Shiojiri, Nagano
Low2.1
UV Index · Now
Step out.
You can step out without sun protection.
Unprotected
1 hr 35 min
until skin starts to burn.
With SPF 30
47 hr 37 min
Average unprotected skin. Lighter skin burns faster, darker skin slower.
HeatComfortable
Air
15°
Feels like
15°
Humidity
45%
Questions about Shiojiri today
- What is the UV index in Shiojiri right now?
- The UV index in Shiojiri, Nagano is 2.1 — categorised as Low. You can step out without sun protection.
- Is it safe to go outside in Shiojiri today?
- Yes — UV is low (2.1) in Shiojiri right now. You can step out without sun protection.
- How long does it take to get sunburn in Shiojiri?
- Average unprotected skin starts to burn in roughly 1 hr 35 min at the current UV index of 2.1 in Shiojiri. SPF 30 multiplies that window by about 30×. Lighter skin burns faster; darker skin burns more slowly.
- What does the heat feel like in Shiojiri today?
- Air temperature is 15°C with 45% humidity, giving a "feels like" reading of 15°C — comfortable.
- When is the safest time to step outside in Shiojiri?
- 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 Shiojiri, especially through summer.