Hayang weather in January

In January, Hayang sees average daytime highs of 5°C and overnight lows near -4°C, with 22 mm of precipitation across 3.6 wet days and about 9.8 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 5°C through the month. The sky is clear or mostly clear about 51% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of January to 10 h 12 min by month's end. Set against the rest of the year, January is Hayang's 3rd-clearest and 1st-windiest month. For the whole year in context, see Hayang's year-round climate.

Daytime high
12th warmest
Overnight low
-4°
1st coldest
Precipitation
22 mm
3.6 wet days
Daylight
9 h 48 min
7:40 AM – 5:28 PM
Cloud cover
44%
3rd clearest
Wind
11 km/h
1st windiest
Solar energy
2.9 kWh/m²
Travel score
0.0
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 5°C through the month.

A typical January day in Hayang reaches about 5°C in the afternoon and slips back to -4°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between -0°C and 9°C. Set against its neighbours, January runs about 2°C cooler than December and about 3°C cooler than February.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
15-4
25-4
35-4
45-4
55-4
65-4
75-4
85-4
95-4
104-4
114-4
124-4
134-4
144-4
154-4
164-4
174-4
184-4
194-4
204-4
214-4
224-4
234-4
245-4
255-4
265-4
275-4
285-4
295-4
305-4
315-4

How January really feels in Hayang

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Hayang weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°223.61.59.80.0
Feb / -2°293.91.110.61.2
Mar13° / 576.71.211.73.9
Apr19° / 777.20.112.96.5
May24° / 13°887.5013.97.2
Jun27° / 18°1238.7014.46.4
Jul29° / 22°20513.6014.24.9
Aug30° / 22°19013.6013.44.7
Sep25° / 17°1358.7012.26.8
Oct20° / 10°554.4011.17.4
Nov13° / 354.50.110.14.4
Dec / -2°213.70.89.60.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27228
37228
47228
57030
67030
76931
86832
96733
106535
116436
126337
136238
146238
156139
166139
176139
186139
196139
206139
216139
226337
236337
246436
256535
266634
276733
286733
296733
306733
316832

Chance of precipitation in January

Any precipitationSnow

Hayang gets around 22 mm of rain and snow over 3.6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 12% and peaks near 14% on the wettest days, and about 2 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
193
293
394
494
594
694
794
894
9104
10105
11115
12115
13125
14125
15135
16135
17135
18145
19145
20145
21145
22145
23145
24145
25145
26135
27135
28125
29125
30125
31115

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 11 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 36 min at the start of January to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:40 AM to 7:33 AM, and sunset from 5:16 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:405:16
29.67:405:17
39.67:405:17
49.67:405:18
59.67:405:19
69.77:405:20
79.77:415:20
89.77:415:21
99.77:415:22
109.77:405:23
119.77:405:24
129.77:405:25
139.87:405:26
149.87:405:27
159.87:405:27
169.87:405:28
179.87:395:29
189.97:395:30
199.97:395:31
209.97:385:32
219.97:385:33
229.97:385:34
2310.07:375:35
2410.07:375:36
2510.07:365:37
2610.07:365:38
2710.17:355:39
2810.17:355:40
2910.17:345:41
3010.17:335:42
3110.27:335:43

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.9 kWh/m².

For context, solar energy here swings from a low near 2.57 kWh/m² to a high of 5.82 kWh/m² in May across the year — January's 2.9 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.8Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.8Moderate
122.8Moderate
132.8Moderate
142.8Moderate
152.8Moderate
162.8Moderate
172.9Moderate
182.9Moderate
192.9Moderate
202.9Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.1Moderate
253.1Moderate
263.1Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.3Moderate
313.3Moderate
Planning a trip in January

Hazard calendar for Hayang

In seasonPeak

In January, Hayang sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

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

Hayang'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 January a good time to visit Hayang?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Hayang.

What to pack for Hayang in January

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

In January, Hayang sees daytime highs around 5°C and nights near -4°C. Pack a warm layer and a heavy coat. About 4 days see rain.

a warm layera heavy coat

UV index in Hayang in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hayang 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 highHighModerateAug 15UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Hayang in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Hayang is worst in March — around 66 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (August, 34 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorPoorMar 1865 µg/m³Aug 1535 µg/m³
PM2.5 (µg/m³)Level
Jan51Poor
Feb57Unhealthy
Mar66Unhealthy
Apr60Unhealthy
May55Poor
Jun47Poor
Jul37Poor
Aug34Moderate
Sep39Poor
Oct47Poor
Nov56Unhealthy
Dec47Poor
Location & terrain

Where is Hayang?

Hayang sits at 35.9°N, 128.8°E, 57 m above sea level, in South Korea. The nearest listed city is Eisen, 12 km away.

GyeongjuWaegwanKunwiYeonil

Topography around Hayang

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

Within 3 km, the terrain around Hayang has significant variations in elevation — a maximum elevation change of 263 m around an average of 79 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,147 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,396 m.

The land around Hayang is covered by cropland (34%), trees (25%) and artificial surfaces (24%) within 3 km, trees (57%) and cropland (21%) within 16 km, and trees (68%) within 80 km.

3 km
263 m
16 km
1,147 m
80 km
1,396 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Eisen 12 km · Gyeongsan-si 12 km · Daegu 21 km · Hwawŏn 31 km · Gyeongju 36 km · Waegwan 39 km · Kunwi 42 km · Yeonil 46 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 Hayang (35.9133°, 128.82°, elevation 57 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). 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).