Heat is a reason to plan a summer programme differently, not a reason to avoid the season. Japan is a useful model because it manages heat as a public-health matter, with national alerts issued through the warm months. Our Japan team covers the detail in its guide to Japan's summer heat. Here we draw out the method, so that agents can apply it to any programme that meets hot weather.
What Japan's Alerts Tell a Planner
From late April to late October, Japan's Ministry of the Environment issues a heatstroke alert for a forecast area when the next day's heat index is expected to reach a dangerous level. That index, WBGT, takes in humidity and sunshine as well as temperature, which is why a humid day can score worse than a hotter, drier one. A higher, prefecture-wide special alert also exists, and when it is issued local authorities open cooling shelters.
The alerts are published in weather apps and on the ministry's website. We read them each evening and adjust the next day's programme.
A Heat Plan That Travels
The same plan works wherever a programme meets hot weather, including in our other destinations:
- Outdoor sights first. Temples, gardens and walking routes go early in the morning.
- Indoors at midday. Museums, shopping and a long lunch fill the hottest hours.
- Shorter outdoor stretches. Split a long walk in two, with a vehicle in between.
- Evenings outside. Festivals, night markets and illuminations are at their best after dark.
- A cooler leg. In Japan, the Alps, Hokkaido and the highlands make a good second half to a summer itinerary.
Briefing Clients and Tour Leaders
Clients should drink before they feel thirsty and carry a bottle. Hats and light clothing help, and in Japan parasols are carried by men and women alike, with cooling towels and hand fans on sale in convenience stores. Older guests, young children and anyone with a medical condition are at higher risk, so tour leaders should know the warning signs. If someone is affected, move them into shade or air-conditioning, cool them down and give fluids. In Japan, the emergency number is 119.
What to Ask Your DMC
Ask whether each outdoor stop has an indoor alternative, whether the pace eases on alert days, and whether the guide is briefed to change the plan on the spot. Confirm that your clients' travel insurance covers medical care abroad.
Frequently Asked Questions
What is a heatstroke alert in Japan?
A public warning from the Ministry of the Environment, issued for a forecast area when the next day's heat index is expected to be dangerous. It runs from late April to late October.
Should groups avoid Japan in summer?
No. With outdoor sightseeing early, indoor visits at midday and evenings outside, summer programmes work well.
What should tour leaders know?
The warning signs of heat illness, and the first response: shade, cooling and fluids. Call 119 for serious symptoms in Japan.
Where Explera Fits
We build a heat plan into summer programmes in all four destinations.
Write to b2b@expleradmc.com or message +66 93 656 8090 on WhatsApp. Explera DMC is IATA TIDS-registered (96215733) and an ASTA member (900408341). Explera Thailand holds TAT licence No. 14/05119.
