Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average sea temperature in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Transitioning into July, Alameda records an average high-temperature of a moderately hot 75.4°F (24.1°C), almost identical to June's 73°F (22.8°C). An average low-temperature of 54.7°F (12.6°C) is noted during the nights in July.Humidity
The average relative humidity in July is 69%.Rainfall
July is the month with the least rainfall. Rain falls for 1.8 days and accumulates 0.04" (1mm) of precipitation.Ocean temperature
In Alameda, the average seawater temperature in July is 55.4°F (13°C).Note: Dipping in 55.4°F (13°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.
Daylight
In Alameda, California, the average length of the day in July is 14h and 28min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:34 pm. On the last day of July, sunrise is at 6:12 am and sunset at 8:18 pm PDT.
Sunshine
The month with the most sunshine is July, with an average of 12h of sunshine.UV index
The months with the highest UV index are April 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 unsafe exposure to UV radiation for the ordinary person.Note: During July, 5 as the daily maximum UV index converts into the following advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are July temperatures?
What is the average humidity in July?
What is the driest month?
How much does it rain in July?
What is the ocean temperature in July?
How many hours of daylight does Alameda have in July?
When is the sunrise / sunset in July?
What month has the most sunshine?
How many hours of sunshine does Alameda have in July?
What are the months with the highest UV index?
How high is the UV index in July?
Average temperature in July
Alameda, CA
- Average high temperature in July: 75.4°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 July: 54.7°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 July
Alameda, CA
- Average pressure in July: 29.93"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 July
Alameda, CA
- Average wind speed in July: 6mph
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 July
Alameda, CA
- Average humidity in July: 69%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (65%).
Average rainfall in July
Alameda, CA
- Average rainfall in July: 0.04"
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 July
Alameda, CA
- Average rainfall days in July: 1.8 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 July
Alameda, CA
- Average sea temperature in July: 55.3°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 July /
Average sunshine in July
Alameda, CA
- Average daylight in July: 14h and 3min
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 July: 12h and 0min
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 July
Alameda, CA
- Average sunshine days in July: 25.4 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 July
Alameda, CA
- Average UV index in July: 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 July
Alameda, CA
- Average cloud cover in July: 9
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 July
Alameda, CA
- Average visibility in July: 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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