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
5°
Feels like 3°
Wind↑ NNE 6 km/h
Humidity 61 %
Afternoon
Clear sky
16°
Feels like 16°
Wind↑ NNW 11 km/h
Humidity 44 %
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
8°
Feels like 8°
Wind↑ NE 5 km/h
Humidity 75 %
Afternoon
Clear sky
17°
Feels like 17°
Wind↑ NW 3 km/h
Humidity 46 %
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
9°
Feels like 9°
Wind↑ ENE 4 km/h
Humidity 79 %
Afternoon
Clear sky
19°
Feels like 19°
Wind↑ NW 4 km/h
Humidity 40 %
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
11°
Feels like 11°
Wind↑ ENE 5 km/h
Humidity 70 %
Afternoon
Overcast
18°
Feels like 18°
Wind↑ S 2 km/h
Humidity 49 %
Masan forecast in charts · next 7 days
The week ahead: highs and lows
▲ This week runs +1.5° warmer than usual
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Masan climate: what a normal year looks like
The hottest stretch is August, when afternoons average 30 °C; the coldest is January, when nights average −3 °C. Between those two months the average temperature changes by 26 °C.
Nights typically freeze from December to February, the coldest averaging −3 °C in January.
The wet season is concentrated from June to August, which brings 52% of the annual total; July by itself averages 251 mm.
From 14 h 31 min of daylight in late June to 9 h 47 min in late December.
Forecast highs for the coming week average 17 °C, 4 °C cooler than a normal October (21 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
5 °C
−3 °C
33 mm
Feb
8 °C
−1 °C
39 mm
Mar
12 °C
2 °C
65 mm
Apr
19 °C
7 °C
89 mm
May
24 °C
13 °C
101 mm
Jun
27 °C
18 °C
173 mm
Jul
29 °C
22 °C
251 mm
Aug
30 °C
23 °C
233 mm
Sep
26 °C
17 °C
145 mm
Oct
21 °C
10 °C
56 mm
Nov
15 °C
5 °C
48 mm
Dec
7 °C
−1 °C
34 mm
Whole year
19 °C
9 °C
1,270 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 35.13° N, 126.83° 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 Masan: pollution and pollen
2/6
Fair
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.511µg/m³
PM1012µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Masan
Rain observed over the last two hours by official weather radars around Masan, 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 Masan yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Masan
Waning gibbous
79 % illuminated · 19.3 days
Rise 15:54 Set 06:20
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 Masan
Curious about the weather in Masan on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Masan weather at a glance
This page gathers everything about the weather in Masan, Gwangju: 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 12 °C (feels like 12 °C) and the wind blows at 6 km/h.
Expected range today: 11 °C to 19 °C and a dry sky. 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 Masan 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.
