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
The arrival of August brings an average high-temperature of a still warm 77.5°F (25.3°C), nearly identical to July's 77.7°F (25.4°C). A steep decline to a refreshing 55.9°F (13.3°C) characterizes the August nights.Humidity
In San Leandro, the average relative humidity in August is 68%.Rainfall
The months with the least rainfall are July through September Rain falls for 0.7 days and accumulates 0.04" (1mm) of rain.Daylight
The average length of the day in August in San Leandro 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 6:38 am and sunset at 7:38 pm PDT.
Sunshine
In San Leandro, the average sunshine in August is 11.9h.UV index
In San Leandro, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for San Leandro in August?
What is the average humidity in August in San Leandro?
What is the driest month in San Leandro?
How much does it rain in San Leandro in August?
What is the average length of the day in August in San Leandro?
What time are sunrise and sunset in August in San Leandro?
How many hours of sunshine does San Leandro have in August?
What is the UV index intensity in August in San Leandro?
Average temperature in August
San Leandro, CA
- Average high temperature in August: 77.5°F
The warmest months (with the highest average high temperature) are July and September (77.7°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in August: 55.9°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 (44.1°F).
Average pressure in August
San Leandro, 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
San Leandro, CA
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is May (7mph).
The calmest month (with the lowest average wind speed) is November (4.8mph).
Average humidity in August
San Leandro, CA
- Average humidity in August: 68%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (64%).
Average rainfall in August
San Leandro, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is February (1.26").
The driest months (with the least rainfall) are July, August and September (0.04").
Average rainfall days in August
San Leandro, CA
- Average rainfall days in August: 0.7 days
The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is August (0.7 days).
Average daylight in August /
Average sunshine in August
San Leandro, 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
San Leandro, CA
- Average sunshine days in August: 26.2 days
The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is March (19.1 days).
Average UV index in August
San Leandro, CA
- Average UV index in August: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
San Leandro, CA
- Average cloud cover in August: 9
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in August
San Leandro, 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).
San Leandro, California, USA
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