Sinhyeon weather in May

In May, Sinhyeon sees average daytime highs of 18°C and overnight lows near 15°C, with 139 mm of rain across 7.8 wet days and about 13.8 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 19°C by the end. The sky is clear or mostly clear about 36% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Sinhyeon's 8th-clearest and 11th-windiest month. For the whole year in context, see Sinhyeon's year-round climate.

Daytime high
18°
6th warmest
Overnight low
15°
7th coldest
Rainfall
139 mm
7.8 wet days
Daylight
13 h 48 min
5:27 AM – 7:16 PM
Cloud cover
57%
8th clearest
Wind
17 km/h
11th windiest
Solar energy
5.86 kWh/m²
Travel score
6.1
out of 10

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 19°C by the end.

A typical May day in Sinhyeon reaches about 18°C in the afternoon and slips back to 15°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 20°C. Set against its neighbours, May runs about 3°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11613
21614
31714
41714
51714
61714
71714
81714
91714
101715
111715
121715
131815
141815
151815
161815
171815
181815
191816
201816
211816
221916
231916
241916
251916
261916
271917
281917
291917
301917
312017

How May really feels in Sinhyeon

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.

Sinhyeon weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 364.59.91.0
Feb / 50510.71.7
Mar11° / 957.611.73.0
Apr15° / 11°1328.412.94.6
May18° / 15°1397.813.86.1
Jun21° / 19°1809.314.36.3
Jul25° / 23°25212.814.16.3
Aug26° / 24°2051213.36.3
Sep24° / 21°1729.412.26.9
Oct20° / 16°764.811.17.2
Nov14° / 10°555.410.25.0
Dec / 343.99.72.2

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 12% of May, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35149
45149
55050
65050
74951
84951
94951
104852
114852
124753
134753
144753
154753
164654
174654
184654
194654
204654
214654
224654
234753
244753
254753
264852
274852
284852
294753
304852
314852

Chance of precipitation in May

Any precipitation

Sinhyeon gets around 139 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
1327
1427
1527
1627
1726
1826
1926
2025
2125
2224
2324
2423
2523
2622
2722
2822
2921
3021
3121

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the comfortable band about 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1682930
2663130
3643330
4613540
5603640
6573850
7563950
8534160
9524260
10504370
11484470
12464680
13444790
144249100
153950110
163751120
173453130
183253150
192955160
202755180
212555200
222355220
232155240
241955260
251854280
261653301
271552321
281351351
291249371
301148392
311046423

Wind in May

Winds average 17 km/h in May.

Across May, daily wind ranges from about 15 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3015light breeze
3115light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:41 AM to 5:18 AM, and sunset from 7:04 PM to 7:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:417:04
213.45:407:05
313.45:397:06
413.55:387:07
513.55:377:08
613.55:367:08
713.65:357:09
813.65:347:10
913.65:337:11
1013.75:327:12
1113.75:317:12
1213.75:307:13
1313.75:297:14
1413.85:297:15
1513.85:287:16
1613.85:277:16
1713.85:267:17
1813.95:267:18
1913.95:257:19
2013.95:247:20
2113.95:247:20
2214.05:237:21
2314.05:227:22
2414.05:227:22
2514.05:217:23
2614.15:217:24
2714.15:207:25
2814.15:207:25
2914.15:197:26
3014.15:197:27
3114.15:187:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.86 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.66 kWh/m² to a high of 5.86 kWh/m² in May across the year — May's 5.86 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
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.9Bright
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 Sinhyeon

In seasonPeak

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

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

Sinhyeon's rainy season runs April–September, 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 Sinhyeon?

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

6.1
Sightseeing
6th-best month of the year
2.0
Beach & pool
6th-best month of the year

May is a reasonable time to visit Sinhyeon for sightseeing.

What to pack for Sinhyeon in May

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

In May, Sinhyeon sees daytime highs around 18°C and nights near 15°C. Worth packing: sun protection. About 8 days see rain.

sun protection

Sea temperature near Sinhyeon in May

The nearest coast averages about 17°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 23 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 17 to Nov 5 — about 4.7 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Bracing
May17Cool
Jun20Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Sinhyeon 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 Sinhyeon peaks around August 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highModerateAug 20UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Sinhyeon 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 Sinhyeon is worst in March — around 68 µg/m³ PM2.5 (unhealthy), about 1.6× the cleanest month (August, 42 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorPoorMar 2168 µg/m³Aug 1942 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb58Unhealthy
Mar68Unhealthy
Apr66Unhealthy
May65Unhealthy
Jun55Poor
Jul46Poor
Aug42Poor
Sep44Poor
Oct50Poor
Nov58Unhealthy
Dec48Poor
Location & terrain

Where is Sinhyeon?

Sinhyeon sits at 34.9°N, 128.6°E, 14 m above sea level, in South Korea. The nearest listed city is Kyosai, 5.0 km away.

ChangwonNaesŏBusanKimhae

Topography around Sinhyeon

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

Within 3 km, the terrain around Sinhyeon has significant variations in elevation — a maximum elevation change of 557 m around an average of 118 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 581 m; within 80 km, large variations in elevation — a maximum elevation change of 1,081 m.

The land around Sinhyeon is covered by trees (58%) and artificial surfaces (26%) within 3 km, water (52%) and trees (38%) within 16 km, and water (56%) and trees (33%) within 80 km.

3 km
557 m
16 km
581 m
80 km
1,081 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Kyosai 5.0 km · Geoje 10 km · Tongyeong 19 km · Goseong 30 km · Changwon 39 km · Naesŏ 42 km · Busan 44 km · Kimhae 45 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 Sinhyeon (34.8825°, 128.6267°, elevation 14 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).