Your Personal Sky Assistant
Sun & moon precision, multi-source forecasts, wind visualization, and shadow tools in one clean iPhone app.
Available for iPhone • iOS 18+
Powerful Features
Everything you need to understand and predict the sky, weather, and celestial events.
Smart Profiles
Pre-built views that highlight only the data you need for specific activities. Switch between gardener, photographer, fisherman, and more.
Multi-Source Forecasts
Compare DMI, SMHI, FMI, Yr, Open-Meteo, and OpenWeather forecasts side-by-side for the most accurate predictions.
Live Tracking
Real-time sun & moon tracking with smart notifications for rise/set times and twilight phases.
Celestial Data
Accurate almanacs with rise/set times, moon phases, seasonal trends, and astronomical calculations.
Shadow Calculator
Compute shadow length and direction for any date, time, and location. Perfect for planning and construction.
Environmental Monitor
Real-time environmental safety monitoring system that tracks weather conditions, air quality, UV radiation, pollen levels, and natural disaster alerts for your current location.
See It in Action
Beautiful, intuitive interface designed for iPhone.
Welcome Page
Intuitive menus to access user profiles and tools
Beach Lover Profile
Cloud cover, UV index, optimal tanning slots, shadow calculator, for optimal sunbathing activities.
Fisherman & Hunter Profile
Solunar and tides activites, weather overlays to calculate best fishing conditions.
Celestial Data
Comprehensive library of Sun and moon historical information
Forecasts
Temperatures, Wind speeds, humidities, cloud coverage and conditions to compare 12-hour forecasts data between providers.
2D Moon Tracker
Live 2D and 3D celestian object tracking to quickly identify them in the sky.
Trusted Weather Sources
We aggregate data from the world's most reliable weather services.
🌍OpenWeatherMap
Global forecasts with reliable temperature, precipitation, and wind data covering every corner of the world.
🇳🇴Yr (met.no)
Exceptional accuracy across the Nordics and coastal regions with detailed precipitation forecasts.
🌐Open-Meteo
Hourly data combining multiple national weather models with no API restrictions.
🇫🇮Finnish FMI
High accuracy forecasts for Finland and surrounding Nordic regions.
🇸🇪Swedish SMHI
Detailed weather coverage for Sweden and nearby Scandinavian areas.
🇩🇰Danish DMI
High-resolution regional forecasts for Denmark, Greenland, and Faroe Islands.
Ready to Master the Sky?
Join thousands of users who trust iCaelum for precise weather and celestial data.
Download on the App Store