August weather forecast
East Palo Alto, CA

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Weather in August

The last month of the summer, August, is also a moderately hot month in East Palo Alto, California, with an average temperature ranging between min 57°F (13.9°C) and max 77.5°F (25.3°C).

Temperature

July and August mark East Palo Alto's peak of temperatures, averaging a high-temperature of 77.5°F (25.3°C).

Humidity

In East Palo Alto, California, the average relative humidity in August is 68%.

Rainfall

Months with rainfall in East Palo Alto are January through June, August through December. August is the first month it rains. Throughout August, in the average 0.6 rainfall days, it receives 0.04" (1mm) of precipitation. In East Palo Alto, during the entire year, the rain falls for 63.3 days and collects up to 9.53" (242mm) of precipitation.

Daylight

In August, the average length of the day in East Palo Alto is 13h and 34min.
On the first day of August, sunrise is at 6:13 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:38 pm PDT.

Sunshine

In August, the average sunshine is 12h.

UV index

The months with the highest UV index are April through October, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. When the Sun is at its strongest around midday, find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in East Palo Alto?

July and August, with an average high-temperature of 77.5°F (25.3°C), are warmest months in East Palo Alto.

What are the temperatures in East Palo Alto in August?

An average high-temperature, in August, in East Palo Alto, is 77.5°F (25.3°C) and the average low-temperature is 57°F (13.9°C).

What is the average humidity in August in East Palo Alto?

The average relative humidity in August in East Palo Alto is 68%.

When does it start to rain in East Palo Alto?

August is the first month it rains in East Palo Alto, California. Throughout August, in the average 0.6 rainfall days, it receives 0.04" (1mm) of precipitation.

What is the average length of the day in August in East Palo Alto?

The average day length in August in East Palo Alto, California, is 13h and 34min.

What time are sunrise and sunset in August in East Palo Alto?

In August, on the first day of the month, sunrise is at 6:13 am and sunset at 8:16 pm. On the last day of the month, in East Palo Alto, sunrise is at 6:38 am and sunset at 7:38 pm PDT.

How many hours of sunshine does East Palo Alto have in August?

In August, the average sunshine duration in East Palo Alto is 12h.

When is the highest UV index in East Palo Alto?

The months with the highest UV index in East Palo Alto, California, are April through October, with an average maximum UV index of 5.

What is the UV index intensity in August in East Palo Alto?

In August, the average daily maximum UV index in East Palo Alto is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
East Palo Alto, CA

Average temperature in August - East Palo Alto, CA
  • Average high temperature in August: 77.5°F

The warmest months (with the highest average high temperature) are July and August (77.5°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in August: 57°F

The month with the highest average low temperature is August (57°F).
The coldest months (with the lowest average low temperature) are January and February (45.1°F).

Average pressure in August
East Palo Alto, CA

Average pressure in August - East Palo Alto, 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
East Palo Alto, CA

Average wind speed in August - East Palo Alto, CA
  • Average wind speed in August: 5mph

The windiest months (with the highest average wind speed) are April and May (6.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.9mph).

Average humidity in August
East Palo Alto, CA

Average humidity in August - East Palo Alto, CA
  • Average humidity in August: 68%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (65%).

Average rainfall in August
East Palo Alto, CA

Average rainfall in August - East Palo Alto, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is February (2.01").
The driest month (with the least rainfall) is July (0").

Average rainfall days in August
East Palo Alto, CA

Average rainfall days in August - East Palo Alto, CA
  • Average rainfall days in August: 0.6 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.6 days).

Average daylight in August /
Average sunshine in August
East Palo Alto, CA

Average daylight in August / Average sunshine in August - East Palo Alto, 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).

Average sunshine days in August
East Palo Alto, CA

Average sunshine days in August - East Palo Alto, CA
  • Average sunshine days in August: 29.5 days

The month with the most sunshine days is July (30.2 days).
The month with the least sunshine days is March (18 days).

Average UV index in August
East Palo Alto, CA

Average UV index in August - East Palo Alto, CA
  • Average UV index in August: 5

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

Average cloud cover in August
East Palo Alto, CA

Average cloud cover in August - East Palo Alto, CA
  • Average cloud cover in August: 8

The months with the most cloud cover are March and December (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 6).

Average visibility in August
East Palo Alto, CA

Average visibility in August - East Palo Alto, 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).

East Palo Alto, California, USA

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