Gapyeong weather in May

In May, Gapyeong sees average daytime highs of 22°C and overnight lows near 11°C, with 107 mm of rain across 8.7 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 20°C in the first days to 24°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 24 min by month's end. Set against the rest of the year, May is Gapyeong's 8th-clearest and 6th-windiest month. For the whole year in context, see Gapyeong's year-round climate.

Daytime high
22°
5th warmest
Overnight low
11°
8th coldest
Rainfall
107 mm
8.7 wet days
Daylight
14 hours
5:25 AM – 7:27 PM
Cloud cover
56%
8th clearest
Wind
8 km/h
6th windiest
Solar energy
5.7 kWh/m²
Travel score
6.9
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 24°C by the end.

A typical May day in Gapyeong reaches about 22°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 26°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1209
2209
3209
4209
5219
6219
72110
82110
92110
102110
112110
122110
132111
142211
152211
162211
172211
182211
192212
202312
212312
222312
232312
242312
252313
262413
272413
282413
292413
302414
312414

How May really feels in Gapyeong

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.

Gapyeong 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 / -8°223.83.39.70.0
Feb / -5°284.52.910.50.2
Mar10° / -0°446.62.511.72.5
Apr17° / 808.10.212.95.6
May22° / 11°1078.70146.9
Jun26° / 17°13210.1014.66.5
Jul28° / 21°33918.1014.44.9
Aug28° / 21°28317013.55.0
Sep24° / 15°1338.6012.36.9
Oct19° / 565.70116.7
Nov10° / 5070.8102.7
Dec / -5°265.139.40.0

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 14% of May, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45149
55149
65149
75149
85149
95149
105050
115050
124951
134852
144951
154852
164852
174852
184951
194852
204852
214951
224951
234951
244951
254951
264951
274951
284951
294951
304951
314951

Chance of precipitation in May

Any precipitation

Gapyeong gets around 107 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. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
329
430
530
630
730
830
930
1030
1130
1230
1330
1429
1529
1629
1729
1829
1928
2028
2128
2227
2327
2426
2526
2625
2724
2824
2923
3023
3123

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 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19361
29271
39271
49271
59181
69181
79091
89091
99091
109091
1189101
1289101
1388111
1487121
1587121
1686131
1784142
1882162
1981172
2079183
2177203
2274224
2372235
2470255
2567276
2664297
2761318
2858339
29553510
30523711
31483913

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
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
237calm
247calm
257calm
267calm
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 24 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 5:41 AM to 5:15 AM, and sunset from 7:14 PM to 7:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:417:14
213.65:407:14
313.65:387:15
413.75:377:16
513.75:367:17
613.75:357:18
713.85:347:19
813.85:337:20
913.85:327:21
1013.95:317:22
1113.95:307:23
1213.95:297:24
1313.95:287:25
1414.05:277:25
1514.05:267:26
1614.05:257:27
1714.15:247:28
1814.15:237:29
1914.15:237:30
2014.15:227:31
2114.25:217:32
2214.25:207:32
2314.25:207:33
2414.25:197:34
2514.35:197:35
2614.35:187:36
2714.35:177:36
2814.35:177:37
2914.45:167:38
3014.45:167:39
3114.45:157:39

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.7 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 5.7 kWh/m² in May across the year — May's 5.7 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
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
165.6Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Hazard calendar for Gapyeong

In seasonPeak

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

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

Gapyeong'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 Gapyeong?

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

6.9
Sightseeing
1st-best month of the year
4.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Gapyeong for sightseeing.

What to pack for Gapyeong in May

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

In May, Gapyeong sees daytime highs around 22°C and nights near 11°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Gapyeong 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 Gapyeong peaks around August 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 17UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7Very high
Jul7Very high
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Gapyeong 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 Gapyeong is worst in March — around 123 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyMar 16121 µg/m³Aug 978 µg/m³
PM2.5 (µg/m³)Level
Jan106Unhealthy
Feb108Unhealthy
Mar123Unhealthy
Apr104Unhealthy
May96Unhealthy
Jun91Unhealthy
Jul79Unhealthy
Aug78Unhealthy
Sep97Unhealthy
Oct115Unhealthy
Nov118Unhealthy
Dec100Unhealthy
Location & terrain

Where is Gapyeong?

Gapyeong sits at 37.8°N, 127.5°E, 67 m above sea level, in South Korea. The nearest listed city is Chuncheon, 20 km away.

NamyangjuHwacheonHongch’ŏnWabuYangp'yŏngYangju

Topography around Gapyeong

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

Within 3 km, the terrain around Gapyeong has significant variations in elevation — a maximum elevation change of 365 m around an average of 125 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,213 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,466 m.

The land around Gapyeong is covered by trees (61%) within 3 km, trees (87%) within 16 km, and trees (73%) within 80 km.

3 km
365 m
16 km
1,213 m
80 km
1,466 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Chuncheon 20 km · Hwado 27 km · Namyangju 34 km · Hwacheon 35 km · Hongch’ŏn 36 km · Wabu 37 km · Yangp'yŏng 38 km · Yangju 39 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 Gapyeong (37.831°, 127.5106°, elevation 67 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). 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).