Sarnia, Ontario
Low0.0
UV Index · Now
Step out.
You can step out without sun protection.
Unprotected
No burn risk now
until skin starts to burn.
With SPF 30
No burn risk now
Average unprotected skin. Lighter skin burns faster, darker skin slower.
HeatComfortable
Air
13°
Feels like
13°
Humidity
72%
Questions about Sarnia today
- What is the UV index in Sarnia right now?
- The UV index in Sarnia, Ontario is 0.0 — categorised as Low. You can step out without sun protection.
- Is it safe to go outside in Sarnia today?
- Yes — UV is low (0.0) in Sarnia right now. You can step out without sun protection.
- How long does it take to get sunburn in Sarnia?
- There is no meaningful burn risk in Sarnia right now (UV is 0.0). Risk rises rapidly once UV crosses 3.
- What does the heat feel like in Sarnia today?
- Air temperature is 13°C with 72% humidity, giving a "feels like" reading of 13°C — comfortable.
- When is the safest time to step outside in Sarnia?
- 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 Sarnia, especially through summer.