Union City Weather in June

What's the weather like in Union City (California) in June 2025?

The climate in Union City during June can be summarized as warm and very dry.

June is in the summer in Union City and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 24°C (76°F), whilst at night 12°C (54°F) is normal.

Union City weather averages (imperial / metric)
Daytime temperature 24.4°C 75.9°F
Nightly temperature 12°C 53.6°F
Average temperature 18.2°C 64.8°F
Daily sunshine 12 hrs
Avg rainfall 2 mm 0.1 ins
Rainy days 1 days
Sea temperature 12.2°C 53.9°F
Humidity 66%
Windspeed 20.2kph 13 mph

On average June is the 3rd driest month of the year in Union City with around 2mm 0.1 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 12 hours of sunshine per day.

June temperatures in Union City

Union City average temperature in June

June rainfall

Union City average rain in June

June hourly sunshine

Union City average rain in June

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Union City in June 2025.

Other monthly averages

Best places to visit in June

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Union City weather stats

Union City weather statistics
Hottest month: August 25.5°C 77.9°F
Driest month: July 1mm 0ins
Sunniest month: April 11.2hrs
Coldest month: January 13.6°C 56.5°F
Wettest month: January 80mm 3.1ins
Map showing location of Union City (37.59583, -122.01917) Union City map pin © Google

Locations nearby

Top United States locations