Onsŏng weather in May

In May, Onsŏng sees average daytime highs of 18°C and overnight lows near 7°C, with 79 mm of precipitation across 11.8 wet days and about 14.4 hours of daylight. It is the 5th-warmest and 3rd-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 24% of the time in May, and the air most often feels dry.

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

Daytime high
18°
5th warmest
Overnight low
8th coldest
Precipitation
79 mm
11.8 wet days
Daylight
14 h 30 min
5:03 AM – 7:30 PM
Cloud cover
64%
9th clearest
Wind
9 km/h
8th windiest
Solar energy
5.44 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 16°C in the first days to 20°C by the end.

A typical May day in Onsŏng reaches about 18°C in the afternoon and slips back to 7°C overnight — a 11°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 6°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1164
2164
3165
4175
5175
6175
7175
8175
9176
10176
11186
12186
13186
14187
15187
16197
17197
18197
19198
20198
21198
22208
23208
24209
25209
26209
27209
28209
29209
302110
312110

How May really feels in Onsŏng

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.

Onsŏng weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-7° / -18°91.51.99.20.0
Feb-3° / -15°102.12.610.20.0
Mar / -7°2354.211.60.4
Apr13° / 437.42.513.13.6
May18° / 7911.80.314.45.6
Jun22° / 13°7611.7015.16.2
Jul25° / 17°13713.1014.86.2
Aug25° / 17°12912.4013.86.3
Sep21° / 10°658.1012.36.8
Oct13° / 406.30.910.84.3
Nov / -6°264.83.49.50.3
Dec-6° / -15°112.738.90.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24456
34357
44357
54357
64258
74258
84258
94258
104159
114258
124159
134159
144159
154258
164258
174258
184258
194258
204258
214258
224456
234456
244456
254456
264456
274456
284456
294456
304456
314456

Chance of precipitation in May

Any precipitationSnow

Onsŏng gets around 79 mm of rain and snow over 11.8 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 37% and peaks near 39% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1344
2343
3343
4353
5352
6362
7362
8362
9372
10372
11371
12371
13371
14371
15381
16381
17380
18390
19390
20390
21390
22390
23390
24390
25390
26390
27390
28380
29380
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 98% 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
17991
18991
19991
20982
21982
22982
23982
24973
25973
26964
27955
28946
29937
30919
319010

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 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
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 54 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 60 minutes over May. Sunrise moves from 5:21 AM to 4:50 AM, and sunset from 7:13 PM to 7:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:217:13
213.95:207:14
313.95:197:15
414.05:177:16
514.05:167:18
614.15:157:19
714.15:137:20
814.25:127:21
914.25:117:22
1014.25:107:23
1114.35:087:24
1214.35:077:25
1314.35:067:27
1414.45:057:28
1514.45:047:29
1614.55:037:30
1714.55:027:31
1814.55:017:32
1914.65:007:33
2014.64:597:34
2114.64:587:35
2214.74:577:36
2314.74:567:37
2414.74:557:38
2514.74:547:39
2614.84:547:40
2714.84:537:41
2814.84:527:42
2914.94:527:43
3014.94:517:44
3114.94:507:44

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.44 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 5.44 kWh/m² in May across the year — May's 5.44 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
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in May

Hazard calendar for Onsŏng

In seasonPeak

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

Onsŏng's rainy season runs May–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 Onsŏng?

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
2.2
Beach & pool
5th-best month of the year

May is a reasonable time to visit Onsŏng for sightseeing.

What to pack for Onsŏng in May

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

In May, Onsŏng sees daytime highs around 18°C and nights near 7°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

UV index in Onsŏng 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 Onsŏng peaks around August 19 at about 7 (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 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May7High
Jun7High
Jul5High
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Onsŏng 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 Onsŏng is worst in March — around 47 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (August, 17 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 1746 µg/m³Aug 1417 µg/m³
PM2.5 (µg/m³)Level
Jan35Moderate
Feb37Poor
Mar47Poor
Apr36Poor
May28Moderate
Jun22Moderate
Jul19Moderate
Aug17Moderate
Sep21Moderate
Oct26Moderate
Nov29Moderate
Dec29Moderate
Location & terrain

Where is Onsŏng?

Onsŏng sits at 43.0°N, 130.0°E, 83 m above sea level, in North Korea. The nearest listed city is Namyang-nodongjagu, 11 km away.

ŬndŏkAoji-riHoeryŏngSŏnbongUnggiRajin

Topography around Onsŏng

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

Within 3 km, the terrain around Onsŏng has only modest variations in elevation — a maximum elevation change of 172 m around an average of 94 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 762 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,475 m.

The land around Onsŏng is covered by cropland (82%) within 3 km, trees (61%) and cropland (27%) within 16 km, and trees (76%) within 80 km.

3 km
172 m
16 km
762 m
80 km
1,475 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Namyang-nodongjagu 11 km · Namyang 11 km · Ŭndŏk 56 km · Aoji-ri 59 km · Hoeryŏng 61 km · Sŏnbong 75 km · Unggi 76 km · Rajin 82 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 Onsŏng (42.9572°, 129.9933°, elevation 83 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).