Uiju weather in May

In May, Uiju sees average daytime highs of 21°C and overnight lows near 11°C, with 88 mm of rain across 8.7 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 23°C by the end. The sky is clear or mostly clear about 39% 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 36 min by month's end. Set against the rest of the year, May is Uiju's 9th-clearest and 7th-windiest month. For the whole year in context, see Uiju's year-round climate.

Daytime high
21°
5th warmest
Overnight low
11°
8th coldest
Rainfall
88 mm
8.7 wet days
Daylight
14 h 12 min
5:32 AM – 7:45 PM
Cloud cover
54%
9th clearest
Wind
10 km/h
7th windiest
Solar energy
5.71 kWh/m²
Travel score
6.8
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 23°C by the end.

A typical May day in Uiju reaches about 21°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 17°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)
1198
2198
3198
4198
5198
6199
7209
8209
9209
10209
112010
122010
132110
142110
152110
162111
172111
182111
192211
202211
212212
222212
232212
242312
252312
262313
272313
282313
292313
302413
312413

How May really feels in Uiju

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.

Uiju weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -12°102.52.49.50.0
Feb / -9°193.32.710.40.0
Mar / -2°274.51.711.71.5
Apr15° / 5670.5135.1
May21° / 11°888.7014.26.8
Jun25° / 16°11210.5014.86.6
Jul28° / 21°22014.6014.65.4
Aug28° / 20°22613.9013.65.4
Sep24° / 14°856.8012.37.4
Oct17° / 566.8010.96.0
Nov / -1°466.51.59.81.4
Dec-0° / -9°193.82.89.20.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35248
45248
55149
65050
75050
85050
95050
104951
114951
125050
135050
145050
155050
165149
175248
185248
195347
205446
215545
225545
235644
245743
255743
265644
275644
285644
295545
305347
315347

Chance of precipitation in May

Any precipitation

Uiju gets around 88 mm of rain over 8.7 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 28% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
329
430
530
630
730
830
930
1029
1129
1229
1329
1428
1528
1628
1728
1827
1927
2027
2127
2227
2326
2426
2526
2626
2726
2826
2926
3026
3126

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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19730
29730
39730
49730
59640
69640
79640
89550
99460
109460
119370
129181
139091
1489101
1587121
1686131
1783152
1881172
1980182
2077203
2175223
2272244
2371254
2469274
2566295
2663316
2760337
2857358
29543610
30513811
31473914

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 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
111calm
211calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:49 AM to 5:21 AM, and sunset from 7:30 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:497:30
213.75:477:31
313.85:467:32
413.85:457:33
513.85:447:34
613.95:427:35
713.95:417:36
813.95:407:37
914.05:397:38
1014.05:387:39
1114.15:377:40
1214.15:367:41
1314.15:357:42
1414.25:337:43
1514.25:337:44
1614.25:327:45
1714.35:317:46
1814.35:307:47
1914.35:297:48
2014.35:287:48
2114.45:277:49
2214.45:267:50
2314.45:267:51
2414.55:257:52
2514.55:247:53
2614.55:247:54
2714.55:237:55
2814.65:227:55
2914.65:227:56
3014.65:217:57
3114.65:217:58

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.71 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.16 kWh/m² to a high of 5.71 kWh/m² in May across the year — May's 5.71 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Hazard calendar for Uiju

In seasonPeak

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

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

Uiju's rainy season runs June–August, 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 Uiju?

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

6.8
Sightseeing
2nd-best month of the year
4.2
Beach & pool
5th-best month of the year

May is a reasonable time to visit Uiju for sightseeing.

What to pack for Uiju in May

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

In May, Uiju sees daytime highs around 21°C and nights near 11°C. Worth packing: rain gear and sun protection. About 9 days see rain.

rain gearsun protection

Sea temperature near Uiju in May

The nearest coast averages about 13°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 38 km away) is warmest in August at about 24°C and coldest in February near 1°C.

It's comfortable for a long swim from Jul 2 to Oct 1 — about 3 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar2Bracing
Apr7Bracing
May13Bracing
Jun18Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct18Cool
Nov12Bracing
Dec6Bracing

UV index in Uiju in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Uiju peaks around August 21 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 21UV 7Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr6High
May6High
Jun6High
Jul7High
Aug7High
Sep7High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Uiju 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 Uiju is worst in January — around 65 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (August, 34 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorPoorUnhealthyJan 2065 µg/m³Aug 1235 µg/m³
PM2.5 (µg/m³)Level
Jan65Unhealthy
Feb63Unhealthy
Mar63Unhealthy
Apr55Unhealthy
May45Poor
Jun41Poor
Jul36Poor
Aug34Moderate
Sep41Poor
Oct50Poor
Nov54Poor
Dec59Unhealthy
Location & terrain

Where is Uiju?

Uiju sits at 40.2°N, 124.5°E, 26 m above sea level, in North Korea. The nearest listed city is Sinŭiju, 16 km away.

Sakchu-ŭpKusŏng-siChŏngjuSil-liSinanjuSongwŏnAnju

Topography around Uiju

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

Within 3 km, the terrain around Uiju has only modest variations in elevation — a maximum elevation change of 120 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 504 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,427 m.

The land around Uiju is covered by cropland (72%) within 3 km, trees (40%) and cropland (37%) within 16 km, and trees (54%) and cropland (24%) within 80 km.

3 km
120 m
16 km
504 m
80 km
1,427 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Sinŭiju 16 km · Sakchu-ŭp 49 km · Kusŏng-si 66 km · Chŏngju 81 km · Sil-li 112 km · Sinanju 114 km · Songwŏn 116 km · Anju 116 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 Uiju (40.1994°, 124.5317°, elevation 26 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).