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
August notes an average high-temperature of a still warm 75.6°F (24.2°C), subtly differing from July's 75.4°F (24.1°C). In Alameda, the average nighttime temperature during August is a mild 56.1°F (13.4°C).Humidity
In Alameda, the average relative humidity in August is 70%.Rainfall
In August, the rain falls for 1.3 days. Throughout August, 0.08" (2mm) of precipitation is accumulated. Throughout the year, there are 67.2 rainfall days, and 6.1" (155mm) of precipitation is accumulated.Ocean temperature
In Alameda, in August, the average water temperature is 56.7°F (13.7°C).Note: It is advised against swimming in 56.7°F (13.7°C) when it drops below 50°F (10°C). Such temperatures can cause extreme cold shock, leading to hyperventilation.
Daylight
In August, the average length of the day in Alameda is 13h and 34min.On the first day of August in Alameda, sunrise is at 6:13 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:39 pm PDT.
Sunshine
In Alameda, the average sunshine in August is 11.9h.UV index
April through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 during August translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What are the temperatures in Alameda in August?
What is the average humidity in August in Alameda?
How much does it rain in Alameda in August?
What is the ocean temperature in August in Alameda?
How many hours of daylight does Alameda have in August?
When is the sunrise / sunset in August in Alameda?
How long on average sun shines in August in Alameda?
What is the month with the highest UV index in Alameda?
What is the UV index reading in August in Alameda?
Average temperature in August
Alameda, CA
- Average high temperature in August: 75.6°F
The warmest month (with the highest average high temperature) is September (75.9°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 (56.5°F).
The coldest month (with the lowest average low temperature) is January (45°F).
Average pressure in August
Alameda, 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
Alameda, CA
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest months (with the lowest average wind speed) are October and November (5.2mph).
Average humidity in August
Alameda, CA
- Average humidity in August: 70%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (65%).
Average rainfall in August
Alameda, CA
- Average rainfall in August: 0.08"
The wettest month (with the highest rainfall) is February (1.18").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in August
Alameda, CA
- Average rainfall days in August: 1.3 days
The month with the highest number of rainy days is March (11.4 days).
The month with the least rainy days is August (1.3 days).
Average sea temperature in August
Alameda, 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
Alameda, 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 54min).
Average sunshine days in August
Alameda, CA
- Average sunshine days in August: 23.8 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in August
Alameda, CA
- Average UV index in August: 5
The months with the highest UV index are April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in August
Alameda, CA
- Average cloud cover in August: 11
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
Alameda, 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).
Alameda, California, USA
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