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
July and August are characterised by peak temperatures, with an average high of 73°F (22.8°C).Humidity
The average relative humidity in August in Redwood City is 73%.Rainfall
The months with the least rainfall in Redwood City, California, 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 in Redwood City.Note: Swimming at temperatures less than 50°F (10°C) in 57.7°F (14.3°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.
Daylight
In Redwood City, the average length of the day in August 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 6:39 am and sunset at 7:38 pm PDT.
Sunshine
In August, the average sunshine in Redwood City is 11.9h.UV index
The months with the highest UV index in Redwood City are June through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, the maximum UV index of 5 translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What is the warmest month in Redwood City?
What is the average August temperature in Redwood City?
What is the average humidity in August in Redwood City?
What is the driest month in Redwood City?
How many days does it rain in August in Redwood City?
What months are the ocean warmest in Redwood City?
How cold is the water in August in Redwood City?
How many hours of daylight does Redwood City have in August?
What time are sunrise and sunset in August in Redwood City?
How long on average sun shines in August in Redwood City?
What is the month with the highest UV index in Redwood City?
How high is the UV index in August in Redwood City?
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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