March weather forecastMorro Bay, CA

March
Weather in March
March, the first month of the spring in Morro Bay, is a refreshing month, with an average temperature ranging between max 62.6°F (17°C) and min 47.8°F (8.8°C).Temperature
At the onset of March, Morro Bay records an average high-temperature of a still refreshing 62.6°F (17°C), showing little deviation from the preceding month. Morro Bay, in March, witnesses an average low-temperature of 47.8°F (8.8°C).Humidity
March is the most humid month, with an average relative humidity of 70%.Rainfall
In Morro Bay, in March, it is raining for 10.3 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, there are 53.7 rainfall days, and 8.58" (218mm) of precipitation is accumulated.Ocean temperature
In March, the average ocean temperature is 55.4°F (13°C).Note: With an efficient thermal swimsuit, one can navigate 55.4°F (13°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.
Daylight
In Morro Bay, the average length of the day in March is 12h and 0min.On the first day of March, sunrise is at 6:31 am and sunset at 5:59 pm PST. On the last day of the month, sunrise is at 6:50 am and sunset at 7:24 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 Morro Bay, the average sunshine in March is 8.6h.UV index
January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 4 in March translates into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Morro Bay, CA
- Average high temperature in March: 62.6°F
The warmest month (with the highest average high temperature) is September (76.3°F).
The month with the lowest average high temperature is December (59.2°F).
- Average low temperature in March: 47.8°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (47.3°F).
Average pressure in March
Morro Bay, CA
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June and September (29.91"Hg).
Average wind speed in March
Morro Bay, CA
- Average wind speed in March: 7.3mph
The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (6mph).
Average humidity in March
Morro Bay, CA
- Average humidity in March: 70%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are September and October (61%).
Average rainfall in March
Morro Bay, CA
- Average rainfall in March: 1.73"
The wettest month (with the highest rainfall) is January (1.81").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in March
Morro Bay, CA
- Average rainfall days in March: 10.3 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.7 days).
Average sea temperature in March
Morro Bay, CA
- Average sea temperature in March: 55.3°F
The best months for swimming (with the highest average sea temperature) are August and October (58.6°F).
The coldest month (with the lowest average sea temperature) is April (54.3°F).
Average daylight in March /
Average sunshine in March
Morro Bay, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in March: 8h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in March
Morro Bay, CA
- Average sunshine days in March: 20.5 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.1 days).
Average UV index in March
Morro Bay, CA
- Average UV index in March: 4
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in March
Morro Bay, CA
- Average cloud cover in March: 28
The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 7).
Average visibility in March
Morro Bay, 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).





