August weather forecast
Forestville, CA

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Weather in August

The last month of the summer, August, is another warm month in Forestville, California, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 83.5°F (28.6°C).

Temperature

The warmest period is August, when temperatures fluctuate between an average high of 83.5°F (28.6°C) and a low of 54.3°F (12.4°C).

Heat index

August's heat index is computed to be a hot 87.8°F (31°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

In August, the average relative humidity is 62%.

Rainfall

July and August are months with the least rain when the rain falls for 1.1 days and typically aggregates up to 0.04" (1mm) of rain.

Daylight

The average length of the day in August is 13h and 37min.
On the first day of August, sunrise is at 6:14 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:42 pm PDT.

Sunshine

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

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

Forestville experiences its average highest temperatures in August, reaching a peak of 83.5°F (28.6°C) and a minimum of 54.3°F (12.4°C).

How hot is August?

The high-temperature, in August, in Forestville, is 83.5°F (28.6°C), while the low-temperature averages to 54.3°F (12.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 87.8°F (31°C).

What is the average humidity in August?

In Forestville, California, the average relative humidity in August is 62%.

What is the driest month?

July and August are months with the least rain in Forestville when the rain falls for 1.1 days and typically aggregates up to 0.04" (1mm) of rain.

How many days does it rain in August?

In Forestville, in August, it is raining for 1.1 days, with typically 0.04" (1mm) of accumulated precipitation.

How many hours of daylight does Forestville have in August?

In August, the average day length is 13h and 37min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:14 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:42 pm PDT.

How many hours of sunshine does Forestville have in August?

In Forestville, California, the average sunshine duration in August is 11.9h.

What is the month with the highest UV index?

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 August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Forestville, CA

Average temperature in August - Forestville, CA
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (55.8°F).

  • Average low temperature in August: 54.3°F

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).

Average pressure in August
Forestville, CA

Average pressure in August - Forestville, 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).

Average wind speed in August
Forestville, CA

Average wind speed in August - Forestville, CA
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is May (6.4mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

Average humidity in August
Forestville, CA

Average humidity in August - Forestville, CA
  • Average humidity in August: 62%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (58%).

Average rainfall in August
Forestville, CA

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

The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in August
Forestville, CA

Average rainfall days in August - Forestville, CA
  • Average rainfall days in August: 1.1 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1 days).

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

Average daylight in August / Average sunshine in August - Forestville, 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: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in August
Forestville, CA

Average sunshine days in August - Forestville, CA
  • Average sunshine days in August: 28.9 days

The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (15.3 days).

Average UV index in August
Forestville, CA

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

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

Average cloud cover in August
Forestville, CA

Average cloud cover in August - Forestville, CA
  • Average cloud cover in August: 9

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 8).

Average visibility in August
Forestville, CA

Average visibility in August - Forestville, 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).

Forestville, California, USA

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