Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
In Menlo Park, the months of July and August are known for the peak temperatures, reaching an average high of 77.5°F (25.3°C).Humidity
In August, the average relative humidity is 68%.Rainfall
January through June, August through December are months with rainfall. August is the first month it rains. Throughout August, in the average 0.6 rainfall days, it receives 0.04" (1mm) of precipitation. Throughout the year, there are 63.3 rainfall days, and 9.53" (242mm) of precipitation is accumulated.Daylight
In Menlo Park, the average length of the day in August is 13h and 34min.On the first day of August in Menlo Park, 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
The average sunshine in August 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 estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
What are August temperatures?
What is the average humidity in August?
When does it start raining?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Menlo Park have in August?
What are the months with the highest UV index?
How high is the UV index in August?
Average temperature in August
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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
Menlo Park, 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).
Menlo Park, California, USA
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