August weather forecast
Oakley, CA

Weather in August

The last month of the summer, August, is another tropical month in Oakley, California, with average temperature fluctuating between 57.4°F (14.1°C) and 87.4°F (30.8°C).

Temperature

In Oakley, the average high-temperature is relatively the same as in July - a still hot 87.4°F (30.8°C). In August, the average low-temperature is 57.4°F (14.1°C).

Heat index

The average heat index is computed to be a tropical 92.3°F (33.5°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, differences in body mass, height, and shape, wind). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In August, the average relative humidity in Oakley, California, is 56%.

Rainfall

Months with the least rainfall in Oakley, California, are July and August Rain falls for 0.8 days and accumulates 0.04" (1mm) of rain.

Snowfall

In Oakley snow does not fall in January through November.

Daylight

The average length of the day in August is 13.6h.

Sunshine

In August, the average sunshine in Oakley is 11.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Oakley. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in August in Oakley?

In Oakley, California, in August, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 57.4°F (14.1°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 92.3°F (33.5°C).

What is the average humidity in August in Oakley?

In August, the average relative humidity is 56%.

What is the driest month in Oakley?

July and August are months with the least rain in Oakley when the rain falls for 0.8 days and typically aggregates up to 0.04" (1mm) of rain.

How many days does it rain in August in Oakley?

In Oakley, during August, the rain falls for 0.8 days and regularly aggregates up to 0.04" (1mm) of precipitation.

When it does not snow in Oakley?

January through November are months without snowfall.

What is the average length of the day in August in Oakley?

In Oakley, the average length of the day in August is 13.6h.

How long on average sun shines in August in Oakley?

The average sunshine in August in Oakley is 11.9h.

What is the month with the highest UV index in Oakley?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in August in Oakley?

The average daily maximum UV index in August in Oakley, California, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in August
Oakley, CA

Average temperature in August - Oakley, CA
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in August: 57.4°F

The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

[Resources]

Average pressure in August
Oakley, CA

Average pressure in August - Oakley, CA
  • Average pressure in August: 29.92"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.91").

[Resources]

Average wind speed in August
Oakley, CA

Average wind speed in August - Oakley, CA
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

[Resources]

Average humidity in August
Oakley, CA

Average humidity in August - Oakley, CA
  • Average humidity in August: 56%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).

[Resources]

Average rainfall in August
Oakley, CA

Average rainfall in August - Oakley, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").

[Resources]

Average rainfall days in August
Oakley, CA

Average rainfall days in August - Oakley, CA
  • Average rainfall days in August: 0.8 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).

[Resources]

Average snowfall days in August
Oakley, CA

Average snowfall days in August - Oakley, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Oakley, CA

Average daylight in August / Average sunshine in August - Oakley, CA
  • Average daylight in August: 13.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in August: 11.9h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

[Resources]

Average sunshine days in August
Oakley, CA

Average sunshine days in August - Oakley, CA
  • Average sunshine days in August: 29.8 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).

[Resources]

Average UV index in August
Oakley, CA

Average UV index in August - Oakley, CA
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

[Resources]

Average cloud cover in August
Oakley, CA

Average cloud cover in August - Oakley, CA
  • Average cloud cover in August: 7

Months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).

[Resources]

Average visibility in August
Oakley, CA

Average visibility in August - Oakley, CA
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location