August weather forecast
Glenhaven, CA

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Weather in August

The last month of the summer, August, is another tropical month in Glenhaven, California, with temperature in the range of an average low of 57.4°F (14.1°C) and an average high of 89.1°F (31.7°C).

Temperature

Glenhaven records an average high-temperature of a still tropical 89.1°F (31.7°C) in August, maintaining a close correlation with July's 89.6°F (32°C). Glenhaven records a consistent low-temperature average of 57.4°F (14.1°C) during August, indicating a significant difference from the daytime heat.

Heat index

The heat index value for August is appraised at a tropical 91.4°F (33°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

In August, the average relative humidity in Glenhaven, California, is 48%.

Rainfall

In August, the rain falls for 1.3 days. Throughout August, 0.08" (2mm) of precipitation is accumulated. In Glenhaven, during the entire year, the rain falls for 92 days and collects up to 21.02" (534mm) of precipitation.

Snowfall

In Glenhaven, snow does not fall in April through October.

Daylight

In Glenhaven, the average length of the day in August is 13h and 38min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:22 pm. On the last day of August, in Glenhaven, sunrise is at 6:39 am and sunset at 7:42 pm PDT.

Sunshine

In August, the average sunshine is 11.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 6 in August leads to these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

How hot is it in Glenhaven in August?

Glenhaven in August has an average high-temperature of 89.1°F (31.7°C) and an average low-temperature of 57.4°F (14.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 91.4°F (33°C).

What is the average humidity in August in Glenhaven?

The average relative humidity in August in Glenhaven is 48%.

How much does it rain in Glenhaven in August?

In Glenhaven, California, in August, during 1.3 rainfall days, 0.08" (2mm) of precipitation is typically accumulated.

When it does not snow in Glenhaven?

In Glenhaven, snow does not fall in April through October.

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

In August, the average day length is 13h and 38min.

When is the sunrise / sunset in August in Glenhaven?

On the first day of August in Glenhaven, California, sunrise is at 6:12 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:42 pm PDT.

How long on average sun shines in August in Glenhaven?

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

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

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 Glenhaven?

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

Average temperature in August
Glenhaven, CA

Average temperature in August - Glenhaven, CA
  • Average high temperature in August: 89.1°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is December (52.3°F).

  • Average low temperature in August: 57.4°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

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Average pressure in August
Glenhaven, CA

Average pressure in August - Glenhaven, CA
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

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Average wind speed in August
Glenhaven, CA

Average wind speed in August - Glenhaven, CA
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is April (5.3mph).
The calmest month (with the lowest average wind speed) is November (4.1mph).

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Average humidity in August
Glenhaven, CA

Average humidity in August - Glenhaven, CA
  • Average humidity in August: 48%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (47%).

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Average rainfall in August
Glenhaven, CA

Average rainfall in August - Glenhaven, CA
  • Average rainfall in August: 0.08"

The wettest month (with the highest rainfall) is February (4.06").
The driest month (with the least rainfall) is July (0.04").

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Average rainfall days in August
Glenhaven, CA

Average rainfall days in August - Glenhaven, CA
  • Average rainfall days in August: 1.3 days

The month with the highest number of rainy days is March (15.9 days).
The months with the least rainy days are July and August (1.3 days).

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Average snowfall in August
Glenhaven, CA

Average snowfall in August - Glenhaven, CA
  • Average snowfall in August: 0"

The months with the highest snowfall are January and February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Glenhaven, CA

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

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
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 18min).

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Average sunshine days in August
Glenhaven, CA

Average sunshine days in August - Glenhaven, CA
  • Average sunshine days in August: 28.3 days

The months with the most sunshine days are July and August (28.3 days).
The month with the least sunshine days is March (13.7 days).

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Average UV index in August
Glenhaven, CA

Average UV index in August - Glenhaven, 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).

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Average cloud cover in August
Glenhaven, CA

Average cloud cover in August - Glenhaven, CA
  • Average cloud cover in August: 5

The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in August
Glenhaven, CA

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

The months with the highest visibility are January, February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are March and December (5mi).

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Glenhaven, California, USA

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