Gumi weather in May

In May, Gumi sees average daytime highs of 25°C and overnight lows near 13°C, with 88 mm of rain across 7.8 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 27°C by the end. The sky is clear or mostly clear about 36% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Gumi's 8th-clearest and 6th-windiest month. For the whole year in context, see Gumi's year-round climate.

Daytime high
25°
5th warmest
Overnight low
13°
8th coldest
Rainfall
88 mm
7.8 wet days
Daylight
13 h 54 min
5:26 AM – 7:20 PM
Cloud cover
56%
8th clearest
Wind
8 km/h
6th windiest
Solar energy
5.85 kWh/m²
Travel score
7.2
out of 10

Gumi is city in North Gyeongsang Province, South Korea.

Density
656/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 23°C in the first days to 27°C by the end.

A typical May day in Gumi reaches about 25°C in the afternoon and slips back to 13°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°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)
12310
22310
32310
42311
52311
62311
72311
82411
92411
102412
112412
122412
132412
142412
152412
162512
172513
182513
192513
202513
212513
222613
232614
242614
252614
262614
272614
282615
292715
302715
312715

How May really feels in Gumi

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.

Gumi 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°233.71.99.80.0
Feb / -3°2941.110.61.3
Mar13° / 556.51.211.74.1
Apr20° / 787.30.112.96.6
May25° / 13°887.8013.97.2
Jun28° / 18°1329.2014.46.0
Jul30° / 22°22414.8014.24.5
Aug30° / 22°21514.5013.44.4
Sep26° / 17°1539.4012.26.7
Oct21° / 10°584.5011.17.4
Nov14° / 374.80.210.14.5
Dec / -2°223.60.89.60.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
45050
55050
65050
74951
84852
94852
104753
114852
124753
134852
144852
154852
164852
174951
184852
194852
205050
215050
225050
235050
245050
255050
265050
274852
284852
294753
304753
314654

Chance of precipitation in May

Any precipitation

Gumi gets around 88 mm of rain over 7.8 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 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
528
628
728
827
927
1027
1127
1227
1326
1426
1526
1625
1725
1825
1924
2024
2124
2224
2324
2423
2523
2623
2723
2822
2922
3022
3122

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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
189821
288921
3871021
4871021
5851131
6851131
7841231
8841231
9841231
10841231
11841231
12831241
13831241
14831241
15821341
16821341
17811441
18811441
19801541
20791551
21781651
22781651
23771751
24751861
25741961
26722071
27712171
28692281
29672481
30652591
316227101

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
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 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 5:40 AM to 5:17 AM, and sunset from 7:07 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:407:07
213.55:397:08
313.55:387:09
413.55:377:10
513.65:367:11
613.65:357:12
713.65:347:13
813.75:337:13
913.75:327:14
1013.75:317:15
1113.85:307:16
1213.85:297:17
1313.85:287:18
1413.95:277:19
1513.95:267:19
1613.95:267:20
1713.95:257:21
1814.05:247:22
1914.05:237:23
2014.05:237:23
2114.05:227:24
2214.15:217:25
2314.15:217:26
2414.15:207:27
2514.15:197:27
2614.25:197:28
2714.25:187:29
2814.25:187:29
2914.25:177:30
3014.25:177:31
3114.35:177:32

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.85 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.51 kWh/m² to a high of 5.85 kWh/m² in May across the year — May's 5.85 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.9Bright
205.9Bright
215.9Bright
226.0Bright
236.0Bright
246.0Bright
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in May

Hazard calendar for Gumi

In seasonPeak

None of Gumi's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Gumi's rainy season runs June–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 Gumi?

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

7.2
Sightseeing
2nd-best month of the year
6.3
Beach & pool
2nd-best month of the year

May is one of the better times to visit Gumi for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Gumi in May

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

In May, Gumi sees daytime highs around 25°C and nights near 13°C. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Gumi in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gumi peaks around August 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 15UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Gumi 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 Gumi is worst in March — around 63 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (August, 35 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorMar 1762 µg/m³Aug 935 µg/m³
PM2.5 (µg/m³)Level
Jan49Poor
Feb54Poor
Mar63Unhealthy
Apr55Unhealthy
May48Poor
Jun44Poor
Jul35Moderate
Aug35Moderate
Sep41Poor
Oct48Poor
Nov53Poor
Dec46Poor
Location & terrain

Where is Gumi?

Gumi sits at 36.1°N, 128.3°E, 63 m above sea level, in South Korea. The nearest listed city is Jenzan, 15 km away.

DaeguSangjuHwawŏnGyeongsan-si

Topography around Gumi

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

Within 3 km, the terrain around Gumi has large variations in elevation — a maximum elevation change of 605 m around an average of 128 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 948 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,578 m.

The land around Gumi is covered by trees (52%) and artificial surfaces (35%) within 3 km, trees (57%) and cropland (21%) within 16 km, and trees (78%) within 80 km.

3 km
605 m
16 km
948 m
80 km
1,578 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Jenzan 15 km · Waegwan 15 km · Gimcheon 19 km · Kunwi 25 km · Daegu 35 km · Sangju 37 km · Hwawŏn 38 km · Gyeongsan-si 48 km

South Korea travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
220 V · 60 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$36,227
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.5
per 100k, 2023
Road deaths
8.6
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 522
Religion
none 60%Protestant 17%Buddhist 16%Catholic 6%

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 Gumi (36.1136°, 128.336°, elevation 63 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).