August weather forecastBrisbane, CA
August
Weather in August
The last month of the summer, August, is another pleasant month in Brisbane, California, with an average temperature ranging between max 69.1°F (20.6°C) and min 56.5°F (13.6°C).Temperature
The arrival of August brings an average high-temperature of a still agreeable 69.1°F (20.6°C), nearly identical to July's 68.9°F (20.5°C). Brisbane's August nights cool down to an average low-temperature of 56.5°F (13.6°C).Humidity
With an average relative humidity of 78%, August is the most humid month in Brisbane, California.Rainfall
June through August are months with the least rain in Brisbane when the rain falls for 1.5 days and typically aggregates up to 0.04" (1mm) of rain.Daylight
In August, the average length of the day 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
The average sunshine in August is 11.5h.UV index
The months with the highest UV index in Brisbane are June through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 5 in August transforms into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Brisbane, CA
- Average high temperature in August: 69.1°F
The warmest month (with the highest average high temperature) is September (70°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in August: 56.5°F
The months with the highest average low temperature are August and September (56.5°F).
The coldest months (with the lowest average low temperature) are January, February and December (47.8°F).
Average pressure in August
Brisbane, 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
Brisbane, CA
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in August
Brisbane, CA
- Average humidity in August: 78%
The month with the highest relative humidity is August (78%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in August
Brisbane, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is February (0.79").
The driest months (with the least rainfall) are June, July and August (0.04").
Average rainfall days in August
Brisbane, CA
- Average rainfall days in August: 1.5 days
The month with the highest number of rainy days is March (9.4 days).
The month with the least rainy days is June (1.1 days).
Average daylight in August /
Average sunshine in August
Brisbane, 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 30min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in August
Brisbane, CA
- Average sunshine days in August: 25 days
The months with the most sunshine days are June, July and September (26.3 days).
The month with the least sunshine days is March (19.4 days).
Average UV index in August
Brisbane, CA
- Average UV index in August: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and December (UV index 3).
Average cloud cover in August
Brisbane, CA
- Average cloud cover in August: 19
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in August
Brisbane, 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).
