August weather forecastBelvedere, CA
August
Weather in August
The last month of the summer, August, is another pleasant month in Belvedere, California, with an average temperature varying between 70.5°F (21.4°C) and 56.1°F (13.4°C).Temperature
The arrival of August brings an average high-temperature of a still pleasant 70.5°F (21.4°C), subtly diverging from July's 70.3°F (21.3°C). During August, Belvedere observes a consistent average nighttime temperature of 56.1°F (13.4°C).Humidity
The months with the highest humidity are March and August, with an average relative humidity of 76%.Rainfall
The months with the least rainfall are June through September Rain falls for 3.5 days and accumulates 0.08" (2mm) of rain.Ocean temperature
In Belvedere, the average seawater temperature in August is 56.7°F (13.7°C).Note: Being in 56.7°F (13.7°C) waters at 55.4°F (13°C) is discomforting, but anything below 50°F (10°C) can jeopardize breathing and induce cold shock, factoring in physical endurance.
Daylight
In August, the average length of the day is 13h and 35min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:40 pm PDT.
Sunshine
In August, the average sunshine is 11.2h.UV index
The months with the highest UV index are April, June through September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Belvedere, CA
- Average high temperature in August: 70.5°F
The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.2°F).
- Average low temperature in August: 56.1°F
The month with the highest average low temperature is September (56.5°F).
The coldest months (with the lowest average low temperature) are January and December (46.2°F).
Average pressure in August
Belvedere, CA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in August
Belvedere, CA
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are October and November (5.7mph).
Average humidity in August
Belvedere, CA
- Average humidity in August: 76%
The months with the highest relative humidity are March and August (76%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Belvedere, CA
- Average rainfall in August: 0.08"
The wettest month (with the highest rainfall) is February (0.98").
The driest months (with the least rainfall) are June, July, August and September (0.08").
Average rainfall days in August
Belvedere, CA
- Average rainfall days in August: 3.5 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is June (1.9 days).
Average sea temperature in August
Belvedere, CA
- Average sea temperature in August: 56.7°F
The best month for swimming (with the highest average sea temperature) is September (57.3°F).
The coldest months (with the lowest average sea temperature) are April and June (53°F).
Average daylight in August /
Average sunshine in August
Belvedere, CA
- Average daylight in August: 13h and 36min
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 12min
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
Belvedere, CA
- Average sunshine days in August: 22.1 days
The month with the most sunshine days is October (25 days).
The month with the least sunshine days is March (18.4 days).
Average UV index in August
Belvedere, CA
- Average UV index in August: 5
The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
Belvedere, CA
- Average cloud cover in August: 22
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
Belvedere, 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).
