Weather in Changwon - 14-day forecast

Detailed weather forecast for Changwon, South Korea: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Changwon

today🌧️ 28°💧 0.1 mm

Sun☁️ 27°💧 0.2 mm

Mon🌤️ 27°💧 0.2 mm

Tue☀️ 27°💧 0.2 mm

Wed☁️ 26°💧 0.1 mm

Thu🌤️ 25°💧 8.3 mm

Fri☁️ 25°💧 58.5 mm

Sat☁️ 27°💧 118.1 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

Saturday 5 Sept in Changwon, the forecast high is 28°C. Typical daytime temperatures at this time of year range from 25°C to 28°C, so it will be warmer than usual. It is warmer than 86% of similar days.

Saturday 5 Sept

28°Cwarmer than usual

usually 25°C–28°C

warmer than 86% of similar days

night: warmer than usual rain: typical rainfall wind: stronger than usual

Sunday 6 Sept

27°Cnear normal

usually 24°C–27°C

night: warmer than usual rain: typical rainfall wind: stronger than usual

Monday 7 Sept

27°Cwarmer than usual

usually 24°C–27°C

warmer than 77% of similar days

night: cooler than usual rain: typical rainfall wind: typical

Tuesday 8 Sept

27°Cwarmer than usual

usually 24°C–27°C

warmer than 73% of similar days

night: warmer than usual rain: typical rainfall wind: exceptionally light

Wednesday 9 Sept

26°Cnear normal

usually 24°C–27°C

night: near normal rain: typical rainfall wind: typical

Thursday 10 Sept

25°Cnear normal

usually 24°C–27°C

night: cooler than usual rain: more rain than usual wind: typical

Friday 11 Sept

25°Cnear normal

usually 24°C–27°C

night: near normal rain: exceptionally wet wind: lighter than usual

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 →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 26°C by day. The coolest year was 1993 (23°C) and the warmest was 2024 (30°C). The current forecast averages 26°C - higher than in 78% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Changwon

Changwon - 14-day weather forecast infographic

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

Next 16 days · forecast

27°

around 22° at night · days with rain: 8

Weeks 3-4 · avg for September

27°

around 19° at night · rain chance 38%

Weeks 5-7 · avg for October

22°

around 14° at night · rain chance 27%

The 30 & 45-day outlook for Changwon: the next 16 days are a numerical forecast updated daily - on average 27° by day and 22° at night. Further out we rely on multi-year climate averages: around 27° in September, and about 22° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Changwon

Saturday5 September 2026

🌧️28°light rain

sunrise 06:00 · sunset 18:48 · night 23° · evening 25° · rain 0.13 mm · humidity 54% · wind 8 m/s · clouds 1%

Sunday6 September 2026

☁️27°broken clouds

sunrise 06:01 · sunset 18:46 · night 23° · evening 25° · rain 0.18 mm · humidity 60% · wind 7 m/s · clouds 77%

Monday7 September 2026

🌤️27°scattered clouds

sunrise 06:02 · sunset 18:45 · night 19° · evening 24° · rain 0.15 mm · humidity 52% · wind 6 m/s · clouds 48%

Tuesday8 September 2026

☀️27°clear sky

sunrise 06:02 · sunset 18:44 · night 23° · evening 26° · rain 0.17 mm · humidity 54% · wind 3 m/s · clouds 54%

Wednesday9 September 2026

☁️26°broken clouds

sunrise 06:03 · sunset 18:42 · night 20° · evening 22° · rain 0.12 mm · humidity 66% · wind 6 m/s · clouds 71%

Thursday10 September 2026

🌤️25°scattered clouds

sunrise 06:04 · sunset 18:41 · night 19° · evening 22° · rain 8.34 mm · humidity 43% · wind 6 m/s · clouds 33%

Friday11 September 2026

☁️25°broken clouds

sunrise 06:05 · sunset 18:39 · night 20° · evening 23° · rain 58.5 mm · humidity 53% · wind 4 m/s · clouds 74%

Saturday12 September 2026

☁️27°overcast clouds

sunrise 06:05 · sunset 18:38 · night 21° · evening 24° · rain 118.14 mm · humidity 46% · wind 5 m/s · clouds 100%

Sunday13 September 2026

☁️27°broken clouds

sunrise 06:06 · sunset 18:36 · night 24° · evening 25° · rain 6.72 mm · humidity 50% · wind 2 m/s · clouds 58%

Monday14 September 2026

☁️28°broken clouds

sunrise 06:07 · sunset 18:35 · night 24° · evening 27° · rain 25.32 mm · humidity 49% · wind 1 m/s · clouds 78%

Tuesday15 September 2026

☁️28°overcast clouds

sunrise 06:07 · sunset 18:33 · night 22° · evening 24° · rain 0.36 mm · humidity 57% · wind 3 m/s · clouds 94%

Wednesday16 September 2026

☁️26°overcast clouds

sunrise 06:08 · sunset 18:32 · night 22° · evening 25° · rain 24.21 mm · humidity 65% · wind 2 m/s · clouds 100%

Thursday17 September 2026

🌤️29°scattered clouds

sunrise 06:09 · sunset 18:31 · night 22° · evening 25° · rain 8.16 mm · humidity 49% · wind 3 m/s · clouds 30%

Friday18 September 2026

☁️28°overcast clouds

sunrise 06:10 · sunset 18:29 · night 22° · evening 25° · rain 0.3 mm · humidity 49% · wind 2 m/s · clouds 99%

Saturday19 September 2026

☁️29°broken clouds

sunrise 06:10 · sunset 18:28 · night 23° · evening 25° · rain 0.12 mm · humidity 45% · wind 3 m/s · clouds 74%

Sunday20 September 2026

🌧️19°heavy rain

sunrise 06:11 · sunset 18:26 · night 20° · evening 20° · rain 71.34 mm · humidity 97% · wind 2 m/s · clouds 100%

UV index in Changwon - is it safe to sunbathe?

Today the UV index in Changwon is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

Sea temperature - Changwon

Water today

28°C

Week avg

27°C

Waves today

0.4 m

How's the water?

very warm

16-day sea temperature forecast:

5.09 28°C6.09 27°C7.09 27°C8.09 27°C9.09 27°C10.09 26°C11.09 26°C12.09 26°C13.09 26°C

Average sea temperature through the year:

Jan 9°CFeb 8°CMar 10°CApr 15°CMay 19°CJun 22°CJul 24°CAug 29°CSep 28°COct 23°CNov 18°CDec 13°C

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Changwon weather through the year

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

BusanUlsanDaeguPohangGangneungAnyangIncheon

FAQ - Changwon weather

What is the weather like in Changwon today?

Today it is about 28° during the day and 23° at night, light rain.

How far ahead can I check the forecast for Changwon?

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.