Your prefecture's week, called in one word.
Signals resolve.
Japan prepares.
Arovyx compiles official public data into seven-day heat outlooks for all 47 prefectures. Every forecast keeps its evidence, confidence, and limits visible.
Download the app ↓Announcement · October 2026
Arovyx officially joins NVIDIA Inception
Arovyx has been accepted into NVIDIA Inception, the program that supports startups building with accelerated computing and AI. For Arovyx it means access to NVIDIA's technology, expertise and network as we turn fragmented public data into risk intelligence that people can read, check and act on, starting with seven-day heat outlooks for all 47 prefectures of Japan.
One country. 47 local conditions.
Anatomy of a forecast.
This is what one prefecture receives: layers you can pull apart and check.
Seven days, seven colors. The week reads left to right.
How sure the model is, written on the forecast itself.
Rebuilt every morning from the newest official data.
Every outlook traces back to the Japan Meteorological Agency.
Every forecast shows its work.
Arovyx supports decisions, it does not replace them. Each outlook keeps the model's reasoning open for inspection.
Prediction is not authority.
Same day, same prefecture — two documents. One states facts. One is labeled a prediction. They never merge.
Arovyx supports human judgment. It never replaces it.
days ahead.↓