10-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
11°
Feels like 11°
Wind↑ NNW 17 km/h
Humidity 46 %
Afternoon
Clear sky
15°
Feels like 15°
Wind↑ NW 3 km/h
Humidity 41 %
11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
14°
Feels like 14°
Wind↑ NW 14 km/h
Humidity 60 %
Afternoon
Partly cloudy
16°
Feels like 16°
Wind↑ W 12 km/h
Humidity 53 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
15°
Feels like 15°
Wind↑ NW 14 km/h
Humidity 66 %
Afternoon
Clear sky
18°
Feels like 18°
Wind↑ WSW 8 km/h
Humidity 52 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
16°
Feels like 16°
Wind↑ N 9 km/h
Humidity 62 %
Afternoon
Partly cloudy
18°
Feels like 18°
Wind↑ ENE 15 km/h
Humidity 66 %
Busan forecast in charts · next 7 days
The week ahead: highs and lows
≈ A week close to the usual temperatures
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Busan climate: what a normal year looks like
The hottest stretch is August, when afternoons average 29 °C; the coldest is January, when nights average −1 °C. Between those two months the average temperature changes by 24 °C.
Freezing nights are typical in January only (−1 °C on average).
From 14 h 31 min of daylight in late June to 9 h 47 min in late December.
A normal year brings roughly 1,330 mm of rain — more than 69% of the towns of 20,000+ people we compared it with.
Forecast highs for the coming week average 18 °C, 4 °C cooler than a normal October (22 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
7 °C
−1 °C
33 mm
Feb
10 °C
1 °C
43 mm
Mar
13 °C
4 °C
81 mm
Apr
19 °C
9 °C
114 mm
May
23 °C
14 °C
118 mm
Jun
25 °C
18 °C
168 mm
Jul
28 °C
22 °C
242 mm
Aug
29 °C
24 °C
217 mm
Sep
26 °C
19 °C
165 mm
Oct
22 °C
13 °C
73 mm
Nov
16 °C
7 °C
48 mm
Dec
9 °C
0 °C
29 mm
Whole year
19 °C
11 °C
1,330 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 35.10° N, 129.03° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Busan: pollution and pollen
2/6
Fair
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.512µg/m³
PM1012µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Busan
Rain observed over the last two hours by official weather radars around Busan, followed by the radar forecast for the next hour where the weather service provides one.
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Rain radarLast two hours, then forecast where available · drag the timeline
No open weather radar covers Busan yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Busan
Waning gibbous
79 % illuminated · 19.3 days
Rise 15:45 Set 06:11
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Wed11/113%
Moonrise and moonset in local time (Asia/Seoul); phase and lit fraction from a synodic calculation.
Look up a past day in Busan
Curious about the weather in Busan on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Busan weather at a glance
This page gathers everything about the weather in Busan, Busan: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “drizzle”, it is 16 °C (feels like 16 °C) and the wind blows at 11 km/h.
Expected range today: 16 °C to 19 °C and around 1 mm of rain. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Busan forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
