August weather forecast
Campbell, CA

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The long roads in the crowded city of Campbell, California
The long roads in the crowded city of Campbell, California

Weather in August

The last month of the summer, August, is also a moderately hot month in Campbell, California, with an average temperature ranging between max 80.4°F (26.9°C) and min 55.9°F (13.3°C).

Temperature

The beginning of August records an average high-temperature of a still warm 80.4°F (26.9°C), marking a negligible difference from July's 80.8°F (27.1°C). The nighttime temperature shows a significant divergence from the daytime highs, averaging at a moderate 55.9°F (13.3°C) in August.

Humidity

In August, the average relative humidity is 64%.

Rainfall

The months with the least rainfall are July and August Rain falls for 0.9 days and accumulates 0.04" (1mm) of rain.

Daylight

The average length of the day in August is 13h and 33min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:15 pm. On the last day of August, in Campbell, sunrise is at 6:38 am and sunset at 7:37 pm PDT.

Sunshine

The average sunshine in August in Campbell is 12h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What is the usual temperature for Campbell in August?

The average high-temperature and low-temperature in Campbell, California, during August are 80.4°F (26.9°C) and 55.9°F (13.3°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in July is appraised at 82.4°F (28°C).

What is the average humidity in August in Campbell?

In Campbell, California, the average relative humidity in August is 64%.

What is the driest month in Campbell?

The months with the least rainfall are July and August Rain falls for 0.9 days and accumulates 0.04" (1mm) of rain.

How many days does it rain in August in Campbell?

In Campbell, California, during August, the rain falls for 0.9 days and regularly aggregates up to 0.04" (1mm) of precipitation.

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

The average day length in August in Campbell, California, is 13h and 33min.

What time are sunrise and sunset in August in Campbell?

On the first day of August, sunrise is at 6:13 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 long on average sun shines in August in Campbell?

In August, the average sunshine duration in Campbell, California, is 12h.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index in Campbell, California.

What is the UV index reading in August in Campbell?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Campbell, CA

Average temperature in August - Campbell, CA
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (56.7°F).

  • Average low temperature in August: 55.9°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).

Average pressure in August
Campbell, CA

Average pressure in August - Campbell, CA
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).

Average wind speed in August
Campbell, CA

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

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.5mph).

Average humidity in August
Campbell, CA

Average humidity in August - Campbell, CA
  • Average humidity in August: 64%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (62%).

Average rainfall in August
Campbell, CA

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

The wettest month (with the highest rainfall) is February (2.2").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in August
Campbell, CA

Average rainfall days in August - Campbell, CA
  • Average rainfall days in August: 0.9 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (0.9 days).

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

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

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: 6h and 0min).

Average sunshine days in August
Campbell, CA

Average sunshine days in August - Campbell, CA
  • Average sunshine days in August: 29.2 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (17.3 days).

Average UV index in August
Campbell, CA

Average UV index in August - Campbell, 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).

Average cloud cover in August
Campbell, CA

Average cloud cover in August - Campbell, 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).

Average visibility in August
Campbell, CA

Average visibility in August - Campbell, 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).

Campbell, California, USA

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