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 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
The warmest period falls in July and August, when the average high-temperature reaches 80.1°F (26.7°C).Humidity
The average relative humidity in July is 63%.Rainfall
In Union City, rain does not fall in June through August.Daylight
In Union City, the average length of the day in July is 14h and 28min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:33 pm. On the last day of July, in Union City, sunrise is at 6:12 am and sunset at 8:17 pm PDT.
Sunshine
With an average of 12.2h of sunshine, July has the most sunshine of the year.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during July leads to these instructions:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months in Union City?
What is the average July temperature?
What is the average humidity in July?
What is the driest month?
What is the average length of the day in July?
When are sunrise and sunset in July?
What month has the most sunshine?
How long on average sun shines in July?
What is the month with the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Union City, CA
- Average high temperature in July: 80.1°F
The warmest months (with the highest average high temperature) are July and August (80.1°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in July: 55.2°F
The months with the highest average low temperature are August and September (56.7°F).
The coldest month (with the lowest average low temperature) is December (43.7°F).
Average pressure in July
Union City, 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
Union City, CA
- Average wind speed in July: 5.3mph
The windiest month (with the highest average wind speed) is May (6.4mph).
The calmest months (with the lowest average wind speed) are October and November (4.7mph).
Average humidity in July
Union City, CA
- Average humidity in July: 63%
The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are September and October (62%).
Average rainfall in July
Union City, CA
- Average rainfall in July: 0"
The wettest month (with the highest rainfall) is February (0.47").
The driest months (with the least rainfall) are June, July and August (0").
Average rainfall days in July
Union City, CA
- Average rainfall days in July: 0.3 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is July (0.3 days).
Average daylight in July /
Average sunshine in July
Union City, 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 1min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in July
Union City, CA
- Average sunshine days in July: 30.4 days
The months with the most sunshine days are July and August (30.4 days).
The month with the least sunshine days is February (22.2 days).
Average UV index in July
Union City, CA
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in July
Union City, CA
- Average cloud cover in July: 6
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in July
Union City, 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).
Union City, California, USA
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