熱中症アラート(暑さ指数予測)

Prepare in advance before dangerous heat arrives. "Heat Index Forecast (Heatstroke Prevention)" is a heatstroke prevention forecast app that allows you to check the heat index (WBGT) for up to 7 days in advance, hourly, anywhere in the country. It displays the "true heat," which cannot be determined by temperature alone, in an easy-to-understand warning level.

■ No registration required, ready to use immediately
- Display a color-coded map of Japan showing the risk level for each prefecture (risk map)
- Check today's heat index for major cities nationwide at a glance
- Enter an address to display the heat index for that location
- Select a location on the map to check hourly and daily forecasts

■ Easy-to-read hourly forecast
- Display the heat index in a graph along with "temperature" and "weather"
- Check up to 7 days in advance
- Intuitively display normal/warning/severe warning/work suspension using colors and emojis

■ Favorites & advance notifications (free)
- Register frequently viewed locations as favorites for quick display on the home screen
- Receive push notifications approximately 3 hours before your favorite location reaches dangerously high temperatures

■ What is the Heat Index (WBGT)?

It is an international index that indicates the risk of heatstroke by combining temperature, humidity, radiant heat, etc. Even at the same temperature, the higher the humidity, the higher the risk. It displays easy-to-understand guidelines for daily life and outdoor work, in accordance with the Ministry of the Environment's standards.

■ For Heatstroke Prevention at Worksites (Corporate Login)
- Register your company's worksites and manage 7-day forecasts that are automatically updated daily.
- Record actual WBGT values ​​measured at the worksite.
- Receive alerts when the threshold is exceeded.
* Accounts are issued to contracted companies. There are no in-app purchases.

■ Recommended for:
- Managers and workers at outdoor worksites such as construction, civil engineering, and logistics.
- Organizers of sports, club activities, and outdoor events.
- Worksites where heatstroke is a concern, such as schools, childcare facilities, and elderly care facilities.
- Anyone who wants to use it to help prevent heatstroke on a daily basis.

Prevention is paramount when it comes to heatstroke. Anticipate the heat index and avoid working or exercising during dangerous times.

■ Source and Precautions
Observation points: Ministry of the Environment Heatstroke Prevention Information Site
Forecasts are for reference only. Always make safety decisions in conjunction with actual measurements.