August weather forecast
Windsor, CA

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Weather in August

August, the last month of the summer in Windsor, is also a moderately hot month, with an average temperature ranging between min 54.3°F (12.4°C) and max 83.5°F (28.6°C).

Temperature

Windsor experiences its highest temperatures in August, with an average peak of 83.5°F (28.6°C) and a low of 54.3°F (12.4°C).

Heat index

For most parts of August, the heat index is evaluated at a tropical 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In August, the average relative humidity is 62%.

Rainfall

The months with the least rainfall are July and August Rain falls for 1.1 days and accumulates 0.04" (1mm) of rain.

Daylight

In August, the average length of the day is 13h and 37min.
On the first day of August, sunrise is at 6:13 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 August, the average sunshine in Windsor is 11.9h.

UV index

The months with the highest UV index in Windsor, California, are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

August tends to be the warmest month, with temperatures averaging a daily high of 83.5°F (28.6°C) and a low of 54.3°F (12.4°C).

Is it hot during August?

In Windsor, in August, the average high-temperature is 83.5°F (28.6°C), and the average low-temperature is 54.3°F (12.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is evaluated at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 62%.

What is the driest month?

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.

How many days does it rain in August?

In August, the rain falls for 1.1 days. Throughout August, 0.04" (1mm) of precipitation is accumulated.

How many hours of daylight does Windsor have in August?

The average day length in August is 13h and 37min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:13 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 long on average sun shines in August?

The average sunshine duration in August is 11.9h.

What are the months with the highest UV index?

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

What is the UV index reading in August?

In August, the average daily maximum UV index in Windsor, California, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Windsor, CA

Average temperature in August - Windsor, 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
Windsor, CA

Average pressure in August - Windsor, 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
Windsor, CA

Average wind speed in August - Windsor, 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
Windsor, CA

Average humidity in August - Windsor, 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
Windsor, CA

Average rainfall in August - Windsor, 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
Windsor, CA

Average rainfall days in August - Windsor, 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
Windsor, CA

Average daylight in August / Average sunshine in August - Windsor, 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
Windsor, CA

Average sunshine days in August - Windsor, 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
Windsor, CA

Average UV index in August - Windsor, 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
Windsor, CA

Average cloud cover in August - Windsor, 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
Windsor, CA

Average visibility in August - Windsor, 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).

Windsor, California, USA

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