# tenkiyohou.com

> Japanese weather forecast website. Displays official data from the Japan Meteorological Agency (JMA/気象庁). Ad-free, ultra-fast, simple.

tenkiyohou.com provides weather forecasts for all 1,788 municipalities in Japan. All data comes directly from the Japan Meteorological Agency (気象庁) with no independent forecasting. City pages update every 30 minutes; prefecture and national pages update every hour.

## Docs

- [All Prefectures](https://tenkiyohou.com/): National weather overview for all 47 prefectures
- [About](https://tenkiyohou.com/about/): Data sources, terms of use
- [Full llms.txt](https://tenkiyohou.com/llms-full.txt): Complete list of all 47 prefectures with detailed site information

## Optional

- [Hokkaido](https://tenkiyohou.com/hokkaido/): 北海道
- [Aomori](https://tenkiyohou.com/aomori/): 青森県
- [Iwate](https://tenkiyohou.com/iwate/): 岩手県
- [Miyagi](https://tenkiyohou.com/miyagi/): 宮城県
- [Akita](https://tenkiyohou.com/akita/): 秋田県
- [Yamagata](https://tenkiyohou.com/yamagata/): 山形県
- [Fukushima](https://tenkiyohou.com/fukushima/): 福島県
- [Tokyo](https://tenkiyohou.com/tokyo/): 東京都
- [Kanagawa](https://tenkiyohou.com/kanagawa/): 神奈川県
- [Osaka](https://tenkiyohou.com/osaka/): 大阪府
- [Aichi](https://tenkiyohou.com/aichi/): 愛知県
- [Fukuoka](https://tenkiyohou.com/fukuoka/): 福岡県
- [Okinawa](https://tenkiyohou.com/okinawa/): 沖縄県