August weather forecastSan Joaquin, CA
August
Weather in August
The last month of the summer, August, is another torrid month in San Joaquin, California, with an average temperature varying between 99.9°F (37.7°C) and 66.6°F (19.2°C).Temperature
August's average high-temperature is a still fiery hot 99.9°F (37.7°C), maintaining a close comparison with July's 100.9°F (38.3°C). San Joaquin endures a clear shift from daytime heat to a mean low-temperature of 66.6°F (19.2°C) during August nights.Humidity
The average relative humidity in August is 31%.Rainfall
June through September are months with the least rain when the rain falls for 0.5 days and typically aggregates up to 0.04" (1mm) of rain.Daylight
The average length of the day in August is 13h and 31min.On the first day of the month, sunrise is at 6:07 am and sunset at 8:06 pm. On the last day of August, sunrise is at 6:31 am and sunset at 7:29 pm PDT.
Sunshine
In August, the average sunshine is 12h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: In August, a daily UV index of 7 turns into the following recommendations:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
San Joaquin, CA
- Average high temperature in August: 99.9°F
The warmest month (with the highest average high temperature) is July (100.9°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in August: 66.6°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is December (42.6°F).
Average pressure in August
San Joaquin, CA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
San Joaquin, CA
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in August
San Joaquin, CA
- Average humidity in August: 31%
The months with the highest relative humidity are January and December (66%).
The month with the lowest relative humidity is July (30%).
Average rainfall in August
San Joaquin, CA
- Average rainfall in August: 0.04"
The wettest months (with the highest rainfall) are February and March (0.43").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in August
San Joaquin, CA
- Average rainfall days in August: 0.5 days
The month with the highest number of rainy days is March (7 days).
The months with the least rainy days are August and September (0.5 days).
Average daylight in August /
Average sunshine in August
San Joaquin, CA
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 24min).
Average sunshine days in August
San Joaquin, CA
- Average sunshine days in August: 29.7 days
The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is February (22 days).
Average UV index in August
San Joaquin, CA
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in August
San Joaquin, CA
- Average cloud cover in August: 4
The month with the most cloud cover is March (Cloud cover 29).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in August
San Joaquin, 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).
