GoOut Seoul: Air Quality & UV

Should I go outside today? You no longer need to check air quality numbers one by one. GoOut Seoul combines fine dust, ultrafine dust, ozone, UV index, apparent temperature and rain probability for all 25 districts of Seoul into a single 0-100 go-outside score. Open the map and see at a glance whether your neighborhood is good for going out today. ■ One score instead of five numbers You don't have to interpret each measurement separately. Even if PM2.5 is clean, a dangerous UV index pulls the score down. The worst indicator dominates the score by design, so the number alone tells you whether it's a good day to head out. Great 80+ · Good 60+ · Fair 40+ · Poor 20+ · Stay indoors below 20 ■ Choropleth map of 25 districts Every district is colored by its score. Air quality in Gangnam is not the same as in Eunpyeong, even within Seoul. Tap a district to see PM2.5, PM10, ozone, UV index, apparent temperature and rain probability with values and grades. ■ Ranking All 25 districts, sorted by score. Useful when you are picking where to meet someone or choosing a neighborhood for a walk or a run. ■ Recalculated for you The same weather feels different depending on your condition. Pick a profile and the score is recalculated instantly. · Default - all indicators balanced · Asthma / respiratory - weights fine dust and ozone more heavily · Children / elderly - weights heat waves and cold waves more heavily · Outdoor exercise - stricter on air quality, heat and UV combined For someone with asthma, "poor" air quality costs more points than it does for others. On a day out with a child, heat matters more. The score reflects that difference. ■ Automatic neighborhood detection One tap reads your current location and sets your home district. The map, detail view and morning alert all switch to that district. You can also pick it from a list. ■ Daily morning alert At 7 AM you get your neighborhood's go-outside score as a notification. You can decide whether to go out or bring a mask without opening the app. The alert can be turned off. ■ Built on public data · Korea Meteorological Administration short-term forecast - apparent temperature, rain, wind · AirKorea real-time air quality - PM2.5, PM10, ozone · KMA living weather index - UV index Data refreshes every day at 6 AM. If it becomes stale, the app tells you how many days old it is. Nothing is hidden or dressed up to look better than it is. ■ Made for · Anyone who checks fine dust every morning before grabbing a mask · Parents planning a school run or a stroller walk · Runners and cyclists picking a day to go out · People sensitive to air quality because of asthma or rhinitis · Anyone timing laundry or airing out a room ■ Coverage All 25 districts of Seoul: Gangnam, Gangdong, Gangbuk, Gangseo, Gwanak, Gwangjin, Guro, Geumcheon, Nowon, Dobong, Dongdaemun, Dongjak, Mapo, Seodaemun, Seocho, Seongdong, Seongbuk, Songpa, Yangcheon, Yeongdeungpo, Yongsan, Eunpyeong, Jongno, Jung, Jungnang. ■ Permissions · Location - used only to detect your home district. Coordinates are discarded after the district is determined, and are never stored or sent off your device. You can skip this permission and pick your district from the list instead. · Notifications - used only for the morning alert. Not needed if you don't want it. No sign-up. Your profile and neighborhood setting stay on your device.