August weather forecast
Visalia, CA

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Weather in August

August carries forward the heat from July with temperatures potentially reaching up to 99.7°F (37.6°C). This period is popular for pool parties and barbecues, with residents and visitors seeking fun ways to cool off. The extended daylight hours diminish gradually, signaling the nearing end of summer. While the mornings start getting cooler, the heat of the day sticks around for a little longer. Moving outdoors after sunset becomes a daily habit for those wanting to experience the nighttime skyline, ablaze with stars.

Temperature

Visalia notes an average high-temperature of a still fiery hot 99.7°F (37.6°C) in August, displaying minor variation from July. Throughout August, Visalia notes a dramatic plunge from the daily high to an average low-temperature of 64°F (17.8°C).

Humidity

The months with the lowest humidity are July and August, with an average relative humidity of 31%.

Rainfall

The month with the least rainfall is August, when the rain falls for 1 days and typically collects 0.08" (2mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

In August, the average length of the day is 13h and 30min.
On the first day of the month, sunrise is at 6:04 am and sunset at 8:02 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:25 pm PDT.

Sunshine

In August, the average sunshine is 12.1h.

UV index

In August, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during August translates into the following guidance:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In August, in Visalia, the average high-temperature is 99.7°F (37.6°C), and the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in May is appraised at 80.6°F (27°C).

What are the least humid months?

The months with the lowest humidity are July and August, with an average relative humidity of 31%.

What is the average humidity in August?

The average relative humidity in August is 31%.

What is the driest month?

The month with the least rainfall is August, when the rain falls for 1 days and typically collects 0.08" (2mm) of precipitation.

How many days does it rain in August?

In Visalia, during August, the rain falls for 1 days and regularly aggregates up to 0.08" (2mm) of precipitation.

When it does not snow?

January, March through December are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 30min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:25 pm PDT.

How many hours of sunshine does Visalia have in August?

In Visalia, the average sunshine duration in August is 12.1h.

What is the UV index reading in August?

The average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Visalia, CA

Average temperature in August - Visalia, CA
  • Average high temperature in August: 99.7°F

The warmest month (with the highest average high temperature) is July (100.6°F).
The month with the lowest average high temperature is December (56.7°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is December (41.5°F).

Average pressure in August
Visalia, CA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in August
Visalia, CA

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

The windiest month (with the highest average wind speed) is June (5.4mph).
The calmest month (with the lowest average wind speed) is December (3.8mph).

Average humidity in August
Visalia, CA

Average humidity in August - Visalia, CA
  • Average humidity in August: 31%

The month with the highest relative humidity is January (67%).
The months with the lowest relative humidity are July and August (31%).

Average rainfall in August
Visalia, CA

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

The wettest month (with the highest rainfall) is March (2.32").
The driest month (with the least rainfall) is August (0.08").

Average rainfall days in August
Visalia, CA

Average rainfall days in August - Visalia, CA
  • Average rainfall days in August: 1 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (1 days).

Average snowfall days in August
Visalia, CA

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

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

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

Average daylight in August / Average sunshine in August - Visalia, CA
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 12h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in August
Visalia, CA

Average sunshine days in August - Visalia, CA
  • Average sunshine days in August: 28.4 days

The month with the most sunshine days is August (28.4 days).
The month with the least sunshine days is March (19.8 days).

Average UV index in August
Visalia, CA

Average UV index in August - Visalia, CA
  • Average UV index in August: 7

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 3).

Average cloud cover in August
Visalia, CA

Average cloud cover in August - Visalia, CA
  • Average cloud cover in August: 4

The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 4).

Average visibility in August
Visalia, CA

Average visibility in August - Visalia, 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).

Visalia, California, USA

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