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
In August, the average high-temperature registers at a still very hot 97.3°F (36.3°C), nearly identical to July's 98.6°F (37°C). In Atwater, the August nights descend to a significantly cooler average of 63.3°F (17.4°C) compared to daytime highs.Humidity
In Atwater, the average relative humidity in August is 37%.Rainfall
The months with the least rainfall are June through September Rain falls for 1.1 days and accumulates 0.04" (1mm) of rain.Daylight
In August, the average length of the day in Atwater is 13h and 33min.On the first day of August, sunrise is at 6:07 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:32 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 estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In August, an average UV index of 7 transforms into the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Atwater in August?
What is the average humidity in August?
What is the driest month?
How many days does it rain in August in Atwater?
How many hours of daylight does Atwater have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Atwater have in August?
When is the highest UV index in Atwater?
How high is the UV index in August?
Average temperature in August
Atwater, CA
- Average high temperature in August: 97.3°F
The warmest month (with the highest average high temperature) is July (98.6°F).
The month with the lowest average high temperature is December (56.1°F).
- Average low temperature in August: 63.3°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in August
Atwater, CA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Atwater, CA
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in August
Atwater, CA
- Average humidity in August: 37%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is July (34%).
Average rainfall in August
Atwater, CA
- Average rainfall in August: 0.04"
The wettest months (with the highest rainfall) are March and December (0.55").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in August
Atwater, CA
- Average rainfall days in August: 1.1 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (0.5 days).
Average daylight in August /
Average sunshine in August
Atwater, 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: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in August
Atwater, CA
- Average sunshine days in August: 28.9 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is February (23 days).
Average UV index in August
Atwater, 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, February, November and December (UV index 3).
Average cloud cover in August
Atwater, CA
- Average cloud cover in August: 5
The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in August
Atwater, 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).
Atwater, California, USA
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