August weather forecast
Rohnert Park, CA

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Rohnert Park, California, with an average temperature varying between 55°F (12.8°C) and 79.9°F (26.6°C).

Temperature

Rohnert Park's warmest season falls during July and August, averaging a high-temperature of 79.9°F (26.6°C).

Humidity

In August, the average relative humidity in Rohnert Park, California, is 67%.

Rainfall

June through September are months with the least rain in Rohnert Park, California, when the rain falls for 0.5 days and typically aggregates up to 0.04" (1mm) of rain.

Daylight

In Rohnert Park, the average length of the day in August is 13h and 36min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:40 am and sunset at 7:41 pm PDT.

Sunshine

In Rohnert Park, the average sunshine in August is 11.8h.

UV index

In Rohnert Park, California, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 5 during August leads to these instructions:
Exercise prevention - Warding off sunburn is urged. To guard against the harmful effects of the Sun, minimize exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
[Resources]

Frequently asked questions

What are the warmest months in Rohnert Park?

July and August bring Rohnert Park's average highest temperatures, reaching a high of 79.9°F (26.6°C).

What is the usual temperature for Rohnert Park in August?

The high-temperature, in August, in Rohnert Park, is 79.9°F (26.6°C), while the low-temperature averages to 55°F (12.8°C).

What is the average humidity in August in Rohnert Park?

In Rohnert Park, the average relative humidity in August is 67%.

What is the driest month in Rohnert Park?

June through September are months with the least rain in Rohnert Park, California, when the rain falls for 0.5 days and typically aggregates up to 0.04" (1mm) of rain.

How much does it rain in Rohnert Park in August?

In August, the rain falls for 0.5 days. Throughout August, 0.04" (1mm) of precipitation is accumulated.

What is the average length of the day in August in Rohnert Park?

In Rohnert Park, California, the average day length in August is 13h and 36min.

When is the sunrise / sunset in August in Rohnert Park?

In August, on the first day of the month, sunrise is at 6:13 am and sunset at 8:20 pm. On the last day of the month, in Rohnert Park, sunrise is at 6:40 am and sunset at 7:41 pm PDT.

How many hours of sunshine does Rohnert Park have in August?

In Rohnert Park, California, the average sunshine duration in August is 11.8h.

What is the UV index reading in August in Rohnert Park?

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Rohnert Park, CA

Average temperature in August - Rohnert Park, CA
  • Average high temperature in August: 79.9°F

The warmest months (with the highest average high temperature) are July and August (79.9°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in August: 55°F

The months with the highest average low temperature are August and September (55°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).

[Resources]

Average pressure in August
Rohnert Park, CA

Average pressure in August - Rohnert Park, 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).

[Resources]

Average wind speed in August
Rohnert Park, CA

Average wind speed in August - Rohnert Park, CA
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

[Resources]

Average humidity in August
Rohnert Park, CA

Average humidity in August - Rohnert Park, CA
  • Average humidity in August: 67%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).

[Resources]

Average rainfall in August
Rohnert Park, CA

Average rainfall in August - Rohnert Park, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is February (0.91").
The driest months (with the least rainfall) are June, July, August and September (0.04").

[Resources]

Average rainfall days in August
Rohnert Park, CA

Average rainfall days in August - Rohnert Park, CA
  • Average rainfall days in August: 0.5 days

The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (0.5 days).

[Resources]

Average daylight in August /
Average sunshine in August
Rohnert Park, CA

Average daylight in August / Average sunshine in August - Rohnert Park, CA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

[Resources]

Average sunshine days in August
Rohnert Park, CA

Average sunshine days in August - Rohnert Park, CA
  • Average sunshine days in August: 27.1 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is March (20.8 days).

[Resources]

Average UV index in August
Rohnert Park, CA

Average UV index in August - Rohnert Park, CA
  • Average UV index in August: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

[Resources]

Average cloud cover in August
Rohnert Park, CA

Average cloud cover in August - Rohnert Park, CA
  • Average cloud cover in August: 10

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 9).

[Resources]

Average visibility in August
Rohnert Park, CA

Average visibility in August - Rohnert Park, 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).

[Resources]

Rohnert Park, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location