August weather forecast
Fremont, CA

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A beautiful landscape of winding roads and serene residential estate in Fremont, California
A beautiful landscape of winding roads and serene residential estate in Fremont, California

Weather in August

August continues the summer weather pattern established in July. Fremont experiences warm days and cool nights, an ideal combination for enjoying outdoor activities. Sea temperatures are at their warmest, offering a refreshing contrast to the warmth of land. Although the length of daylight reduces slightly, there's still plenty of sunshine to enjoy. The lower wind speed of 4.8mph (7.7km/h) also characterizes this month, providing a calm and serene atmosphere.

Temperature

During August, Fremont observes a subtle ascent to a still warm 82°F (27.8°C) from July's 82.6°F (28.1°C) in the average high-temperature. Fremont records a consistent low-temperature average of 56.8°F (13.8°C) during August, indicating a significant difference from the daytime heat.

Heat index

For August, the heat index is evaluated at 84.2°F (29°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

The months with the least rainfall in Fremont are June through August Rain falls for 0.5 days and accumulates 0.04" (1mm) of rain.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 57.7°F (14.3°C).
Note: Swimming in 57.7°F (14.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Fremont, the average length of the day in August is 13h and 34min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:15 pm. On the last day of August, sunrise is at 6:38 am and sunset at 7:37 pm PDT.

Sunshine

The average sunshine in August in Fremont is 12h.

UV index

In Fremont, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The UV index of 5 during August translates into the following guidance:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What is the average August temperature in Fremont?

The average high-temperature, in August, in Fremont, is 82°F (27.8°C), while the average low-temperature is 56.8°F (13.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is evaluated at 84.2°F (29°C).

What is the average humidity in August in Fremont?

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

What is the driest month in Fremont?

The months with the least rainfall are June through August Rain falls for 0.5 days and accumulates 0.04" (1mm) of rain.

How many days does it rain in August in Fremont?

In Fremont, in August, during 0.5 rainfall days, 0.04" (1mm) of precipitation is typically accumulated.

When is the ocean warmest in Fremont?

With an average ocean temperature of 57.7°F (14.3°C), August is the month with the warmest seawater in Fremont.

What is the ocean temperature in August in Fremont?

In Fremont, California, the average seawater temperature in August is 57.7°F (14.3°C). Swimming in 57.7°F (14.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

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

In August, the average day length in Fremont, California, is 13h and 34min.

When are sunrise and sunset in August in Fremont?

In August, on the first day of the month, sunrise is at 6:12 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:37 pm PDT.

How many hours of sunshine does Fremont have in August?

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

What is the UV index reading in August in Fremont?

The average daily maximum UV index in August in Fremont, California, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Fremont, CA

Average temperature in August - Fremont, CA
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (56.5°F).

  • Average low temperature in August: 56.8°F

The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

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Average pressure in August
Fremont, CA

Average pressure in August - Fremont, 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).

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Average wind speed in August
Fremont, CA

Average wind speed in August - Fremont, CA
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is May (6.1mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).

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Average humidity in August
Fremont, CA

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

The month with the highest relative humidity is March (72%).
The months with the lowest relative humidity are July and September (59%).

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Average rainfall in August
Fremont, CA

Average rainfall in August - Fremont, CA
  • Average rainfall in August: 0.04"

The wettest months (with the highest rainfall) are January, February, March and December (0.67").
The driest months (with the least rainfall) are June, July and August (0.04").

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Average rainfall days in August
Fremont, CA

Average rainfall days in August - Fremont, CA
  • Average rainfall days in August: 0.5 days

The month with the highest number of rainy days is March (8.9 days).
The month with the least rainy days is August (0.5 days).

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Average sea temperature in August
Fremont, CA

Average sea temperature in August - Fremont, CA
  • Average sea temperature in August: 57.7°F

The best month for swimming (with the highest average sea temperature) is August (57.7°F).
The coldest months (with the lowest average sea temperature) are February and April (53.2°F).

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

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

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

  • 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: 5h and 54min).

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Average sunshine days in August
Fremont, CA

Average sunshine days in August - Fremont, CA
  • Average sunshine days in August: 29.8 days

The month with the most sunshine days is July (30 days).
The month with the least sunshine days is March (20.7 days).

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Average UV index in August
Fremont, CA

Average UV index in August - Fremont, CA
  • Average UV index in August: 5

The months with the highest UV index are June and July (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
Fremont, CA

Average cloud cover in August - Fremont, CA
  • Average cloud cover in August: 7

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 6).

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Average visibility in August
Fremont, CA

Average visibility in August - Fremont, 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).

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Fremont, California, USA

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