August weather forecast
Fallbrook, CA

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Weather in August

The last month of the summer, August, is another warm month in Fallbrook, California, with an average temperature varying between 83.3°F (28.5°C) and 63°F (17.2°C).

Temperature

In Fallbrook, August is identified by the highest average temperatures, reaching a peak of 83.3°F (28.5°C) and a low of 63°F (17.2°C).

Heat index

August's heat index is computed to be a tropical 86°F (30°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In August, the average relative humidity is 61%.

Rainfall

In August, the rain falls for 3.6 days. Throughout August, 0.31" (8mm) of precipitation is accumulated. Throughout the year, there are 63.6 rainfall days, and 8.98" (228mm) of precipitation is accumulated.

Daylight

The average length of the day in August is 13h and 21min.
On the first day of August, sunrise is at 6:02 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:15 pm PDT.

Sunshine

July and August, with an average of 12h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

What is the warmest month?

Fallbrook experiences its average highest temperatures in August, reaching a peak of 83.3°F (28.5°C) and a minimum of 63°F (17.2°C).

Is it hot in Fallbrook during August?

In Fallbrook, in August, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 63°F (17.2°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

What is the average humidity in August?

In August, the average relative humidity in Fallbrook is 61%.

How much does it rain in August?

In Fallbrook, in August, during 3.6 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.

How many hours of daylight does Fallbrook have in August?

In August, the average day length in Fallbrook is 13h and 21min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:02 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:15 pm PDT.

What are the months with the most sunshine?

July and August, with an average of 12h of sunshine, are months with the most sunshine in Fallbrook.

How many hours of sunshine does Fallbrook have in August?

In August, the average sunshine duration is 12h.

When is the highest UV index?

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

What is the UV index intensity in August?

In Fallbrook, 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 exposure to the Sun's 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
Fallbrook, CA

Average temperature in August - Fallbrook, CA
  • Average high temperature in August: 83.3°F

The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (63°F).

  • Average low temperature in August: 63°F

The month with the highest average low temperature is August (63°F).
The coldest months (with the lowest average low temperature) are February and December (46.9°F).

Average pressure in August
Fallbrook, CA

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

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

Average wind speed in August
Fallbrook, CA

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

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

Average humidity in August
Fallbrook, CA

Average humidity in August - Fallbrook, CA
  • Average humidity in August: 61%

The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is November (55%).

Average rainfall in August
Fallbrook, CA

Average rainfall in August - Fallbrook, CA
  • Average rainfall in August: 0.31"

The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in August
Fallbrook, CA

Average rainfall days in August - Fallbrook, CA
  • Average rainfall days in August: 3.6 days

The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is June (1.2 days).

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

Average daylight in August / Average sunshine in August - Fallbrook, 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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days in August
Fallbrook, CA

Average sunshine days in August - Fallbrook, CA
  • Average sunshine days in August: 24.8 days

The month with the most sunshine days is June (25.8 days).
The month with the least sunshine days is February (20 days).

Average UV index in August
Fallbrook, CA

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

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in August
Fallbrook, CA

Average cloud cover in August - Fallbrook, CA
  • Average cloud cover in August: 6

The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in August
Fallbrook, CA

Average visibility in August - Fallbrook, 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).

Fallbrook, California, USA

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