March weather forecastOceanside, CA

March
Weather in March
The first month of the spring, March, is still a comfortable month in Oceanside, California, with an average temperature ranging between min 51.3°F (10.7°C) and max 64.6°F (18.1°C).Temperature
Transitioning into March, Oceanside records an average high-temperature of a still enjoyable 64.6°F (18.1°C), almost identical to February's 63.1°F (17.3°C). During the nights in March, Oceanside observes an average low-temperature of 51.3°F (10.7°C).Humidity
In March, the average relative humidity is 69%.Rainfall
In Oceanside, in March, during 8 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, in Oceanside, California, there are 68.2 rainfall days, and 9.49" (241mm) of precipitation is accumulated.Ocean temperature
In Oceanside, the average seawater temperature in March is 59°F (15°C).Note: In water with a temperature of 59°F (15°C), most individuals do not find swimming enjoyable. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), breathing control becomes more difficult.
Daylight
In Oceanside, the average length of the day in March is 12h and 0min.On the first day of March in Oceanside, sunrise is at 6:16 am and sunset at 5:46 pm PST. On the last day of the month, sunrise is at 6:37 am and sunset at 7:09 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 in Oceanside is 8.7h.UV index
The months with the lowest UV index in Oceanside are January through March, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 4 in March leads to these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Oceanside, CA
- Average high temperature in March: 64.6°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in March: 51.3°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).
Average pressure in March
Oceanside, CA
- Average pressure in March: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in March
Oceanside, CA
- Average wind speed in March: 5.6mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in March
Oceanside, CA
- Average humidity in March: 69%
The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (60%).
Average rainfall in March
Oceanside, CA
- Average rainfall in March: 0.94"
The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in March
Oceanside, CA
- Average rainfall days in March: 8 days
The month with the highest number of rainy days is March (8 days).
The month with the least rainy days is June (2.7 days).
Average sea temperature in March
Oceanside, CA
- Average sea temperature in March: 59.1°F
The best month for swimming (with the highest average sea temperature) is August (68°F).
The coldest months (with the lowest average sea temperature) are January and February (58.7°F).
Average daylight in March /
Average sunshine in March
Oceanside, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in March: 8h and 42min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in March
Oceanside, CA
- Average sunshine days in March: 21.2 days
The month with the most sunshine days is October (24.2 days).
The month with the least sunshine days is February (20 days).
Average UV index in March
Oceanside, CA
- Average UV index in March: 4
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in March
Oceanside, CA
- Average cloud cover in March: 24
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in March
Oceanside, 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).





