Weather Observations JAPAN
アメダス Viewer｜気象データと気象ランキング
Weather Observations JAPAN is #171 in Weather Free in Japan and charting in 1 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperShigeo Nakamoto
CategoryWeather
PriceFree
Released
Rating★ 3.4 (62)
Version5.0.4
Age rating4+
First seen by us
27 Sep 2026
27 Sep 2026Installs (est.)1k+ worldwide
Rating
3.4 ★
62 ratings
Measured
Best rank now
#171
Weather FreeMeasured
Weather Observations JAPAN on the App Store
App details
App ID
1178829402
Publisher
Shigeo Nakamoto
Content rating
4+
Weather Observations JAPAN downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Weather Observations JAPAN's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | WeatherFree | #171 |
Apps near Weather Observations JAPAN on the chart
Weather Free, around #171.
Ratings
App Store, worldwide.
Rating
3.4 ★
62 ratings
Measured
Ratings
62
Measured
About Weather Observations JAPAN
[Data]
Temperature, Precipitation, Wind direction, Wind speed, Sunshine duration, Snowdepth, Humidity, Pressure.
[Feature]
- Receiving data every 10 minutes from weather observation stations across Japan.
- "Add to Favorites" function for checking several stations' weather observation data in a list.
- Simple and easy UI design.
[Data Source]
Weather observation data (AMeDAS) displayed in this app is published by the Japan Meteorological Agency (JMA).
Source: https://www.jma.go.jp/bosai/amedas/
[Disclaimer]
This is an unofficial app developed by WanaKijiji Apps. It does not represent the Japan Meteorological Agency or any other government entity, and is not officially affiliated with or endorsed by them.
Temperature, Precipitation, Wind direction, Wind speed, Sunshine duration, Snowdepth, Humidity, Pressure.
[Feature]
- Receiving data every 10 minutes from weather observation stations across Japan.
- "Add to Favorites" function for checking several stations' weather observation data in a list.
- Simple and easy UI design.
[Data Source]
Weather observation data (AMeDAS) displayed in this app is published by the Japan Meteorological Agency (JMA).
Source: https://www.jma.go.jp/bosai/amedas/
[Disclaimer]
This is an unofficial app developed by WanaKijiji Apps. It does not represent the Japan Meteorological Agency or any other government entity, and is not officially affiliated with or endorsed by them.
Latest updates
5.0.4
- Favorites now show wind direction as an arrow plus the compass name, matching the station detail screen
- The arrow points the way the wind is blowing. No arrow is shown when it is calm or the value is missing
- Fixed in-app notices not being displayed