Hwawŏn weather in May

In May, Hwawŏn sees average daytime highs of 25°C and overnight lows near 13°C, with 90 mm of rain across 7.4 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 27°C by the end. The sky is clear or mostly clear about 35% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 12 min by month's end. Set against the rest of the year, May is Hwawŏn's 8th-clearest and 6th-windiest month. For the whole year in context, see Hwawŏn's year-round climate.

Daytime high
25°
5th warmest
Overnight low
13°
8th coldest
Rainfall
90 mm
7.4 wet days
Daylight
13 h 54 min
5:26 AM – 7:19 PM
Cloud cover
57%
8th clearest
Wind
8 km/h
6th windiest
Solar energy
5.8 kWh/m²
Travel score
7.2
out of 10

Hwawŏn is human settlement in South Korea.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Hwawŏn reaches about 25°C in the afternoon and slips back to 13°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 30°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12310
22311
32311
42311
52411
62411
72411
82412
92412
102412
112412
122412
132512
142512
152513
162513
172513
182513
192513
202613
212614
222614
232614
242614
252614
262714
272715
282715
292715
302715
312715

How May really feels in Hwawŏn

Once humidity and wind are folded in, May 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

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

Hwawŏn weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°223.319.80.3
Feb / -2°294110.61.7
Mar14° / 596.60.911.74.4
Apr20° / 807.10.112.96.8
May25° / 13°907.4013.97.2
Jun28° / 18°1318.7014.45.9
Jul30° / 22°21013.9014.24.5
Aug30° / 22°19614.2013.44.3
Sep26° / 17°1439012.26.7
Oct21° / 10°574.2011.17.6
Nov14° / 374.50.110.14.9
Dec / -2°223.10.69.61.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24951
34951
44852
54852
64753
74753
84753
94654
104654
114654
124555
134753
144654
154753
164753
174753
184852
194852
204852
214852
224852
234852
244852
254852
264753
274753
284753
294753
304555
314555

Chance of precipitation in May

Any precipitation

Hwawŏn gets around 90 mm of rain over 7.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 26% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
226
326
426
526
626
726
826
926
1026
1126
1226
1325
1425
1525
1624
1724
1824
1923
2023
2123
2223
2322
2422
2522
2622
2722
2822
2921
3021
3121

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
187931
2861031
3851131
4851131
5831241
6831241
7821341
8821341
9821341
10821341
11821341
12821341
13821341
14821341
15821341
16811441
17811441
18801451
19791551
20791551
21791551
22781651
23781651
24771751
25751861
26741961
27732061
28702271
29692371
30662581
31632791

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
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
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:40 AM to 5:17 AM, and sunset from 7:06 PM to 7:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:407:06
213.55:397:07
313.55:387:08
413.55:377:09
513.65:367:10
613.65:357:10
713.65:347:11
813.75:337:12
913.75:327:13
1013.75:317:14
1113.75:307:15
1213.85:297:16
1313.85:287:16
1413.85:277:17
1513.95:267:18
1613.95:267:19
1713.95:257:20
1813.95:247:20
1914.05:237:21
2014.05:237:22
2114.05:227:23
2214.05:217:24
2314.15:217:24
2414.15:207:25
2514.15:207:26
2614.15:197:27
2714.15:187:27
2814.25:187:28
2914.25:177:29
3014.25:177:29
3114.25:177:30

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.8 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 5.8 kWh/m² in May across the year — May's 5.8 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Bright
306.0Bright
316.0Bright
Planning a trip in May

Hazard calendar for Hwawŏn

In seasonPeak

None of Hwawŏn's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Hwawŏn'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 May a good time to visit Hwawŏn?

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

7.2
Sightseeing
2nd-best month of the year
6.5
Beach & pool
2nd-best month of the year

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

What to pack for Hwawŏn in May

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

In May, Hwawŏn sees daytime highs around 25°C and nights near 13°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Hwawŏn in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Hwawŏn peaks around August 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Hwawŏn in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Hwawŏn is worst in March — around 63 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (August, 35 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorMar 1762 µg/m³Aug 935 µg/m³
PM2.5 (µg/m³)Level
Jan49Poor
Feb54Poor
Mar63Unhealthy
Apr55Unhealthy
May48Poor
Jun44Poor
Jul35Moderate
Aug35Moderate
Sep41Poor
Oct48Poor
Nov53Poor
Dec46Poor
Location & terrain

Where is Hwawŏn?

Hwawŏn sits at 35.8°N, 128.5°E, 36 m above sea level, in South Korea. The nearest listed city is Daegu, 11 km away.

GumiMiryangEisen

Topography around Hwawŏn

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

Within 3 km, the terrain around Hwawŏn has significant variations in elevation — a maximum elevation change of 423 m around an average of 73 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,063 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,584 m.

The land around Hwawŏn is covered by trees (38%) and artificial surfaces (37%) within 3 km, trees (59%) and artificial surfaces (21%) within 16 km, and trees (76%) within 80 km.

3 km
423 m
16 km
1,063 m
80 km
1,584 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Daegu 11 km · Gyeongsan-si 22 km · Waegwan 23 km · Changnyeong 29 km · Hayang 31 km · Gumi 38 km · Miryang 41 km · Eisen 43 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 Hwawŏn (35.8017°, 128.5008°, elevation 36 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. 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).