August weather forecast
Granite Hills, CA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Granite Hills, California, with temperature in the range of an average low of 65.8°F (18.8°C) and an average high of 83.8°F (28.8°C).

Temperature

Granite Hills's August weather, marked by an average high temperature of 83.8°F (28.8°C) and an average low temperature of 65.8°F (18.8°C), is the warmest in the year.

Heat index

The heat index for August is estimated at a hot 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

In August, the average relative humidity is 60%.

Rainfall

In Granite Hills, during August, the rain falls for 3.3 days and regularly aggregates up to 0.31" (8mm) of precipitation. In Granite Hills, during the entire year, the rain falls for 56.1 days and collects up to 8.27" (210mm) of precipitation.

Daylight

In August, the average length of the day is 13h and 19min.
On the first day of the month, sunrise is at 6:02 am and sunset at 7:45 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:13 pm PDT.

Sunshine

In August, the average sunshine is 12h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Granite Hills?

Granite Hills, California, reaches its average highest temperatures in August, measuring 83.8°F (28.8°C) at the peak and 65.8°F (18.8°C) at the lowest.

How hot does it get in Granite Hills in August?

During August, Granite Hills experiences an average high-temperature of 83.8°F (28.8°C) and a low-temperature of 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in August in Granite Hills?

In Granite Hills, California, the average relative humidity in August is 60%.

How much does it rain in Granite Hills in August?

In Granite Hills, California, in August, it is raining for 3.3 days, with typically 0.31" (8mm) of accumulated precipitation.

How many hours of daylight does Granite Hills have in August?

In August, the average day length in Granite Hills is 13h and 19min.

What time are sunrise and sunset in August in Granite Hills?

On the first day of August in Granite Hills, sunrise is at 6:02 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:13 pm PDT.

How many hours of sunshine does Granite Hills have in August?

The average sunshine duration in August in Granite Hills, California, is 12h.

What is the month with the highest UV index in Granite Hills?

The months with the highest UV index in Granite Hills, California, are June through September, with an average maximum UV index of 6.

What is the UV index reading in August in Granite Hills?

The average daily maximum UV index in August in Granite Hills is 6. A UV Index reading of 6 to 7 represents a high health threat from 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
Granite Hills, CA

Average temperature in August - Granite Hills, CA
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (63.7°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (47.8°F).

Average pressure in August
Granite Hills, CA

Average pressure in August - Granite Hills, CA
  • Average pressure in August: 29.88"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).

Average wind speed in August
Granite Hills, CA

Average wind speed in August - Granite Hills, CA
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is October (4.3mph).

Average humidity in August
Granite Hills, CA

Average humidity in August - Granite Hills, CA
  • Average humidity in August: 60%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).

Average rainfall in August
Granite Hills, CA

Average rainfall in August - Granite Hills, CA
  • Average rainfall in August: 0.31"

The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in August
Granite Hills, CA

Average rainfall days in August - Granite Hills, CA
  • Average rainfall days in August: 3.3 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.4 days).

Average daylight in August /
Average sunshine in August
Granite Hills, CA

Average daylight in August / Average sunshine in August - Granite Hills, CA
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in August
Granite Hills, CA

Average sunshine days in August - Granite Hills, CA
  • Average sunshine days in August: 23.9 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.9 days).

Average UV index in August
Granite Hills, CA

Average UV index in August - Granite Hills, CA
  • Average UV index in August: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).

Average cloud cover in August
Granite Hills, CA

Average cloud cover in August - Granite Hills, CA
  • Average cloud cover in August: 7

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in August
Granite Hills, CA

Average visibility in August - Granite Hills, 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).

Granite Hills, California, USA

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