St. Catharines UV Index Today
- Current UV Index5.0
- Peak UV Index7.0
- Temperature22.5 ℃
- Peak UV at 1 PM
- Protection Recommended ☀️
Last updated:
The UV index in St. Catharines, Canada 
will reach a high of 5 today. This means a normal level of sun exposure. See our tips below to stay safe!
Hourly Forecast Chart
Today's Safety Tips
Check the live data above for the current conditions and stay safe in the sun!
St. Catharines's UV Index
The UV index in St. Catharines varies throughout the year, generally ranging from low in winter to moderate or high during summer, peaking around June and July when the sun is strongest.
Weather Seasons
St. Catharines experiences cold winters with snow, and warm, humid summers. Spring and fall bring mild temperatures and moderate rainfall. The weather changes noticeably with the seasons, showing typical patterns for southern Ontario.
St. Catharines's Climate
Compared to nearby cities in Ontario and neighboring U.S. states, St. Catharines has a milder winter due to its location near Lake Ontario. Its summer heat and humidity are similar to places like Toronto but less extreme than regions further inland.
Hourly UV Index Trend
See the UV index hour by hour for St. Catharines. When the level is high, it's smart to find some shade.
- TimeUVLevelTemp
- 12 PM5.0moderate22 ℃
Nearby Cities
Check the UV index in other cities near St. Catharines.
