Hwasŏng weather in May

In May, Hwasŏng sees average daytime highs of 18°C and overnight lows near 8°C, with 73 mm of precipitation across 11.3 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 20°C by the end. The sky is clear or mostly clear about 30% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Hwasŏng's 9th-clearest and 3rd-windiest month. For the whole year in context, see Hwasŏng's year-round climate.

Daytime high
18°
5th warmest
Overnight low
8th coldest
Precipitation
73 mm
11.3 wet days
Daylight
14 h 18 min
5:09 AM – 7:27 PM
Cloud cover
61%
9th clearest
Wind
7 km/h
3rd windiest
Solar energy
5.61 kWh/m²
Travel score
5.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 20°C by the end.

A typical May day in Hwasŏng reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 24°C. Set against its neighbours, May runs about 6°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1165
2166
3166
4176
5176
6176
7176
8177
9177
10177
11187
12187
13187
14188
15188
16188
17198
18198
19199
20199
21199
22199
23199
24209
252010
262010
272010
282010
292010
302010
312010

How May really feels in Hwasŏng

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.

Hwasŏng 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° / -14°266.78.59.40.0
Feb-2° / -13°245.46.310.30.0
Mar / -6°316.45.811.70.4
Apr12° / 477.93.513.13.6
May18° / 7311.30.514.35.7
Jun22° / 13°7712.5014.96.0
Jul25° / 17°14315.4014.75.8
Aug25° / 18°17416.7013.75.7
Sep21° / 12°1098.9012.36.6
Oct15° / 557.10.810.95.1
Nov / -3°518.15.29.70.9
Dec-2° / -10°408.89.89.10.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24951
34852
44753
54753
64753
74555
84555
94555
104456
114456
124456
134456
144555
154654
164654
174555
184654
194654
204654
214555
224654
234852
244852
254852
264852
274852
284852
294753
304753
314654

Chance of precipitation in May

Any precipitationSnow

Hwasŏng gets around 73 mm of rain and snow over 11.3 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 36% and peaks near 41% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1306
2305
3305
4305
5304
6314
7313
8323
9323
10333
11342
12342
13352
14362
15372
16382
17391
18391
19401
20401
21411
22411
23411
24401
25401
26401
27391
28391
29390
30380
31380

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
11991
12991
13991
14991
15991
16991
17982
18982
19982
20982
21973
22973
23964
24964
25955
26946
27937
28928
299010
308812
318614

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:27 AM to 4:58 AM, and sunset from 7:12 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:277:12
213.85:257:13
313.85:247:14
413.95:237:15
513.95:227:16
613.95:207:17
714.05:197:18
814.05:187:19
914.15:177:20
1014.15:157:21
1114.15:147:22
1214.25:137:23
1314.25:127:24
1414.25:117:25
1514.35:107:26
1614.35:097:27
1714.35:087:28
1814.45:077:29
1914.45:067:30
2014.45:057:31
2114.55:057:32
2214.55:047:33
2314.55:037:34
2414.65:027:35
2514.65:017:36
2614.65:017:37
2714.65:007:38
2814.74:597:39
2914.74:597:40
3014.74:587:40
3114.74:587:41

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.61 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2 kWh/m² to a high of 5.61 kWh/m² in May across the year — May's 5.61 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
85.5Bright
95.5Bright
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in May

Hazard calendar for Hwasŏng

In seasonPeak

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

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

Hwasŏng's rainy season runs July–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 May a good time to visit Hwasŏng?

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

5.7
Sightseeing
4th-best month of the year
2.1
Beach & pool
5th-best month of the year

May is a reasonable time to visit Hwasŏng for sightseeing.

What to pack for Hwasŏng in May

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

In May, Hwasŏng sees daytime highs around 18°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Hwasŏng in May

The nearest coast averages about 9°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 35 km away) is warmest in August at about 22°C and coldest in February near 4°C.

It's comfortable for a long swim from Jul 27 to Sep 12 — about 1.6 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan5Bracing
Feb4Bracing
Mar4Bracing
Apr6Bracing
May9Bracing
Jun14Bracing
Jul19Cool
Aug22Refreshing
Sep20Cool
Oct16Cool
Nov12Bracing
Dec8Bracing

UV index in Hwasŏng in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hwasŏng peaks around August 18 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowAug 18UV 8Dec 19UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun7High
Jul6High
Aug8Very high
Sep7High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Hwasŏng 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 Hwasŏng is worst in April — around 42 µg/m³ PM2.5 (poor), about 3.5× the cleanest month (August, 12 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateModerateApr 1241 µg/m³Aug 2112 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb28Moderate
Mar38Poor
Apr42Poor
May28Moderate
Jun17Moderate
Jul14Moderate
Aug12Good
Sep12Moderate
Oct17Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Hwasŏng?

Hwasŏng sits at 41.3°N, 129.5°E, 98 m above sea level, in North Korea. The nearest listed city is Myŏnggan-dong, 13 km away.

KiljuKyŏngsŏngHwadaeRanamChongjin

Topography around Hwasŏng

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

Within 3 km, the terrain around Hwasŏng has significant variations in elevation — a maximum elevation change of 337 m around an average of 147 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,245 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,500 m.

The land around Hwasŏng is covered by cropland (73%) within 3 km, trees (53%) and cropland (30%) within 16 km, and trees (56%) and water (30%) within 80 km.

3 km
337 m
16 km
1,245 m
80 km
2,500 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Myŏnggan-dong 13 km · Myŏngch’ŏn 21 km · Ŏrang 25 km · Kilju 35 km · Kyŏngsŏng 38 km · Hwadae 46 km · Ranam 53 km · Chongjin 65 km

North Korea travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
220 V · 50 Hz
Safe drinking water
67%
of population, 2023
Road deaths
24.2
per 100k/yr, 2019
Income group
Low
World Bank

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 Hwasŏng (41.2556°, 129.4928°, elevation 98 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).