Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The advent of August denotes an average high-temperature of a still comfortable 65.8°F (18.8°C), subtly different from July's 65.1°F (18.4°C). An average minimum temperature of 55.9°F (13.3°C) is recorded during the month of August.Humidity
The most humid month is August, with an average relative humidity of 82%.Rainfall
In Half Moon Bay, in August, during 5.3 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Half Moon Bay, during the entire year, the rain falls for 76.8 days and collects up to 8.54" (217mm) of precipitation.Daylight
The average length of the day in August is 13h and 34min.On the first day of the month, sunrise is at 6:14 am and sunset at 8:17 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:39 pm PDT.
Sunshine
In Half Moon Bay, the average sunshine in August is 11.2h.UV index
June, August and September, with an average maximum UV index of 5, are months with the highest UV index in Half Moon Bay, California. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures?
What is the most humid month?
What is the average humidity in August?
How much does it rain in August?
How many hours of daylight does Half Moon Bay have in August?
When are sunrise and sunset in August?
How long on average sun shines in August?
What are the months with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Half Moon Bay, CA
- Average high temperature in August: 65.8°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 August: 55.9°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 August
Half Moon Bay, CA
- Average pressure in August: 29.93"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 August
Half Moon Bay, CA
- Average wind speed in August: 6.6mph
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 August
Half Moon Bay, CA
- Average humidity in August: 82%
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 August
Half Moon Bay, CA
- Average rainfall in August: 0.16"
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 August
Half Moon Bay, CA
- Average rainfall days in August: 5.3 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 August /
Average sunshine in August
Half Moon Bay, CA
- Average daylight in August: 13h and 4min
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 August: 11h and 1min
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 August
Half Moon Bay, CA
- Average sunshine days in August: 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 August
Half Moon Bay, CA
- Average UV index in August: 5
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 August
Half Moon Bay, CA
- Average cloud cover in August: 23
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 August
Half Moon Bay, CA
- Average visibility in August: 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).
Half Moon Bay, California, USA
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