March weather forecastSan Rafael, CA
March
Weather in March
The first month of the spring, March, is still a mild month in San Rafael, California, with an average temperature fluctuating between 46.9°F (8.3°C) and 59.4°F (15.2°C).Temperature
Stepping into March, San Rafael records an average high-temperature of a still refreshing 59.4°F (15.2°C), almost consistent with February. In San Rafael, an average nighttime temperature of 46.9°F (8.3°C) is expected during March.Humidity
The most humid month is March, with an average relative humidity of 77%.Rainfall
In March, the rain falls for 8.8 days. Throughout March, 0.59" (15mm) of precipitation is accumulated. In San Rafael, during the entire year, the rain falls for 48 days and collects up to 3.94" (100mm) of precipitation.Daylight
In March, the average length of the day is 11h and 59min.On the first day of March, sunrise is at 6:40 am and sunset at 6:04 pm PST. On the last day of the month, sunrise is at 6:55 am and sunset at 7:32 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.
Sunshine
In March, the average sunshine in San Rafael is 7.5h.UV index
In San Rafael, the average daily maximum UV index in March is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 4 during March, leads to the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Around midday, solar radiation is most harmful; hence, exposure should be limited. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
San Rafael, CA
- Average high temperature in March: 59.4°F
The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in March: 46.9°F
The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).
Average pressure in March
San Rafael, CA
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in March
San Rafael, CA
- Average wind speed in March: 7.3mph
The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).
Average humidity in March
San Rafael, CA
- Average humidity in March: 77%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).
Average rainfall in March
San Rafael, CA
- Average rainfall in March: 0.59"
The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in March
San Rafael, CA
- Average rainfall days in March: 8.8 days
The month with the highest number of rainy days is March (8.8 days).
The months with the least rainy days are June and August (1.2 days).
Average daylight in March /
Average sunshine in March
San Rafael, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in March: 7h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in March
San Rafael, CA
- Average sunshine days in March: 20.7 days
The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).
Average UV index in March
San Rafael, CA
- Average UV index in March: 4
The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in March
San Rafael, CA
- Average cloud cover in March: 39
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in March
San Rafael, CA
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





