Yotsuya, Tokyo
Low2.3
UV Index · Now
Step out.
You can step out without sun protection.
Unprotected
1 hr 27 min
until skin starts to burn.
With SPF 30
43 hr 29 min
Average unprotected skin. Lighter skin burns faster, darker skin slower.
HeatComfortable
Air
16°
Feels like
16°
Humidity
92%
Questions about Yotsuya today
- What is the UV index in Yotsuya right now?
- The UV index in Yotsuya, Tokyo is 2.3 — categorised as Low. You can step out without sun protection.
- Is it safe to go outside in Yotsuya today?
- Yes — UV is low (2.3) in Yotsuya right now. You can step out without sun protection.
- How long does it take to get sunburn in Yotsuya?
- Average unprotected skin starts to burn in roughly 1 hr 27 min at the current UV index of 2.3 in Yotsuya. SPF 30 multiplies that window by about 30×. Lighter skin burns faster; darker skin burns more slowly.
- What does the heat feel like in Yotsuya today?
- Air temperature is 16°C with 92% humidity, giving a "feels like" reading of 16°C — comfortable.
- When is the safest time to step outside in Yotsuya?
- 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 Yotsuya, especially through summer.