March weather forecastSwansea, CA
March
Weather in March
The first month of the spring, March, is a cool month in Swansea, California, with an average temperature ranging between min 38.5°F (3.6°C) and max 54.9°F (12.7°C).Temperature
The shift into March uncovers an average high-temperature of a cool 54.9°F (12.7°C), subtly different from the previous month. The average low-temperature of 38.5°F (3.6°C) is witnessed during March.Humidity
The average relative humidity in March is 39%.Rainfall
In Swansea, in March, during 5.7 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Swansea, there are 48 rainfall days, and 4.92" (125mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Swansea, California, in March, during 0.3 snowfall days, 0.04" (1mm) of snow is typically accumulated. Throughout the year, there are 4.5 snowfall days, and 3.07" (78mm) of snow is accumulated.Daylight
In Swansea, the average length of the day in March is 11h and 59min.On the first day of March, sunrise is at 6:20 am and sunset at 5:46 pm PST. On the last day of the month, sunrise is at 6:37 am and sunset at 7:13 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
The average sunshine in March is 9.4h.UV index
The average daily maximum UV index in March in Swansea is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 4 in March leads to these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Swansea, CA
- Average high temperature in March: 54.9°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (46.9°F).
- Average low temperature in March: 38.5°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is December (31.5°F).
Average pressure in March
Swansea, CA
- Average pressure in March: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in March
Swansea, CA
- Average wind speed in March: 7.2mph
The windiest months (with the highest average wind speed) are April, May and June (7.6mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).
Average humidity in March
Swansea, CA
- Average humidity in March: 39%
The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is August (19%).
Average rainfall in March
Swansea, CA
- Average rainfall in March: 0.59"
The wettest month (with the highest rainfall) is December (0.67").
The driest months (with the least rainfall) are June and September (0.16").
Average rainfall days in March
Swansea, CA
- Average rainfall days in March: 5.7 days
The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is September (2.3 days).
Average snowfall in March
Swansea, CA
- Average snowfall in March: 0.04"
The month with the highest snowfall is December (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Swansea, CA
- Average snowfall days in March: 0.3 days
The month with the highest number of snowfall days is December (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
Swansea, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in March: 9h and 24min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 18min).
Average sunshine days in March
Swansea, CA
- Average sunshine days in March: 24.3 days
The month with the most sunshine days is October (27.7 days).
The month with the least sunshine days is July (20 days).
Average UV index in March
Swansea, CA
- Average UV index in March: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).
Average cloud cover in March
Swansea, CA
- Average cloud cover in March: 15
The month with the most cloud cover is January (Cloud cover 16).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in March
Swansea, 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).





