Is Union City safe? United States travel risk
Is Union City safe right now? Checked 23 October 2026
Union City scores 39/100 on our travel risk index (Moderate). The UK has no advice against travel; Canada says: exercise normal security precautions. The US State Department does not issue advice for United States. No GDACS or USGS hazard events within 100 km in the last 14 days. No change in government advice in the last 7 days.
Union City scores 39/100 (Moderate). The score combines security, crime and scams, health and medical access, natural hazards and current alerts measured for this location and United States (how it is calculated). The sections below are specific to Union City: nearest emergency and transport facilities, local climate normals, 5-year natural hazard history within 100 km.
Driven by: security (35/100) and natural hazards (54/100).
A score of 39 is higher than 40% of the cities we score.
Consult the United States travel risk page for nationwide security advisories, entry protocols, and consular warnings.
Territorial & Position Context
In the California territory, Union City is established at 37.6032° N, 122.0181° W. It lies 3,891.8 km ENE relative to Washington. Time zone observed: America/Los_Angeles.
California
37.6032° N, 122.0181° W
21 m
America/Los_Angeles
68,141
Critical Services & Regional Transit
Adjacent Localities in United States
Climate by Month
Hottest: September (22 °C avg high); Wettest: January (94 mm).
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 13° | 14° | 15° | 17° | 19° | 20° | 21° | 21° | 22° | 20° | 16° | 13° |
| Low °C | 5° | 6° | 7° | 8° | 9° | 11° | 12° | 12° | 12° | 11° | 8° | 5° |
| Rain mm | 94 | 84 | 73 | 35 | 12 | 3 | 2 | 3 | 4 | 16 | 54 | 82 |
Normals: San Francisco (41.2 km away).
Natural Hazard Calendar & History
5-Year Hazard Calendar (100 km Radius)
| Hazard | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Floods | — | 1 | — | — | — | — | — | — | — | — | — | 1 |
Most flood events within 100 km of Union City happened in February and December (2 of 2 in five years).
Source: GDACS, USGS; five years to October 2026.
For consular advice on women's safety, LGBT+ travel, and local laws, see the United States travel advice & laws.
Check the official entry requirements for your nationality before you travel. See the United States entry requirements.
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