worldweather

Weather in Gangneung - 14-day forecast

Detailed weather forecast for Gangneung, South Korea: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Gangneung
today🌧️ 22°💧 1.6 mm
Sun🌧️ 22°💧 5.2 mm
Mon🌧️ 23°💧 0.6 mm
Tue☀️ 25°💧 0.3 mm
Wed🌧️ 18°💧 9.7 mm
Thu☁️ 21°💧 0.2 mm
Fri☁️ 23°💧 82.7 mm
Sat☀️ 24°💧 70.4 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Wednesday 9 Sept in Gangneung, the forecast high is 18°C. Typical daytime temperatures at this time of year range from 21°C to 25°C, so it will be exceptionally cool. It is cooler than 99% of similar days.

22°Cnear normal
usually 22°C–25°C
night: near normal rain: typical rainfall wind: typical
22°Cnear normal
usually 21°C–25°C
night: warmer than usual rain: more rain than usual wind: typical
23°Cnear normal
usually 21°C–25°C
night: cooler than usual rain: typical rainfall wind: typical
25°Cwarmer than usual
usually 21°C–25°C
warmer than 77% of similar days
night: near normal rain: typical rainfall wind: exceptionally light
18°Cexceptionally cool
usually 21°C–25°C
cooler than 99% of similar days
night: exceptionally cool rain: more rain than usual wind: stronger than usual
21°Ccooler than usual
usually 21°C–25°C
cooler than 77% of similar days
night: cooler than usual rain: typical rainfall wind: lighter than usual
23°Cnear normal
usually 21°C–25°C
night: near normal rain: exceptionally wet wind: exceptionally light

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
15°23°30° 1981: 23°C1982: 22°C1983: 22°C1984: 23°C1985: 25°C1986: 23°C1987: 22°C1988: 24°C1989: 23°C1990: 24°C1991: 24°C1992: 24°C1993: 21°C1994: 25°C1995: 21°C1996: 23°C1997: 24°C1998: 26°C1999: 25°C2000: 20°C2001: 23°C2002: 22°C2003: 23°C2004: 22°C2005: 23°C2006: 20°C2007: 22°C2008: 24°C2009: 23°C2010: 24°C2011: 23°C2012: 22°C2013: 23°C2014: 24°C2015: 22°C2016: 24°C2017: 25°C2018: 23°C2019: 25°C2020: 23°C2021: 24°C2022: 23°C2023: 25°C2024: 27°C2025: 26°C 2026 forecast: 22°C current forecast 22°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 23°C by day. The coolest year was 2006 (20°C) and the warmest was 2024 (27°C). The current forecast averages 22°C - lower than in 82% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Gangneung

Gangneung - 14-day weather forecast infographic

Gangneung 30 & 45-day weather - long-range outlook

Next 16 days · forecast
23°
around 19° at night · days with rain: 9
Weeks 3-4 · avg for September
22°
around 17° at night · rain chance 29%
Weeks 5-7 · avg for October
19°
around 12° at night · rain chance 19%
The 30 & 45-day outlook for Gangneung: the next 16 days are a numerical forecast updated daily - on average 23° by day and 19° at night. Further out we rely on multi-year climate averages: around 22° in September, and about 19° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Gangneung

Saturday5 September 2026
🌧️22°light rain
sunrise 05:57 · sunset 18:49 · night 20° · evening 21° · rain 1.63 mm · humidity 69% · wind 5 m/s · clouds 98%
Sunday6 September 2026
🌧️22°light rain
sunrise 05:58 · sunset 18:47 · night 20° · evening 22° · rain 5.16 mm · humidity 81% · wind 5 m/s · clouds 88%
Monday7 September 2026
🌧️23°light rain
sunrise 05:59 · sunset 18:46 · night 17° · evening 21° · rain 0.57 mm · humidity 63% · wind 5 m/s · clouds 92%
Tuesday8 September 2026
☀️25°clear sky
sunrise 06:00 · sunset 18:44 · night 19° · evening 21° · rain 0.28 mm · humidity 50% · wind 3 m/s · clouds 3%
Wednesday9 September 2026
🌧️18°moderate rain
sunrise 06:01 · sunset 18:43 · night 17° · evening 18° · rain 9.69 mm · humidity 77% · wind 6 m/s · clouds 100%
Thursday10 September 2026
☁️21°overcast clouds
sunrise 06:01 · sunset 18:41 · night 17° · evening 19° · rain 0.15 mm · humidity 55% · wind 4 m/s · clouds 100%
Friday11 September 2026
☁️23°overcast clouds
sunrise 06:02 · sunset 18:40 · night 19° · evening 20° · rain 82.65 mm · humidity 54% · wind 3 m/s · clouds 100%
Saturday12 September 2026
☀️24°clear sky
sunrise 06:03 · sunset 18:38 · night 18° · evening 20° · rain 70.41 mm · humidity 51% · wind 3 m/s · clouds 100%
Sunday13 September 2026
☁️25°overcast clouds
sunrise 06:04 · sunset 18:37 · night 21° · evening 22° · rain 108.69 mm · humidity 51% · wind 3 m/s · clouds 99%
Monday14 September 2026
🌧️22°light rain
sunrise 06:05 · sunset 18:35 · night 19° · evening 19° · rain 0.39 mm · humidity 69% · wind 4 m/s · clouds 95%
Tuesday15 September 2026
🌧️24°light rain
sunrise 06:06 · sunset 18:34 · night 20° · evening 21° · rain 0.36 mm · humidity 53% · wind 3 m/s · clouds 61%
Wednesday16 September 2026
☀️26°clear sky
sunrise 06:06 · sunset 18:32 · night 19° · evening 22° · rain 1.5 mm · humidity 51% · wind 3 m/s · clouds 88%
Thursday17 September 2026
☁️24°broken clouds
sunrise 06:07 · sunset 18:31 · night 20° · evening 22° · rain 10.53 mm · humidity 69% · wind 3 m/s · clouds 59%
Friday18 September 2026
🌧️25°light rain
sunrise 06:08 · sunset 18:29 · night 20° · evening 22° · rain 0.39 mm · humidity 65% · wind 3 m/s · clouds 100%
Saturday19 September 2026
🌧️25°light rain
sunrise 06:09 · sunset 18:27 · night 21° · evening 22° · rain 0.18 mm · humidity 63% · wind 3 m/s · clouds 77%
Sunday20 September 2026
🌧️22°light rain
sunrise 06:10 · sunset 18:26 · night 18° · evening 18° · rain 3.21 mm · humidity 79% · wind 2 m/s · clouds 100%

UV index in Gangneung - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTGangneung03681111+3.6UV MODERATEtoday, daily maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.Unprotected fair skin may burn in about 55 min4Sat5.095Sun6.095Mon7.097Tue8.092Wed9.094Thu10.094Fri11.097Sat12.095Sun13.095Mon14.094Tue15.092Wed16.096Thu17.096Fri18.096Sat19.090Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Gangneung is 4 (moderate) - unprotected fair skin can burn in about 55 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Sea temperature - Gangneung

Water today
25°C
Week avg
24°C
Waves today
1 m
How's the water?
warm
16-day sea temperature forecast:
5.09 25°C6.09 25°C7.09 25°C8.09 24°C9.09 24°C10.09 24°C11.09 24°C12.09 23°C13.09 23°C
Average sea temperature through the year:
Jan 11°CFeb 7°CMar 10°CApr 13°CMay 16°CJun 21°CJul 25°CAug 27°CSep 25°COct 21°CNov 17°CDec 14°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Gangneung weather through the year

Gangneung - annual climate

Warmest, driest months on average: April, May, June, July.

Upcoming public holidays in South Korea: Chuseok — 24 September · Chuseok — 25 September · Chuseok — 26 September.

Nearby and related places

SeoulAnyangIncheonDaeguPohangChangwonSeogwipoBusan

FAQ - Gangneung weather

What is the weather like in Gangneung today?
Today it is about 22° during the day and 20° at night, light rain.
How far ahead can I check the forecast for Gangneung?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.