TRC TRAVEL RISK CALCULATOR
Ontario score: 45/100 (Moderate) Updated September 27, 2026

Is Ontario safe? United States travel risk

Is Ontario safe right now? Checked 17 October 2026

Ontario scores 45/100 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.

Ontario scores 45/100 (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 Ontario: nearest emergency and transport facilities, local climate normals, 5-year natural hazard history within 100 km.

Driven by: natural hazards (75/100) and security (35/100).

A score of 45 is higher than 48% of the cities we score.

Consult the United States travel risk page for nationwide security advisories, entry protocols, and consular warnings.

Local Geographic Profile

Coordinates 34.0393° N, 117.6064° W place Ontario within California at an elevation of 306 meters. Heading to Washington: 3,639.3 km ENE.

Region
California
Coordinates
34.0393° N, 117.6064° W
Elevation
306 m
Time Zone
America/Los_Angeles
Population
178,347
Nearest city with evaluated safety score: Mission Viejo (48.0 km S).

Emergency & Transport Infrastructure

Aviation Hub Ontario International Airport (ONT) 1.9 km NNE
Hospital Care Kindred-Ontario Hospital 4.7 km NW
Police Station Ontario Police Department Headquarters 1.4 km SE
Railway Terminal East Ontario 2.5 km E

Surrounding Localities in United States

Climate by Month

Hottest: August (31 °C avg high); Wettest: February (63 mm).

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High °C 19° 20° 21° 23° 25° 28° 31° 31° 31° 28° 23° 19°
Low °C 7° 8° 9° 11° 14° 16° 18° 19° 18° 15° 10° 7°
Rain mm 59 63 50 22 7 1 2 0 1 7 28 47

Normals: Buena Park (41.9 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 — — — 1 — — 1 1
Wildfires 3 — — — — — — — 3 — — —

Most wildfire events within 100 km of Ontario happened in January and September (6 of 6 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.

Nearby Destinations with Scored Guides

Fontana 15
14.9 km ENE
Riverside 30
22.5 km ESE
San Bernardino 15
30.9 km ENE
Anaheim 15
32.1 km SW
Moreno Valley 15
39.2 km ESE
Santa Ana 15
42.2 km SW

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Sources: SimpleMaps, GeoNames, OSM contributors, OurAirports, Open-Meteo, GDACS, USGS · Data desk · Sources · Editorial Policy