Waterloo, Ontario
Low0.2
UV Index · Now
Step out.
You can step out without sun protection.
Unprotected
16 hr 40 min
until skin starts to burn.
With SPF 30
500 hr
Average unprotected skin. Lighter skin burns faster, darker skin slower.
HeatComfortable
Air
14°
Feels like
14°
Humidity
83%
Questions about Waterloo today
- What is the UV index in Waterloo right now?
- The UV index in Waterloo, Ontario is 0.2 — categorised as Low. You can step out without sun protection.
- Is it safe to go outside in Waterloo today?
- Yes — UV is low (0.2) in Waterloo right now. You can step out without sun protection.
- How long does it take to get sunburn in Waterloo?
- Average unprotected skin starts to burn in roughly 16 hr 40 min at the current UV index of 0.2 in Waterloo. SPF 30 multiplies that window by about 30×. Lighter skin burns faster; darker skin burns more slowly.
- What does the heat feel like in Waterloo today?
- Air temperature is 14°C with 83% humidity, giving a "feels like" reading of 14°C — comfortable.
- When is the safest time to step outside in Waterloo?
- UV is highest between 11 am and 4 pm. Early mornings (before 9 am) and late afternoons (after 5 pm) are the safest windows for unprotected skin in Waterloo, especially through summer.