Camp Weather Japan: KUMOYUKI
Overnight campsite forecast
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Free, no account, no ads. 1,600+ Japanese campsites rated per overnight stay: setup, campfire, sleep and pack-up, with the night's low corrected for elevation.
KUMOYUKI rates the weather at 1,600+ campsites across Japan per overnight stay, from check-in to pack-up the next morning, so you can decide in 30 seconds whether to go, go prepared, or cancel. Free, no account.
A NIGHT, NOT A DAY
One camping night spans two calendar days. KUMOYUKI builds the forecast for the stay window (for example Sat 13:00 to Sun 11:00) and gives it a 5-level score. Gusts, lightning and heavy rain cap the score so they are never averaged away.
SETUP, CAMPFIRE, SLEEP, PACK-UP
- Setup (13-16h): can you pitch dry?
- Campfire (16-21h): will gusts exceed 5 m/s?
- Sleep (21-6h): how cold it gets (elevation-corrected), night gusts, lightning
- Pack-up (7-11h): wet tear-down and condensation risk
A stargazing bonus index is shown too.
FIND THE DRY GAP
The stay timeline suggests time shifts such as "setup after 15:00 stays dry" or "pack up before 9:00 to avoid rain".
HIGHLAND COLD, CORRECTED
Many campsites sit at altitude, where town forecasts miss the night chill. Every forecast is corrected to the campsite's elevation, giving a realistic overnight low for choosing your sleeping bag.
MAP AND ADVICE
Campsites appear as color-coded pins on a nationwide map (score, night temperature and campfire-wind layers). The advice tab answers "can I have a campfire?", "how cold tonight?" and "will pack-up be wet?" in plain language.
PRIVACY
No ads, no account, no location tracking. Usage statistics can be turned off in Settings.
NOTE
Ratings are estimates from weather models and may differ from actual conditions. Campsite opening hours, bookings and on-site conditions are not included. The final decision is yours.
Campsite data: (c) OpenStreetMap contributors (ODbL). Forecast: Open-Meteo. Elevation and map: Geospatial Information Authority of Japan.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Fixed forecasts failing to load after moving the map repeatedly.
- When a forecast can't be loaded, the app now tells you whether you're offline or the service is busy, and retries automatically when busy.
- Fixed the map notice overlapping the layer switcher.
The developer, 合同会社SUTEKINA JIKAN, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SUTEKINA JIKAN ,LLC
- Size
- 39.5 MB
- Category
- Weather
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 SUTEKINA JIKAN, LLC
