California · United States
Union City travel guide
Union City is a city in California, United States, home to about 70,000 people.
- Best months
- April to October
- Nearest airport
- SQL20 km · San Carlos Airport
- Currency
- USDUnited States dollar
- Time zone
- America/Los Angeles
- Language
- Carolinian, Chamorro, Hawaiian
When to go
The best time to visit Union City
The most comfortable months for a city stay in Union City are April to October. September is the warmest month, with average highs of 24 °C; December is the wettest, with about 119 mm of rain.
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
Getting there
Getting to Union City: airports and arrival
The nearest airport with scheduled flights is San Carlos Airport (SQL), about 20 km from the city centre in a straight line; Oakland San Francisco Bay Airport (OAK, 21 km) and Mineta San Jose International Airport (SJC, 28 km) are also within reach.
SQL · San Carlos Airport
OAK · Oakland San Francisco Bay Airport
SJC · Mineta San Jose International Airport
Questions
Union City: questions travellers ask
When is the best time to visit Union City?
The most comfortable months for a city stay in Union City are April to October. September is the warmest month, with average highs of 24 °C; December is the wettest, with about 119 mm of rain.
Which airport is closest to Union City?
The nearest airport with scheduled flights is San Carlos Airport (SQL), about 20 km from the city centre in a straight line; Oakland San Francisco Bay Airport (OAK, 21 km) and Mineta San Jose International Airport (SJC, 28 km) are also within reach.
What currency is used in Union City?
United States dollar (USD).
Nearby
Destinations near Union City
Sources: city facts from Wikidata and Wikipedia; airports from OurAirports; climate from CRU TS v4.10 (University of East Anglia Climatic Research Unit), 1991–2020 monthly means, 0.5° grid; places to stay, guest scores and amenities from each operator's own public pages. How this guide is made.