March weather forecastHalf Moon Bay, CA
March
Weather in March
The first month of the spring, March, is also a moderate month in Half Moon Bay, California, with an average temperature varying between 57.7°F (14.3°C) and 49.3°F (9.6°C).Temperature
The weather during March records an average high-temperature of a still moderate 57.7°F (14.3°C), closely mirroring the preceding month. A consistent average low-temperature of 49.3°F (9.6°C), with a minor variance from the daytime highs, is noted during the nights of March.Humidity
The average relative humidity in March is 77%.Rainfall
In Half Moon Bay, in March, during 10.8 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 76.8 rainfall days, and 8.54" (217mm) of precipitation is accumulated.Daylight
In March, the average length of the day is 11h and 59min.On the first day of March, sunrise is at 6:39 am and sunset at 6:04 pm PST. On the last day of the month, sunrise is at 6:55 am and sunset at 7:32 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 Half Moon Bay is 7.7h.UV index
January through May, July, October through 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 moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In March, the UV index of 4 transforms into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Half Moon Bay, CA
- Average high temperature in March: 57.7°F
The warmest month (with the highest average high temperature) is September (66.9°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in March: 49.3°F
The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).
Average pressure in March
Half Moon Bay, CA
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in March
Half Moon Bay, CA
- Average wind speed in March: 9.1mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in March
Half Moon Bay, CA
- Average humidity in March: 77%
The month with the highest relative humidity is August (82%).
The months with the lowest relative humidity are November and December (72%).
Average rainfall in March
Half Moon Bay, CA
- Average rainfall in March: 1.38"
The wettest month (with the highest rainfall) is February (1.61").
The driest months (with the least rainfall) are June and July (0.12").
Average rainfall days in March
Half Moon Bay, CA
- Average rainfall days in March: 10.8 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is June (3 days).
Average daylight in March /
Average sunshine in March
Half Moon Bay, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in March: 7h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in March
Half Moon Bay, CA
- Average sunshine days in March: 18.8 days
The month with the most sunshine days is October (24.6 days).
The months with the least sunshine days are March and August (18.8 days).
Average UV index in March
Half Moon Bay, CA
- Average UV index in March: 4
The months with the highest UV index are June, August and September (UV index 5).
The months with the lowest UV index are January, February, March, April, May, July, October, November and December (UV index 4).
Average cloud cover in March
Half Moon Bay, CA
- Average cloud cover in March: 38
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in March
Half Moon 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).
