Andong weather in September

In September, Andong sees average daytime highs of 25°C and overnight lows near 16°C, with 133 mm of rain across 8.3 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 29% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Andong's 9th-clearest and 10th-windiest month. For the whole year in context, see Andong's year-round climate.

Daytime high
25°
4th warmest
Overnight low
16°
9th coldest
Rainfall
133 mm
8.3 wet days
Daylight
12 h 12 min
6:13 AM – 6:26 PM
Cloud cover
61%
9th clearest
Wind
8 km/h
10th windiest
Solar energy
3.94 kWh/m²
Travel score
6.9
out of 10

Andong is city in South Korea.

Density
101/km²
people per km²
Founded
~930 CE

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 23°C by the end.

A typical September day in Andong reaches about 25°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12719
22719
32719
42719
52719
62618
72618
82618
92618
102618
112617
122617
132517
142517
152516
162516
172516
182516
192416
202415
212415
222415
232415
242414
252414
262314
272314
282314
292313
302313

How September really feels in Andong

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Andong weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°203.51.69.80.0
Feb / -3°283.81.410.60.8
Mar12° / 526.71.211.73.5
Apr19° / 757.10.112.96.4
May24° / 12°857.4013.97.3
Jun27° / 17°1097.6014.46.6
Jul29° / 21°20513.5014.25.1
Aug29° / 22°18413.1013.45.0
Sep25° / 16°1338.3012.26.9
Oct20° / 514.3011.17.2
Nov13° / 324.70.210.14.1
Dec / -3°203.719.50.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23862
33961
43961
53961
63961
73961
83961
93961
104060
114159
124258
134258
144357
154456
164456
174654
184654
194753
204753
214852
224951
234951
244951
254951
264951
275050
285149
295050
305149

Chance of precipitation in September

Any precipitation

Andong gets around 133 mm of rain over 8.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
137
237
336
436
535
635
734
834
933
1033
1132
1231
1330
1429
1528
1627
1726
1825
1925
2024
2123
2222
2322
2422
2521
2621
2721
2820
2920
3020

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the humid band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11163530171
21173629161
32183728151
43193827130
53203925120
64213924110
75223923100
8623402290
9724402180
10925392070
111026391960
121227381750
131428371650
141629351540
151930341440
162131321330
172332311230
182532291120
192833281020
20303326920
21323425810
22343424710
23373422610
24393421510
25413420510
26443318400
27463217400
28493117300
29513016300
30532915300

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 6:00 AM to 6:24 AM, and sunset from 6:49 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:006:49
212.86:016:48
312.76:026:46
412.76:036:45
512.76:046:43
612.66:046:42
712.66:056:40
812.56:066:39
912.56:076:37
1012.56:086:36
1112.46:086:34
1212.46:096:33
1312.36:106:31
1412.36:116:29
1512.36:126:28
1612.26:136:26
1712.26:136:25
1812.16:146:23
1912.16:156:22
2012.16:166:20
2112.06:176:18
2212.06:186:17
2312.06:186:15
2411.96:196:14
2511.96:206:12
2611.86:216:11
2711.86:226:09
2811.86:236:08
2911.76:236:06
3011.76:246:05

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.94 kWh/m².

For context, solar energy here swings from a low near 2.51 kWh/m² to a high of 5.81 kWh/m² in May across the year — September's 3.94 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Bright
44.0Bright
54.0Moderate
64.0Moderate
74.0Moderate
84.0Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.8Moderate
Planning a trip in September

Hazard calendar for Andong

In seasonPeak

In September, Andong sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Andong's rainy season runs June–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Andong?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.9
Sightseeing
3rd-best month of the year
6.2
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Andong for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Andong in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Andong sees daytime highs around 25°C and nights near 16°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

Sea temperature near Andong in September

The nearest coast averages about 23°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 62 km away) is warmest in August at about 24°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 28 to Oct 19 — about 3.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May16Cool
Jun19Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct20Refreshing
Nov17Cool
Dec15Bracing

UV index in Andong in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Andong peaks around August 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 15UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr7High
May8Very high
Jun7Very high
Jul9Very high
Aug10Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Andong in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Andong is worst in March — around 47 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (September, 21 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1846 µg/m³Sep 921 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb37Poor
Mar47Poor
Apr40Poor
May36Poor
Jun31Moderate
Jul23Moderate
Aug21Moderate
Sep21Moderate
Oct25Moderate
Nov31Moderate
Dec29Moderate
Location & terrain

Where is Andong?

Andong sits at 36.6°N, 128.7°E, 103 m above sea level, in South Korea. The nearest listed city is Yecheon, 26 km away.

KunwiMungyeongJenzanSangjuGumi

Topography around Andong

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Andong.

Within 3 km, the terrain around Andong has only modest variations in elevation — a maximum elevation change of 171 m around an average of 141 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 795 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,546 m.

The land around Andong is covered by trees (43%) and artificial surfaces (31%) within 3 km, trees (69%) within 16 km, and trees (77%) within 80 km.

3 km
171 m
16 km
795 m
80 km
1,546 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Yecheon 26 km · Yeongju 30 km · Cheongsong gun 33 km · Kunwi 39 km · Mungyeong 47 km · Jenzan 53 km · Sangju 53 km · Gumi 61 km

South Korea travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
220 V · 60 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$36,227
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.5
per 100k, 2023
Road deaths
8.6
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 522
Religion
none 60%Protestant 17%Buddhist 16%Catholic 6%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Andong (36.5664°, 128.7227°, elevation 103 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).