Haeju weather in May

In May, Haeju sees average daytime highs of 19°C and overnight lows near 12°C, with 92 mm of rain across 7.6 wet days and about 14 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 22°C by the end. The sky is clear or mostly clear about 42% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 24 min by month's end. Set against the rest of the year, May is Haeju's 8th-clearest and 8th-windiest month. For the whole year in context, see Haeju's year-round climate.

Daytime high
19°
5th warmest
Overnight low
12°
8th coldest
Rainfall
92 mm
7.6 wet days
Daylight
14 h 06 min
5:32 AM – 7:35 PM
Cloud cover
52%
8th clearest
Wind
11 km/h
8th windiest
Solar energy
5.92 kWh/m²
Travel score
6.6
out of 10

Haeju is city in North Korea.

Density
1,075/km²
people per km²

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 17°C in the first days to 22°C by the end.

A typical May day in Haeju reaches about 19°C in the afternoon and slips back to 12°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 23°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
11710
21710
31710
41810
51811
61811
71811
81811
91811
101811
111912
121912
131912
141912
151912
161912
171912
182013
192013
202013
212013
222013
232114
242114
252114
262114
272114
282114
292215
302215
312215

How May really feels in Haeju

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.

Haeju 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 / -6°153.22.29.70.0
Feb / -4°203.41.510.50.0
Mar / 294.90.811.71.5
Apr14° / 556.90134.5
May19° / 12°927.60146.6
Jun24° / 18°1058.3014.67.0
Jul26° / 22°27114.4014.45.8
Aug28° / 22°24113.3013.55.8
Sep24° / 17°976.8012.37.4
Oct18° / 11°434.90116.7
Nov10° / 436.40.49.92.7
Dec / -3°194.31.49.40.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% 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 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25248
35248
45149
55149
65149
75149
85149
95248
105248
115248
125248
135248
145347
155347
165446
175446
185545
195545
205644
215644
225644
235743
245743
255644
265644
275644
285545
295545
305446
315347

Chance of precipitation in May

Any precipitation

Haeju gets around 92 mm of rain over 7.6 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 25% and peaks near 27% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
426
527
627
727
827
927
1027
1127
1227
1326
1426
1526
1626
1726
1825
1925
2024
2124
2223
2323
2422
2522
2621
2721
2820
2920
3020
3120

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 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19460
29370
39280
49280
59190
69190
790100
889110
989110
1088120
1187130
1285141
1383161
1481181
1580191
1677221
1774242
1872262
1969292
2066313
2163334
2260364
2357385
2453416
2550437
2646459
27434710
28404812
29374914
30334917
31304920

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 24 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 5:48 AM to 5:22 AM, and sunset from 7:21 PM to 7:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:487:21
213.65:467:22
313.65:457:23
413.75:447:24
513.75:437:25
613.75:427:26
713.85:417:27
813.85:407:28
913.85:397:29
1013.95:387:29
1113.95:377:30
1213.95:367:31
1314.05:357:32
1414.05:347:33
1514.05:337:34
1614.15:327:35
1714.15:317:36
1814.15:307:37
1914.15:297:38
2014.25:297:38
2114.25:287:39
2214.25:277:40
2314.25:267:41
2414.35:267:42
2514.35:257:43
2614.35:257:43
2714.35:247:44
2814.45:237:45
2914.45:237:46
3014.45:227:46
3114.45:227:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.92 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.92 kWh/m² in May across the year — May's 5.92 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
196.0Bright
206.0Bright
216.0Intense
226.0Intense
236.0Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.2Intense
316.2Intense
Planning a trip in May

Hazard calendar for Haeju

In seasonPeak

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

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

Haeju's rainy season runs July–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 Haeju?

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

6.6
Sightseeing
4th-best month of the year
3.1
Beach & pool
5th-best month of the year

May is a reasonable time to visit Haeju for sightseeing.

What to pack for Haeju in May

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

In May, Haeju sees daytime highs around 19°C and nights near 12°C. Worth packing: sun protection. About 8 days see rain.

sun protection

Sea temperature near Haeju 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 20 km away) is warmest in August at about 25°C and coldest in February near 2°C.

It's comfortable for a long swim from Jul 4 to Oct 5 — about 3.1 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan4Bracing
Feb2Bracing
Mar5Bracing
Apr9Bracing
May13Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct18Cool
Nov13Bracing
Dec8Bracing

UV index in Haeju 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 Haeju peaks around July 23 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 23UV 8Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May7Very high
Jun6High
Jul8Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Haeju 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 Haeju is worst in November — around 130 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (July, 58 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyNov 18129 µg/m³Jul 2058 µg/m³
PM2.5 (µg/m³)Level
Jan122Unhealthy
Feb117Unhealthy
Mar121Unhealthy
Apr95Unhealthy
May79Unhealthy
Jun69Unhealthy
Jul58Unhealthy
Aug62Unhealthy
Sep90Unhealthy
Oct115Unhealthy
Nov130Unhealthy
Dec122Unhealthy
Location & terrain

Where is Haeju?

Haeju sits at 38.0°N, 125.7°E, 57 m above sea level, in North Korea. The nearest listed city is Ch’ŏngdan-ŭp, 21 km away.

T’aet’an-ŭpSinch’ŏn-ŭpChaeryŏng-ŭp

Topography around Haeju

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

Within 3 km, the terrain around Haeju has significant variations in elevation — a maximum elevation change of 519 m around an average of 99 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 906 m; within 80 km, large variations in elevation — a maximum elevation change of 1,037 m.

The land around Haeju is covered by artificial surfaces (31%), trees (23%) and grassland (22%) within 3 km, cropland (39%) and trees (26%) within 16 km, and water (36%), cropland (34%) and trees (24%) within 80 km.

3 km
519 m
16 km
906 m
80 km
1,037 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ch’ŏngdan-ŭp 21 km · Sinwŏn-ŭp 22 km · Kangnyŏng 23 km · Ayang-ni 24 km · Ongjin 33 km · T’aet’an-ŭp 37 km · Sinch’ŏn-ŭp 40 km · Chaeryŏng-ŭp 41 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 Haeju (38.0406°, 125.7147°, elevation 57 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).