Your comprehensive weather companion. Stay informed with accurate forecasts and elegant design.
With Nimbus, you can explore detailed weather data for your location and beyond. We offer comprehensive features to keep you informed and prepared:
- Current Weather Conditions: Stay up-to-date with real-time weather in your area.
- Hourly Forecasts: Plan your day with detailed hourly weather predictions.
- 7-Day Outlook: Get a complete week-long weather forecast at your fingertips.
- 6-Hour Rain Forecast: High-resolution precipitation predictions using Open-Meteo's specialized minutely/15-minute data:
- Interactive chart with precipitation intensity over time
- 15-minute resolution data when available (hourly fallback)
- Touch tooltips showing exact precipitation values
- 30-minute offline caching for improved performance
- Always uses Open-Meteo regardless of weather provider setting
- Toggleable in Settings → Weather Provider
- Live Weather Radar: Interactive radar map with animated precipitation overlays powered by RainViewer:
- Real-time precipitation visualization
- Animated playback with timeline controls
- 9 customizable color schemes (TITAN, NEXRAD, Weather Channel, Dark Sky, and more)
- Dynamic legend showing precipitation intensity
- Location centering and interactive map controls
- Tide Predictions: Comprehensive tide information with multiple data sources:
- Stormglass API: Global coverage with lat/lon-based predictions (10 requests/day free)
- Multiple saved locations with geocoding search
- 24-hour offline caching to conserve API quota
- Configurable datum selection (MLLW, MLW, MSL, MHW, MHHW)
- UK Tidal API - Discovery: Authoritative UK tide data from the UK Hydrographic Office
- 608+ tide stations across the UK, Channel Islands, and Gibraltar
- Station-based predictions using official tidal constants
- Searchable station browser with real-time filtering
- Save multiple stations with primary station selection
- LAT (Lowest Astronomical Tide) datum standard
- No caching - always provides fresh predictions
- UK Environment Agency: Real-time water levels for England (interpolated predictions)
- Interactive 24-hour tide chart with axis labels
- Current tide level and height display
- Upcoming high and low tide times
- Toggle between real and dummy data for testing
- Stormglass API: Global coverage with lat/lon-based predictions (10 requests/day free)
- Detailed Weather Data: Access comprehensive weather statistics including temperature, humidity, wind speed, precipitation probability, UV index, and more.
- Weather Alerts: Receive timely notifications about significant weather changes and conditions, including:
- Official government weather warnings via MET Norway MetAlerts (Nordic region)
- Global weather alerts via Open-Meteo
- Location-based filtering (150km radius)
- Alert history tracking with severity levels
- Air Quality Index (AQI): Monitor air quality with:
- Real-time AQI data for your location
- Multiple AQI standards (US EPA and European CAQI)
- Pollutant breakdowns (PM2.5, PM10, O₃, NO₂, SO₂, CO)
- Color-coded health recommendations
- 1-hour caching to reduce API calls
- Manual cache inspection and clearing
- Aurora Watch: Track northern lights activity with comprehensive space weather monitoring:
- Real-time Kp-index from NOAA Space Weather Prediction Center
- AuroraWatch UK alerts for the United Kingdom
- 3-day aurora forecast with hourly predictions
- Solar wind speed and density monitoring from DSCOVR satellite
- Recent solar flare activity (M-class and X-class flares)
- Activity levels and visibility indicators
- Color-coded alerts based on geomagnetic activity
- Global significant earthquake data (4.5+ magnitude) from USGS
- NWS weather alerts for the United States
- Configurable notification threshold (Kp 5-9)
- 30-minute caching for optimal performance
- Toggle visibility and notifications in settings
- Earth Events: Monitor natural disasters and terrestrial events worldwide:
- USGS Earthquakes: Global significant earthquakes (4.5+ magnitude) from past week
- Magnitude, location, and tsunami warnings
- Color-coded severity indicators
- Interactive map view with markers
- NASA FIRMS Wildfires: Real-time satellite wildfire detection
- Fire Radiative Power (FRP) and brightness data
- Confidence levels and acquisition times
- Severity classification by intensity
- GDACS Global Disasters: Worldwide disaster alerts
- Earthquakes, cyclones, floods, and volcanic activity
- Alert level classifications (Green, Orange, Red)
- Event descriptions and affected regions
- NASA EONET Natural Events: Earth Observatory event tracker
- Wildfires, severe storms, volcanoes, floods, droughts
- 30-day rolling window of active events
- Category-based filtering and icons
- NWS Weather Alerts: US National Weather Service warnings
- Location-based alerts with severity levels
- Event type and urgency classifications
- Interactive map overlay showing all events with color-coded markers
- Filter controls to toggle event types on/off
- Tap markers for detailed event information
- Pull-to-refresh for latest data
- Toggle visibility in settings
- USGS Earthquakes: Global significant earthquakes (4.5+ magnitude) from past week
- Moon Phases: Comprehensive lunar information with:
- Current moon phase with emoji visualization
- Phase name and illumination percentage
- Progress indicator through lunar cycle
- Predictions for next full and new moon
- Educational information about moon phases
- Astronomical calculations using Julian Date method
- UK Flood Monitoring: Real-time flood and river data across the UK with:
- Active flood warnings and alerts from regional agencies
- England: Environment Agency flood warnings and river monitoring stations
- Scotland: SEPA (Scottish Environment Protection Agency) warnings only
- Wales: Natural Resources Wales flood alerts only
- Northern Ireland: Limited data availability (no public API)
- Interactive map showing flood areas and monitoring stations
- Severity levels (Severe Warning, Warning, Alert)
- River level monitoring stations (England only)
- Configurable search radius (25-200km, default 100km)
- Location-based filtering with distance calculations
- Color-coded warning indicators
- Detailed warning information and updates
- Toggle visibility and notifications in settings
- Agriculture Data: Comprehensive farming and crop management information with:
- Soil moisture monitoring at multiple depths (0-1cm, 1-3cm, 3-9cm, 9-27cm, 27-81cm)
- Soil temperature at different levels (surface, 6cm, 18cm, 54cm)
- ET₀ FAO Reference Evapotranspiration for irrigation planning
- Vapour Pressure Deficit (VPD) for plant stress assessment
- Growing Degree Days (GDD) calculations for crop development
- 48-hour soil condition forecasts with interactive charts
- 7-day agricultural weather forecast
- Real-time conditions and recommendations
- Toggle visibility in settings
- Marine Conditions: Ocean and wave data for maritime activities with:
- Total wave height and wind wave height monitoring
- Swell wave analysis (long-period waves from distant storms)
- Ocean current velocity and direction
- Wave period measurements and characteristics
- 48-hour wave height and swell forecasts with interactive charts
- 7-day marine forecast with dominant wave direction
- Wave categories (Calm, Smooth, Slight, Moderate, Rough, etc.)
- Safety recommendations based on current conditions
- Toggle visibility in settings
- Hiking Conditions: Comprehensive outdoor trail weather data with:
- UV index monitoring with hourly forecasts
- Visibility tracking for safe navigation
- Wind speed, gusts, and direction analysis
- Snow depth and freezing level information
- Trail condition ratings (Excellent, Good, Fair, Poor, Hazardous)
- 48-hour UV index and visibility charts
- 7-day hiking forecast with weather metrics
- Temperature, feels-like, and precipitation data
- Safety recommendations for outdoor activities
- Toggle visibility in settings
- Elevation Data: View elevation above sea level for any location
- Multi-Language Support: Choose from a wide range of language options.
- Offline Access: View cached weather data even without an internet connection.
- Multiple Locations: Add and manage weather for multiple cities.
- Flexible Units: Switch between metric and imperial measurement systems.
- Temperature Preferences: Choose Celsius or Fahrenheit display.
- Time Format Options: Select 12-hour or 24-hour time display.
- Weather Provider Selection: Dedicated settings section for weather data sources:
- Choose between Open-Meteo, MET Norway, Hybrid, WeatherAPI, PirateWeather, or Nimbus Meteo
- Option to prefer MET Norway in Hybrid mode (override automatic region detection)
- API key configuration for WeatherAPI and PirateWeather
- Toggle 6-hour rain forecast chart visibility
- Located in Settings → Weather Provider
- Customisable Notifications: Stay informed with configurable weather alerts with minimum severity filtering.
- Home Screen Widgets: Quick weather access with customisable home screen widgets (Android):
- Current Weather Widget: Displays current conditions with temperature, description, and key metrics
- Detailed Forecast Widget: Comprehensive current weather with friendly AI-generated summaries
- Hourly Forecast Widget: Journal-style widget showing next 4 hours with temperature, wind, and precipitation
- Daily Forecast Widget: 6-day outlook with high/low temps, weather icons, wind, and precipitation probability
- Compact Widget: Minimalist design with current time, date, location, temperature, and conditions
- Customizable background and text colors for all widgets
- Automatic updates every 15 minutes
- All widgets support light/dark themes
- Modern Material Design: Beautiful, intuitive interface with dark mode support.
Weather data is powered by multiple sources for optimal accuracy and coverage:
- Open-Meteo: Primary weather data provider with global coverage, offering accurate forecasts, historical data, and weather alerts.
- MET Norway: Official weather service from the Norwegian Meteorological Institute, providing:
- Superior forecast accuracy for Nordic countries (Norway, Sweden, Finland, Denmark, Iceland)
- Official weather alerts (MetAlerts) from national meteorological services
- High-precision Nowcast with 2-hour precipitation forecasts (5-minute updates)
- Specialized radar imagery for Nordic region
- WeatherAPI: Commercial weather API with comprehensive forecast data:
- Global coverage with high-quality weather data
- Up to 10-day forecasts (free tier)
- Air quality index and weather alerts included
- Requires free API key (available at weatherapi.com)
- Falls back to Open-Meteo for supplemental data
- PirateWeather: Free, open-source weather API compatible with Dark Sky:
- High-quality forecast data powered by open weather models
- Dark Sky API compatibility for seamless integration
- Community-driven with transparent data sources
- Requires free API key from pirateweather.net
- Supplemented by Open-Meteo for alerts and air quality
- Hybrid Mode: Intelligent data source selection that automatically uses:
- MET Norway for Nordic locations (54°N-72°N, 4°W-32°E)
- Open-Meteo for global locations
- Enhanced short-term precipitation forecasting
- Official government weather warnings when available
Location search utilises Open-Meteo's Geocoding API for easy city discovery. Live radar imagery is provided by RainViewer with support for multiple color schemes and real-time precipitation tracking.
Tide Data Sources:
- Stormglass.io: Global tide predictions with optional API key integration (10 free requests per day)
- UK Tidal API - Discovery: Official UK tide data from the UK Hydrographic Office with 608+ monitoring stations
- Environment Agency: Real-time water levels for England
Earth Events Data Sources:
- USGS Earthquake Catalog: Real-time earthquake data from the United States Geological Survey
- NASA FIRMS: Fire Information for Resource Management System with VIIRS satellite data
- GDACS: Global Disaster Alert and Coordination System
- NASA EONET: Earth Observatory Natural Event Tracker
- NWS API: National Weather Service alerts for the United States
Short-term rain forecasts utilize Open-Meteo's Minutely API for high-resolution 15-minute precipitation data. UK flood monitoring data is provided by the Environment Agency (England - warnings and monitoring stations), SEPA (Scotland - warnings only), and Natural Resources Wales (Wales - warnings only). Northern Ireland's DfI Rivers does not currently provide a public API for automated flood data access.
Weather Provider Selection: Choose your preferred weather data source in Settings → Weather Provider:
- Open-Meteo: Global coverage with free access (default)
- MET Norway: Best for Nordic countries with official government data
- Hybrid: Automatically selects the best source for your location
- WeatherAPI: Commercial API with comprehensive forecasts (requires free API key)
- PirateWeather: Open-source Dark Sky alternative (requires free API key)
- Nimbus Meteo: Self-hosted Open-Meteo instance for enhanced privacy
Get the latest APK from the Releases Section.
This project is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Nimbus is a fork of Rain by DarkMooNight. We extend our gratitude to the original developers and contributors.