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 sea temperature 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
Temperatures reach their maximum during July and August, recording an average high-temperature of 73°F (22.8°C).Humidity
In August, the average relative humidity is 73%.Rainfall
The months with the least rainfall are July and August Rain falls for 0.8 days and accumulates 0.04" (1mm) of rain.Ocean temperature
August and September, with an average ocean temperature of 57.7°F (14.3°C), are months with the warmest seawater.Note: With the appropriate swimsuit, one can swim in 57.7°F (14.3°C) even if temperatures dip below 50°F (10°C); otherwise, be ready for cold shock and breath issues. A fleeting swim around 55.4°F (13°C) is distressing.
Daylight
The average length of the day in August is 13h and 34min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:38 pm PDT.
Sunshine
In Redwood City, the average sunshine in August is 11.9h.UV index
June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 5 in August leads to these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest?
What is the temperature in August?
What is the average humidity in August?
What is the driest month?
How much does it rain in August?
When is the ocean warmest?
What is the water temperature in August?
What is the average length of the day in August?
When are sunrise and sunset in August?
How many hours of sunshine does Redwood City have in August?
What are the months with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Redwood City, CA
- Average high temperature in August: 73°F
The warmest months (with the highest average high temperature) are July and August (73°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in August: 56.1°F
The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in August
Redwood City, CA
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in August
Redwood City, CA
- Average wind speed in August: 5.5mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.5mph).
Average humidity in August
Redwood City, CA
- Average humidity in August: 73%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Redwood City, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is February (2.36").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in August
Redwood City, CA
- Average rainfall days in August: 0.8 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (0.8 days).
Average sea temperature in August
Redwood City, CA
- Average sea temperature in August: 57.7°F
The best months for swimming (with the highest average sea temperature) are August and September (57.7°F).
The coldest month (with the lowest average sea temperature) is April (53.4°F).
Average daylight in August /
Average sunshine in August
Redwood City, 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 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in August
Redwood City, CA
- Average sunshine days in August: 27.6 days
The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is March (17.5 days).
Average UV index in August
Redwood City, CA
- Average UV index in August: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in August
Redwood City, CA
- Average cloud cover in August: 10
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in August
Redwood City, 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).
Redwood City, California, USA
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