Ŭndŏk weather in May

In May, Ŭndŏk sees average daytime highs of 18°C and overnight lows near 8°C, with 89 mm of precipitation across 12.3 wet days and about 14.4 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 20°C by the end. The sky is clear or mostly clear about 26% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 48 min at the start of May to 14 h 54 min by month's end. Set against the rest of the year, May is Ŭndŏk's 9th-clearest and 8th-windiest month. For the whole year in context, see Ŭndŏk's year-round climate.

Daytime high
18°
5th warmest
Overnight low
8th coldest
Precipitation
89 mm
12.3 wet days
Daylight
14 h 24 min
5:02 AM – 7:27 PM
Cloud cover
64%
9th clearest
Wind
8 km/h
8th windiest
Solar energy
5.32 kWh/m²
Travel score
5.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 20°C by the end.

A typical May day in Ŭndŏk 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 25°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)
1165
2165
3176
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
312011

How May really feels in Ŭndŏk

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.

Ŭndŏk 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-5° / -15°1322.39.20.0
Feb-1° / -12°132.62.710.30.0
Mar / -5°254.83.611.60.7
Apr13° / 467.51.813.13.9
May18° / 8912.30.214.45.6
Jun22° / 13°9111.6015.16.1
Jul25° / 18°15513.5014.86.1
Aug25° / 18°16214.1013.76.0
Sep22° / 12°899012.36.8
Oct15° / 476.40.610.85.1
Nov / -5°324.82.99.60.6
Dec-3° / -12°143.13.58.90.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% 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 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34357
44357
54357
64357
74258
84258
94258
104258
114258
124258
134258
144258
154258
164258
174357
184357
194357
204357
214357
224456
234456
244555
254555
264555
274456
284456
294555
304456
314357

Chance of precipitation in May

Any precipitationSnow

Ŭndŏk gets around 89 mm of rain and snow over 12.3 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 38% and peaks near 42% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1342
2342
3342
4352
5351
6351
7361
8361
9371
10371
11371
12381
13381
14380
15390
16390
17390
18400
19400
20410
21410
22420
23420
24420
25410
26410
27410
28400
29400
30400
31390

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
510000
610000
710000
810000
99910
109910
119910
129910
139910
149910
159910
169820
179820
189820
199820
209730
219730
229640
239640
249550
259460
269370
279280
2890100
2987121
3085141
3183161

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 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 48 min at the start of May to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 5:21 AM to 4:50 AM, and sunset from 7:11 PM to 7:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:217:11
213.95:207:12
313.95:187:13
414.05:177:14
514.05:167:15
614.05:147:16
714.15:137:18
814.15:127:19
914.25:107:20
1014.25:097:21
1114.25:087:22
1214.35:077:23
1314.35:067:24
1414.35:057:25
1514.45:047:26
1614.45:027:27
1714.45:017:28
1814.55:007:29
1914.55:007:30
2014.54:597:31
2114.64:587:32
2214.64:577:33
2314.64:567:34
2414.74:557:35
2514.74:547:36
2614.74:547:37
2714.84:537:38
2814.84:527:39
2914.84:527:40
3014.84:517:41
3114.94:507:42

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.32 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.04 kWh/m² to a high of 5.32 kWh/m² in May across the year — May's 5.32 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Ŭndŏk

In seasonPeak

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

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

Ŭndŏk's rainy season runs May–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 Ŭndŏk?

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

5.6
Sightseeing
5th-best month of the year
2.1
Beach & pool
5th-best month of the year

May is a reasonable time to visit Ŭndŏk for sightseeing.

What to pack for Ŭndŏk in May

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

In May, Ŭndŏk sees daytime highs around 18°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Ŭndŏk 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 44 km away) is warmest in August at about 22°C and coldest in February near 3°C.

It's comfortable for a long swim from Jul 31 to Sep 8 — about 1.3 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan3Bracing
Feb3Bracing
Mar3Bracing
Apr5Bracing
May9Bracing
Jun14Bracing
Jul19Cool
Aug22Refreshing
Sep20Cool
Oct16Cool
Nov11Bracing
Dec7Bracing

UV index in Ŭndŏk 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 Ŭndŏk peaks around August 19 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowAug 19UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May7High
Jun7High
Jul5Moderate
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Ŭndŏk 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 Ŭndŏk is worst in March — around 49 µg/m³ PM2.5 (poor), about 4.7× the cleanest month (August, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodModerateMar 1548 µg/m³Aug 2110 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb42Poor
Mar49Poor
Apr39Poor
May22Moderate
Jun14Moderate
Jul12Moderate
Aug10Good
Sep11Good
Oct16Moderate
Nov19Moderate
Dec19Moderate
Location & terrain

Where is Ŭndŏk?

Ŭndŏk sits at 42.5°N, 130.3°E, 48 m above sea level, in North Korea. The nearest listed city is Aoji-ri, 5.0 km away.

HoeryŏngOnsŏngNamyangNamyang-nodongjagu

Topography around Ŭndŏk

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

Within 3 km, the terrain around Ŭndŏk has significant variations in elevation — a maximum elevation change of 279 m around an average of 85 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,129 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,550 m.

The land around Ŭndŏk is covered by cropland (63%) within 3 km, trees (65%) and cropland (20%) within 16 km, and trees (54%) and water (26%) within 80 km.

3 km
279 m
16 km
1,129 m
80 km
1,550 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Aoji-ri 5.0 km · Sŏnbong 19 km · Unggi 21 km · Rajin 30 km · Hoeryŏng 49 km · Onsŏng 56 km · Namyang 62 km · Namyang-nodongjagu 62 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 Ŭndŏk (42.5188°, 130.3348°, 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).