Busan, Busan, South Korea Climate Change Severity

33
Moderate
The current climate change severity in Busan is Moderate, with a 24.6% improvement in the climate score compared to last 15 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Busan Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Busan temperature has changed by around -1.9%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Aug. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
6368
7.9%
cloudyCloudy
6750
-25.3%
rainyRainy
8456
-33.3%
snowySnowy
00
0%
mistyMisty
02
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 15 years, Busan has experienced measurable improvements in key climate parameters, contributing to the current severity score of 33 (within the Moderate severity category). This suggests improving climate conditions compared to previous years. Here’s a breakdown of the specific changes observed:

Severity Score

33/100

Moderate

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Busan experienced significant changes:

Temperature change of

-0.2 °C

Variation in annual rainfall

-7.7 %

Change in average humidity

-3.7 %

PM2.5 levels surged by

-13.7 %

Heatwave changed by

+6.4 day(s)

Coldwave changed by

+1.1 day(s)

Wind speeds changed by

+0.3 km/h

These indicators show reduced climate volatility, offering a valuable window to reinforce sustainable practices and strengthen long-term climate resilience. As the severity shifts toward Moderate, it is important to maintain momentum in climate adaptation efforts.

Check how we calculate Climate Change Severity
Based on data from Jan. to Aug.

Busan Weather Forecast 30 Days (September - October 2025)
Busan, Busan, South Korea

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 2, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon30°/25°
Humidity Icon83%
Wind Icon16km/h
Wed. 3, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/24°
Humidity Icon83%
Wind Icon21km/h
Thu. 4, Sep.
sunnySunny
Temperature Icon29°/24°
Humidity Icon79%
Wind Icon30km/h
Fri. 5, Sep.
sunnySunny
Temperature Icon29°/23°
Humidity Icon73%
Wind Icon18km/h
Sat. 6, Sep.
sunnySunny
Temperature Icon29°/23°
Humidity Icon70%
Wind Icon15km/h
Sun. 7, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/25°
Humidity Icon84%
Wind Icon21km/h
Mon. 8, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/24°
Humidity Icon81%
Wind Icon12km/h
Tue. 9, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon24°/22°
Humidity Icon89%
Wind Icon20km/h
Wed. 10, Sep.
heavy rainHeavy rain
Temperature Icon22°/22°
Humidity Icon94%
Wind Icon19km/h
Thu. 11, Sep.
partly cloudyPartly Cloudy
Temperature Icon26°/22°
Humidity Icon85%
Wind Icon23km/h
Fri. 12, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon26°/23°
Humidity Icon87%
Wind Icon20km/h
Sat. 13, Sep.
partly cloudyPartly Cloudy
Temperature Icon28°/23°
Humidity Icon84%
Wind Icon11km/h
Sun. 14, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/25°
Humidity Icon86%
Wind Icon25km/h
Mon. 15, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/25°
Humidity Icon86%
Wind Icon19km/h
Tue. 16, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/21°
Humidity Icon79%
Wind Icon22km/h
Wed. 17, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/21°
Humidity Icon80%
Wind Icon26km/h
Thu. 18, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/21°
Humidity Icon75%
Wind Icon22km/h
Fri. 19, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/21°
Humidity Icon74%
Wind Icon25km/h
Sat. 20, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon24°/20°
Humidity Icon72%
Wind Icon23km/h
Sun. 21, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/20°
Humidity Icon74%
Wind Icon24km/h
Mon. 22, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/19°
Humidity Icon75%
Wind Icon24km/h
Tue. 23, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/19°
Humidity Icon72%
Wind Icon23km/h
Wed. 24, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/19°
Humidity Icon71%
Wind Icon21km/h
Thu. 25, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon24°/19°
Humidity Icon73%
Wind Icon22km/h
Fri. 26, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon24°/19°
Humidity Icon74%
Wind Icon21km/h
Sat. 27, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/20°
Humidity Icon76%
Wind Icon21km/h
Sun. 28, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/20°
Humidity Icon75%
Wind Icon21km/h
Mon. 29, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/19°
Humidity Icon75%
Wind Icon19km/h
Tue. 30, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/18°
Humidity Icon73%
Wind Icon20km/h
Wed. 1, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/18°
Humidity Icon72%
Wind Icon21km/h
Thu. 2, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/18°
Humidity Icon70%
Wind Icon22km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onTue. 2, Sep.

29.7°C

Low will be onWed. 1, Oct.

18.2°C

HumidityHumidity

High will be onWed. 10, Sep.

94%

Low will be onSat. 6, Sep.

70%

Wind SpeedWind Speed

High will be onThu. 4, Sep.

29.9km/h

Low will be onSat. 13, Sep.

11.2km/h

PrecipitationPrecipitation

High will be onWed. 10, Sep.

33.1mm

Low will be onThu. 4, Sep.

0.01mm

Ultraviolet IndexUV

High will be onSat. 13, Sep.

7

Low will be onThu. 4, Sep.

1.8

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