March weather forecastArroyo Grande, CA
March
Weather in March
March, the first month of the spring in Arroyo Grande, is still a refreshing month, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 64.9°F (18.3°C).Temperature
As Arroyo Grande steps into March, the average high-temperature is measured at a still enjoyable 64.9°F (18.3°C), displaying minor differences from February's 62.2°F (16.8°C). In Arroyo Grande, the March nights cool down to an average low of 46.9°F (8.3°C).Humidity
March is the most humid month in Arroyo Grande, California, with an average relative humidity of 68%.Rainfall
March is the month with the most rainfall. Rain falls for 8.4 days and accumulates 1.61" (41mm) of precipitation.Daylight
In Arroyo Grande, the average length of the day in March is 12h and 0min.On the first day of the month, sunrise is at 6:30 am and sunset at 5:58 pm PST. On the last day of March, in Arroyo Grande, California, sunrise is at 6:49 am and sunset at 7:23 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 Arroyo Grande is 8.6h.UV index
The months with the lowest UV index in Arroyo Grande are January through March, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 during March leads to these advisories:
Heed the precautions - It is counselled to guard against solar damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. 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
Arroyo Grande, CA
- Average high temperature in March: 64.9°F
The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in March: 46.9°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 (46°F).
Average pressure in March
Arroyo Grande, CA
- Average pressure in March: 30.06"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in March
Arroyo Grande, CA
- Average wind speed in March: 6.8mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in March
Arroyo Grande, CA
- Average humidity in March: 68%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in March
Arroyo Grande, CA
- Average rainfall in March: 1.61"
The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in March
Arroyo Grande, CA
- Average rainfall days in March: 8.4 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).
Average daylight in March /
Average sunshine in March
Arroyo Grande, 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 months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in March
Arroyo Grande, CA
- Average sunshine days in March: 22.2 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).
Average UV index in March
Arroyo Grande, CA
- Average UV index in March: 4
The months with the highest UV index are June and August (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
Arroyo Grande, CA
- Average cloud cover in March: 27
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in March
Arroyo Grande, 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).





