YamaWeather: Mountain Forecast
Mountain weather before you go
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
YamaWeather puts everything you check before a climb on a single screen — built for hikers, trail runners and mountaineers.
■ Read the mountain, not just the town
・Summit temperature corrected for elevation: enter the height you are climbing and see the temperature up there
・Lightning risk, wind gusts, freezing level, visibility, UV and precipitation as hourly charts
・A good-conditions window is calculated automatically, limited to the hours between sunrise and sunset
・Forecast up to 16 days ahead, pinch to zoom, customizable chart order
■ See the site before you go
・Nearby public restrooms with walking time and map directions
・Nearby mountain huts and campsites
・Nearby peaks with elevation — tap one to apply its elevation to the temperature correction
・Nearby live cameras (links to the official provider pages)
■ Climbing diary (Pro)
・Start and finish times, with moving time calculated for you
・Log the wild vegetables, mushrooms, alpine plants and insects you find
・Weather at the moment of each entry is saved automatically, then analyzed for patterns
・Terrain notes: mark rock bands, fallen trees and steep sections on satellite imagery
・Face ID lock keeps your records yours
■ Built to be trusted
・No account needed, no ads, records stay on your device
・22 languages, dark mode
・Paid features are a one-time purchase — not a subscription
Weather data is an estimate for reference only. Always judge conditions on site and take responsibility for your own decisions. Do not enter the mountain if there is any risk of getting into trouble.
Weather data by Open-Meteo. Peak elevations: Geospatial Information Authority of Japan.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Home Screen widgets
See the current temperature, weather, wind (with gusts) and lightning risk at a glance, plus your next good time window. The medium size adds the next 6 hours. Spots with a saved elevation show elevation-corrected temperatures. Also works on the Lock Screen. Long-press > Edit Widget to choose the spot.
- Improvement
The good time window now ends at sunset.
- Bug fix
Fixed the sample spot coming back after you deleted it.
The developer, HARUNOBU MIURA, 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:
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HARUNOBU MIURA
- Size
- 8.2 MB
- Category
- Weather
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 21 more
- English, Dutch, Filipino, Finnish, French, German, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- やまウェザ Max アップグレード $5.99
- やまウェザ Max $11.99
- やまウェザ Pro $5.99
- Copyright
- © 2026 HUNTER'S DESIGN