Hamilton, 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
17°
Feels like
17°
Humidity
77%
Questions about Hamilton today
- What is the UV index in Hamilton right now?
- The UV index in Hamilton, Ontario is 0.2 — categorised as Low. You can step out without sun protection.
- Is it safe to go outside in Hamilton today?
- Yes — UV is low (0.2) in Hamilton right now. You can step out without sun protection.
- How long does it take to get sunburn in Hamilton?
- Average unprotected skin starts to burn in roughly 16 hr 40 min at the current UV index of 0.2 in Hamilton. SPF 30 multiplies that window by about 30×. Lighter skin burns faster; darker skin burns more slowly.
- What does the heat feel like in Hamilton today?
- Air temperature is 17°C with 77% humidity, giving a "feels like" reading of 17°C — comfortable.
- When is the safest time to step outside in Hamilton?
- 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 Hamilton, especially through summer.