- RAD Calc
- Radair4D
- Radar & Weather Forecast
- Radar Extreme - NOAA Doppler
- Radar HD Future Weather Radar
- Radar Live: US rain radar map
- Radar MAX Future Weather Radar
- Radar Pro
- Radar del Tiempo- Tiempo local
- Radares da Amazônia - SIPAM
- RadarOmega
- Radiation Map Tracker displays worldwide radiation
- Radio Scanner police
- Llueva o truene: El tiempo
- Alarma de lluvia - Rain Alarm
- Rain Cast
- Rain Cast+
- Rain Harvest
- Rain Harvesting
- Rain Info
- Rain Maps
- Rain Maps
- Radar de lluvia - Mapas meteo
- Rain radar and storm tracker for Japan
- Rain Radar App
- Rain Radar Australia
- Rain Radar Lite - Aus Weather
- Rain Radar New Zealand
- Rain Radar Pro - Aus Weather
- Previsión Tiempo lluvia Radar
- Rain Radar+ AU - BOM Radar
- RainAlertz
- Rainbird - climate risk alarm
- RainbowChase Weather
- Raindrop Weather
- Sleep Relaxation: Sleep Timer
- Walkies Weather
- RainMaker_CWIP
- RainTracker - Daily Weather Gauge
- Alarma de Lluvia: Rain Tracker
- Rainy
- Rainy Day: Better Sleep
- Rainy Days Rain Radar
- Rainy Routes
- Raise and Set Times - Moonrise, moonset, sunrise, sunset times and compass
- Rancherita Clima
- Range Vision
- Rasidweather
- RASP
- RC WINDS
- ReadyMDC
- ReadyTN 2.0
- Mareas y Corrientes HD
- WTHR - today's weather app
- Pronóstico del tiempo real
- Recuerdame
- Red Clock - Weather & Alarm
- Red Stick Ready - Baton Rouge
- Regenmelding
- Reggio Emilia Meteo
- Regionalny System Ostrzegania