July weather forecastOakland, CA
July
Weather in July
July in Oakland continues the reign of summer. Despite a small increase in the average temperature, the weather generally maintains the warmth from June. Alongside, sea temperatures experience a slight rise, making water activities more inviting. July displays an increase in humidity. However, the most peculiar aspect of July weather lies in the daytime sunshine reaching 11.9 hours, with virtually no rainfall, creating an optimal outdoor climate. As August approaches, Oakland gears up for marginally warmer days and moderately high sea temperatures.Temperature
July's advent denotes a minor fluctuation in the average high-temperature to a still pleasant 72.7°F (22.6°C) from June's 71.2°F (21.8°C). In July, the average low-temperature records at a cool 55°F (12.8°C) during the nights.Humidity
In Oakland, the average relative humidity in July is 72%.Rainfall
July is the only month when rain does not fall.Ocean temperature
In Oakland, the average seawater temperature in July is 55.4°F (13°C).Note: Dipping into 55.4°F (13°C) below 50°F (10°C) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 55.4°F (13°C) can be jarring.
Daylight
The average length of the day in July in Oakland is 14h and 29min.On the first day of July in Oakland, California, sunrise is at 5:51 am and sunset at 8:35 pm. On the last day of the month, 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 11.9h of sunshine.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 exposure to the Sun's UV radiation for average individuals.Note: In July, a regular UV index of 5 translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Oakland, CA
- Average high temperature in July: 72.7°F
The warmest month (with the highest average high temperature) is September (73.9°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in July: 55°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 (45.7°F).
Average pressure in July
Oakland, 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
Oakland, CA
- Average wind speed in July: 6.3mph
The windiest month (with the highest average wind speed) is May (7.6mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).
Average humidity in July
Oakland, CA
- Average humidity in July: 72%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (67%).
Average rainfall in July
Oakland, CA
- Average rainfall in July: 0"
The wettest month (with the highest rainfall) is February (0.67").
The driest month (with the least rainfall) is July (0").
Average rainfall days in July
Oakland, CA
- Average rainfall days in July: 1.2 days
The month with the highest number of rainy days is March (8.5 days).
The months with the least rainy days are June and August (0.8 days).
Average sea temperature in July
Oakland, 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
Oakland, CA
- Average daylight in July: 14h and 30min
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: 11h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in July
Oakland, CA
- Average sunshine days in July: 29.7 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (20.8 days).
Average UV index in July
Oakland, 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, February, November and December (UV index 3).
Average cloud cover in July
Oakland, CA
- Average cloud cover in July: 12
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in July
Oakland, 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).
