| Mar. 11 |  Mist | 15° /11° | 6.5 mm | 4 | |
| Mar. 12 | Fog | 19° /12° | 0.1 mm | 4 | |
| Mar. 13 | Overcast | 18° /12° | 14.5 mm | 5 | |
| Mar. 14 | Partly cloudy | 21° /13° | 0 mm | 1.6 | |
| Mar. 15 | Partly cloudy | 23° /13° | 0 mm | 1.6 | |
| Mar. 16 | Partly cloudy | 30° /13° | 0 mm | 1.6 | |
| Mar. 17 | Sunny | 26° /19° | 0 mm | 0 | |
| Mar. 18 | Sunny | 26° /19° | 0 mm | 6 | |
| Mar. 19 | Sunny | 27° /20° | 0 mm | 6 | |
| Mar. 20 | Sunny | 26° /20° | 0 mm | 6 | |
| Mar. 21 | Sunny | 24° /19° | 0 mm | 6 | |
| Mar. 22 | Sunny | 20° /16° | 0 mm | 5 | |
| Mar. 23 | Partly cloudy | 18° /15° | 0 mm | 5 | |
| Mar. 24 | Partly cloudy | 17° /15° | 0 mm | 5 | |
| Mar. 25 | Patchy rain possible | 16° /13° | 0.9 mm | 3 | |
| Mar. 26 | Sunny | 19° /14° | 0 mm | 5 | |
| Mar. 27 | Sunny | 25° /16° | 0 mm | 5 | |
| Mar. 28 | Partly cloudy | 17° /10° | 0 mm | 5 | |
| Mar. 29 |  Light drizzle | 14° /10° | 0.6 mm | 4 | |
| Mar. 30 | Light rain shower | 14° /10° | 10 mm | 3 | |
| Mar. 31 | Overcast | 15° /10° | 5.3 mm | 4 | |
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Important Notice
Our weather forecast for San Diego 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 San Diego forecast closer to your planned date for the most up-to-date weather information.
Change Month
San Diego in March - FAQ
What are the expected maximum and minimum temperatures in San Diego during March?
During March, expect a variety of temperatures with highs around 15° and lows near 11°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Diego during March?
Significant rainfall exceeding 125.6 mm is expected in San Diego during March, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Diego during March?
The average wind speed in San Diego during March is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
March rainfall patterns in San Diego
Explore the daily rainfall trends and prepare for San Diegos March weather 💧
Typically, San Diego has 16 rainy days in March with a total of 125.6 mm of rainfall.
UV exposure in San Diego during March
Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️
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