Weathergraph：データ駆動型アドベンチャーのためのプロ仕様の視覚的天気

I built Weathergraph to be the weather app I always wanted — clear visual forecasts, professional-grade data, and zero tracking. Weathergraph is a paid app because forecast APIs aren’t free, and I work daily to keep it the most useful visual weather app out there. Start with a 7-day free trial. Continue with an annual membership that supports ongoing development and premium weather data — or unlock lifetime Pro with a single one-time purchase. WHY OUTDOOR ENTHUSIASTS LOVE WEATHERGRAPH • Up to 7 days of hour-by-hour data in a single glanceable chart — temperature curves, rain bars, wind, clouds, sunshine ... all in one timeline • Widgets with real graphs for Apple Watch, iPhone, iPad, and Mac • Know exactly when rain starts: “Light rain 2:30–3:15 PM,” powered by Rainbow.ai radar + ML. Perfect for runners, cyclists or ski trips. • Rain alerts up to 60 min ahead. Plan your workout, hike, or fishing trip with confidence. • Built for kite surfing and sailing enthusiasts: wind speed + gusts, direction, pressure trends, UV peaks, heat index • Works offline — your forecast stays cached for 24h, and keeps working even in mountains or travels • Privacy-first design — no accounts, no ads, no tracking, no data sharing SEE YOUR WEATHER AT A GLANCE Weathergraph turns raw weather numbers into a visual narrative: • Temperature as a smooth gradient line — instantly spot the warmest hour for your bike ride • Rain & snow as blue bars — taller bars = heavier precipitation • Sunshine breaks shown with actual sun-rays between clouds, highlighting the best time for outdoor activities • Wind visualization with gusts and direction arrows • UV index graph — know when to apply sunscreen (hint: above 3) • Barometer trends to understand pressure-driven changes • Background color changes with the sky from dawn blue to sunset orange • Today's highs and lows marked directly in the chart • Sunrise/sunset times with twilight shading APPLE WATCH APP DONE RIGHT • The only weather app with full hourly graphs on your watch face • Rich complications for every weather metric you care about • Caches your forecast for 24 hours — even when you’re offline on a mountain ridge WIDGETS THAT ACTUALLY HELP • Large widget shows nowcast and hourly charts plus up to week of weather • Quick-glance widgets: UV index with sun protection reminder, wind speed with direction arrow, dew point and comfort scale, sunrise & sunset time ... • Lock screen widgets to see the detailed forecast before you unlock • Stack multiple widgets for your morning weather briefing TRUSTED DATA SOURCES Weathergraph pulls from a curated set of professional forecast systems: • Apple Weather • Rainbow.ai (world-class radar + ML nowcast) • Foreca • Open-Meteo (and its plentahora of national foercast models) • Pirate Weather (NOAA's HRRR, GFS and GEFS models) • yr.no Pilots and surfers check wind graphs before takeoff. Photographers plan golden hour. Skiers know when exactly the blizzard starts. If you loved Dark Sky or Weather Line, you’ll feel right at home. Cleaner than Wunderground, easier than Windy or Windfinder. PRIVACY POLICY AND TERMS OF USE: https://weathergraph.app/privacy Please note: Subscriptions made on Apple devices will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel once activated. Manage or turn off your subscriptions in App Store app > Account > Subscriptions.