July weather forecastHalf Moon Bay, CA
July
Weather in July
July, like June, in Half Moon Bay, California, is another refreshing summer month, with an average temperature varying between 65.1°F (18.4°C) and 54.3°F (12.4°C).Temperature
During July, Half Moon Bay records an average high-temperature of a still comfortable 65.1°F (18.4°C), marking a slight divergence from June's 63.7°F (17.6°C). Half Moon Bay registers a consistent average low-temperature of 54.3°F (12.4°C) during July.Humidity
The average relative humidity in July is 81%.Rainfall
The months with the least rainfall are June and July Rain falls for 4.4 days and accumulates 0.12" (3mm) of rain.Daylight
The average length of the day in July is 14h and 27min.On the first day of July in Half Moon Bay, sunrise is at 5:52 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:18 pm PDT.
Sunshine
The month with the most sunshine is July, with an average of 11.4h of sunshine.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 medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 4 in July translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Half Moon Bay, CA
- Average high temperature in July: 65.1°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 July: 54.3°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 July
Half Moon Bay, CA
- Average pressure in July: 29.94"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 July
Half Moon Bay, CA
- Average wind speed in July: 6.7mph
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 July
Half Moon Bay, CA
- Average humidity in July: 81%
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 July
Half Moon Bay, CA
- Average rainfall in July: 0.12"
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 July
Half Moon Bay, CA
- Average rainfall days in July: 4.4 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 July /
Average sunshine in July
Half Moon Bay, CA
- Average daylight in July: 14h and 24min
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 July: 11h and 24min
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 July
Half Moon Bay, CA
- Average sunshine days in July: 21.8 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 July
Half Moon Bay, CA
- Average UV index in July: 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 July
Half Moon Bay, CA
- Average cloud cover in July: 21
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 July
Half Moon Bay, CA
- Average visibility in July: 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).
