August weather forecast
Belvedere, CA

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Weather in August

The last month of the summer, August, is another pleasant month in Belvedere, California, with an average temperature varying between 70.5°F (21.4°C) and 56.1°F (13.4°C).

Temperature

The arrival of August brings an average high-temperature of a still pleasant 70.5°F (21.4°C), subtly diverging from July's 70.3°F (21.3°C). During August, Belvedere observes a consistent average nighttime temperature of 56.1°F (13.4°C).

Humidity

The months with the highest humidity are March and August, with an average relative humidity of 76%.

Rainfall

The months with the least rainfall are June through September Rain falls for 3.5 days and accumulates 0.08" (2mm) of rain.

Ocean temperature

In Belvedere, the average seawater temperature in August is 56.7°F (13.7°C).
Note: Being in 56.7°F (13.7°C) waters at 55.4°F (13°C) is discomforting, but anything below 50°F (10°C) can jeopardize breathing and induce cold shock, factoring in physical endurance.

Daylight

In August, the average length of the day is 13h and 35min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:40 pm PDT.

Sunshine

In August, the average sunshine is 11.2h.

UV index

The months with the highest UV index are April, June through September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Belvedere in August?

Belvedere in August has an average high-temperature of 70.5°F (21.4°C) and an average low-temperature of 56.1°F (13.4°C).

What are the most humid months?

The months with the highest humidity in Belvedere are March and August, with an average relative humidity of 76%.

What is the average humidity in August?

In August, the average relative humidity is 76%.

What is the driest month?

June through September are months with the least rain when the rain falls for 3.5 days and typically aggregates up to 0.08" (2mm) of rain.

How many days does it rain in August?

In August, the rain falls for 3.5 days. Throughout August, 0.08" (2mm) of precipitation is accumulated.

What is the ocean temperature in August?

In August, the average ocean temperature is 56.7°F (13.7°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in August?

The average day length in August is 13h and 35min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:13 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:40 pm PDT.

How many hours of sunshine does Belvedere have in August?

The average sunshine duration in August is 11.2h.

What is the month with the highest UV index?

The months with the highest UV index are April, June through September, with an average maximum UV index of 5.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium 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
Belvedere, CA

Average temperature in August - Belvedere, CA
  • Average high temperature in August: 70.5°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.2°F).

  • Average low temperature in August: 56.1°F

The month with the highest average low temperature is September (56.5°F).
The coldest months (with the lowest average low temperature) are January and December (46.2°F).

Average pressure in August
Belvedere, CA

Average pressure in August - Belvedere, 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).

Average wind speed in August
Belvedere, CA

Average wind speed in August - Belvedere, CA
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are October and November (5.7mph).

Average humidity in August
Belvedere, CA

Average humidity in August - Belvedere, CA
  • Average humidity in August: 76%

The months with the highest relative humidity are March and August (76%).
The month with the lowest relative humidity is October (68%).

Average rainfall in August
Belvedere, CA

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

The wettest month (with the highest rainfall) is February (0.98").
The driest months (with the least rainfall) are June, July, August and September (0.08").

Average rainfall days in August
Belvedere, CA

Average rainfall days in August - Belvedere, CA
  • Average rainfall days in August: 3.5 days

The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is June (1.9 days).

Average sea temperature in August
Belvedere, CA

Average sea temperature in August - Belvedere, CA
  • Average sea temperature in August: 56.7°F

The best month for swimming (with the highest average sea temperature) is September (57.3°F).
The coldest months (with the lowest average sea temperature) are April and June (53°F).

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

Average daylight in August / Average sunshine in August - Belvedere, 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: 11h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in August
Belvedere, CA

Average sunshine days in August - Belvedere, CA
  • Average sunshine days in August: 22.1 days

The month with the most sunshine days is October (25 days).
The month with the least sunshine days is March (18.4 days).

Average UV index in August
Belvedere, CA

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

The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in August
Belvedere, CA

Average cloud cover in August - Belvedere, CA
  • Average cloud cover in August: 22

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 18).

Average visibility in August
Belvedere, CA

Average visibility in August - Belvedere, 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).

Belvedere, California, USA

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