Mokpo weather in September

In September, Mokpo sees average daytime highs of 25°C and overnight lows near 20°C, with 149 mm of rain across 8.5 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels muggy.

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 Mokpo's 5th-clearest and 11th-windiest month. For the whole year in context, see Mokpo's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
149 mm
8.5 wet days
Daylight
12 h 12 min
6:22 AM – 6:35 PM
Cloud cover
56%
5th clearest
Wind
12 km/h
11th windiest
Solar energy
4.36 kWh/m²
Travel score
7.0
out of 10

Mokpo is city in South Jeolla Province, South Korea.

Density
5,359/km²
people per km²

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 26°C in the first days to 23°C by the end.

A typical September day in Mokpo reaches about 25°C in the afternoon and slips back to 20°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12722
22722
32622
42622
52621
62621
72621
82621
92621
102621
112620
122520
132520
142520
152520
162520
172519
182519
192519
202419
212419
222418
232418
242418
252418
262418
272317
282317
292317
302317

How September really feels in Mokpo

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.

Mokpo weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 356.82.99.90.2
Feb / 4061.710.70.9
Mar11° / 717.40.411.72.8
Apr15° / 927.8012.85.1
May20° / 14°1027.9013.86.6
Jun23° / 18°1709.5014.36.7
Jul26° / 23°23313.7014.15.8
Aug28° / 24°20413.7013.35.6
Sep25° / 20°1498.5012.27.0
Oct20° / 14°564.7011.17.3
Nov14° / 516.6010.24.5
Dec / 366.71.69.71.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34753
44753
54753
64852
74852
84951
94951
105050
115050
125050
135050
145149
155149
165149
175248
185248
195347
205347
215347
225347
235446
245446
255446
265446
275446
285545
295644
305644

Chance of precipitation in September

Any precipitation

Mokpo gets around 149 mm of rain over 8.5 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 29% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
140
239
338
438
537
636
735
835
934
1033
1133
1232
1331
1430
1529
1628
1727
1826
1925
2025
2124
2224
2323
2423
2523
2622
2722
2822
2922
3021

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10112393611
20213413510
3121442338
4131543327
5131643306
6141744295
7151944284
8162044263
9262143252
10272343232
11382442221
123102541211
134112739191
144122838180
155142936160
165153034150
176163133140
187183231120
198193330110
20820342990
21922342780
221023342570
231124342460
241325342250
251426342140
261627342040
271828331930
282028321720
292228311620
302529301520

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 6:11 AM to 6:33 AM, and sunset from 6:57 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:116:57
212.76:126:56
312.76:136:54
412.76:136:53
512.66:146:51
612.66:156:50
712.56:166:49
812.56:166:47
912.56:176:46
1012.46:186:44
1112.46:196:43
1212.46:196:41
1312.36:206:40
1412.36:216:38
1512.36:226:37
1612.26:226:35
1712.26:236:34
1812.16:246:32
1912.16:256:31
2012.16:256:29
2112.06:266:28
2212.06:276:26
2312.06:286:25
2411.96:286:23
2511.96:296:22
2611.86:306:20
2711.86:316:19
2811.86:316:17
2911.76:326:16
3011.76:336:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.36 kWh/m².

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 5.84 kWh/m² in May across the year — September's 4.36 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for Mokpo

In seasonPeak

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

Mokpo sits in the Pacific typhoon belt; the season peaks July–October.

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

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

Is September a good time to visit Mokpo?

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

7.0
Sightseeing
2nd-best month of the year
6.2
Beach & pool
2nd-best month of the year

September is one of the better times to visit Mokpo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Mokpo in September

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

In September, Mokpo sees daytime highs around 25°C and nights near 20°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Mokpo 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 42 km away) is warmest in August at about 25°C and coldest in February near 7°C.

It's comfortable for a long swim from Jun 28 to Oct 9 — about 3.4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar7Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec11Bracing

UV index in Mokpo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mokpo peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highHighModerateJun 21UV 8Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug8Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Mokpo 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 Mokpo is worst in March — around 43 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (July, 18 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1842 µg/m³Jul 2418 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb36Poor
Mar43Poor
Apr37Poor
May30Moderate
Jun25Moderate
Jul18Moderate
Aug18Moderate
Sep22Moderate
Oct24Moderate
Nov27Moderate
Dec26Moderate
Location & terrain

Where is Mokpo?

Mokpo sits at 34.8°N, 126.4°E, 48 m above sea level, in South Korea. The nearest listed city is Muan, 21 km away.

NajuJangheungYeonggwangMasan

Topography around Mokpo

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

Within 3 km, the terrain around Mokpo has only modest variations in elevation — a maximum elevation change of 188 m around an average of 18 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 382 m; within 80 km, large variations in elevation — a maximum elevation change of 1,133 m.

The land around Mokpo is covered by artificial surfaces (49%) and trees (23%) within 3 km, water (40%), trees (25%) and cropland (21%) within 16 km, and water (55%) and trees (28%) within 80 km.

3 km
188 m
16 km
382 m
80 km
1,133 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Muan 21 km · Sinan 26 km · Yeongam 28 km · Haenam 33 km · Naju 38 km · Jangheung 49 km · Yeonggwang 53 km · Masan 53 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 Mokpo (34.8128°, 126.3918°, elevation 48 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).