Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
On the advent of March, Costa Mesa's average high-temperature exhibits a minor adjustment to a still comfortable 64.8°F (18.2°C) from February's 63.3°F (17.4°C). During the nights in March, the temperature averages to a cool 53.4°F (11.9°C).Humidity
In Costa Mesa, California, the average relative humidity in March is 67%.Rainfall
In March, in Costa Mesa, the rain falls for 6.6 days. Throughout March, 0.43" (11mm) of precipitation is accumulated. Throughout the year, in Costa Mesa, there are 50.7 rainfall days, and 3.74" (95mm) of precipitation is accumulated.Daylight
The average length of the day in March in Costa Mesa is 12h and 0min.On the first day of the month, sunrise is at 6:18 am and sunset at 5:48 pm PST. On the last day of March, in Costa Mesa, California, sunrise is at 6:39 am and sunset at 7:11 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 8.7h.UV index
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Costa Mesa. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 4 in March translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average March temperature in Costa Mesa?
What is the average humidity in March in Costa Mesa?
How many days does it rain in March in Costa Mesa?
How many hours of daylight does Costa Mesa have in March?
What time are sunrise and sunset in March in Costa Mesa?
When does Daylight Saving Time (DST) start in March in Costa Mesa?
How many hours of sunshine does Costa Mesa have in March?
When is the lowest UV index in Costa Mesa?
What is the UV index reading in March in Costa Mesa?
Average temperature in March
Costa Mesa, CA
- Average high temperature in March: 64.8°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in March: 53.4°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (52.3°F).
Average pressure in March
Costa Mesa, CA
- Average pressure in March: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in March
Costa Mesa, CA
- Average wind speed in March: 6.2mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is October (5.2mph).
Average humidity in March
Costa Mesa, CA
- Average humidity in March: 67%
The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (59%).
Average rainfall in March
Costa Mesa, CA
- Average rainfall in March: 0.43"
The wettest month (with the highest rainfall) is December (0.79").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in March
Costa Mesa, CA
- Average rainfall days in March: 6.6 days
The month with the highest number of rainy days is March (6.6 days).
The month with the least rainy days is June (1.6 days).
Average daylight in March /
Average sunshine in March
Costa Mesa, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in March: 8h and 4min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in March
Costa Mesa, CA
- Average sunshine days in March: 22.8 days
The month with the most sunshine days is June (26.5 days).
The month with the least sunshine days is February (20.5 days).
Average UV index in March
Costa Mesa, 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
Costa Mesa, CA
- Average cloud cover in March: 24
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in March
Costa Mesa, 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).
Costa Mesa, California, USA
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