Sumy, Sumy Oblast, Ukraine Climate Change Severity

57
High
The current climate change severity in Sumy is High, with a 21.2% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Sumy 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), Sumy temperature has changed by around +9.9%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
2616
-38.4%
cloudyCloudy
4440
-9.09%
rainyRainy
9166
-27.4%
snowySnowy
83
-62.5%
mistyMisty
01
100%

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

Climate Change Indicators:

Over the past 15 years, Sumy has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Sumy experienced significant changes:

Temperature change of

+0.8 °C

Variation in annual rainfall

-10.4 %

Change in average humidity

-6.5 %

PM2.5 levels surged by

+100 %

Heatwave changed by

+20.4 day(s)

Coldwave changed by

+1.7 day(s)

Wind speeds changed by

+2.3 km/h

These indicators show that Sumy is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

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

Sumy Weather Forecast 30 Days (August - September 2025)
Sumy, Sumy Oblast, Ukraine

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 8, Aug.
sunnySunny
Temperature Icon24°/12°
Humidity Icon54%
Wind Icon10km/h
Sat. 9, Aug.
partly cloudyPartly Cloudy
Temperature Icon26°/15°
Humidity Icon57%
Wind Icon17km/h
Sun. 10, Aug.
partly cloudyPartly Cloudy
Temperature Icon26°/13°
Humidity Icon59%
Wind Icon16km/h
Mon. 11, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon24°/14°
Humidity Icon60%
Wind Icon29km/h
Tue. 12, Aug.
sunnySunny
Temperature Icon24°/11°
Humidity Icon56%
Wind Icon23km/h
Wed. 13, Aug.
sunnySunny
Temperature Icon26°/13°
Humidity Icon56%
Wind Icon18km/h
Thu. 14, Aug.
sunnySunny
Temperature Icon26°/15°
Humidity Icon52%
Wind Icon17km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon26°/12°
Humidity Icon56%
Wind Icon23km/h
Sat. 16, Aug.
sunnySunny
Temperature Icon27°/13°
Humidity Icon58%
Wind Icon12km/h
Sun. 17, Aug.
sunnySunny
Temperature Icon28°/18°
Humidity Icon45%
Wind Icon10km/h
Mon. 18, Aug.
sunnySunny
Temperature Icon32°/17°
Humidity Icon35%
Wind Icon14km/h
Tue. 19, Aug.
sunnySunny
Temperature Icon34°/18°
Humidity Icon27%
Wind Icon15km/h
Wed. 20, Aug.
sunnySunny
Temperature Icon34°/19°
Humidity Icon28%
Wind Icon13km/h
Thu. 21, Aug.
sunnySunny
Temperature Icon27°/13°
Humidity Icon67%
Wind Icon22km/h
Fri. 22, Aug.
moderate rain at timesModerate rain at times
Temperature Icon24°/14°
Humidity Icon63%
Wind Icon17km/h
Sat. 23, Aug.
moderate rain at timesModerate rain at times
Temperature Icon25°/14°
Humidity Icon62%
Wind Icon14km/h
Sun. 24, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon25°/14°
Humidity Icon57%
Wind Icon16km/h
Mon. 25, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/14°
Humidity Icon60%
Wind Icon16km/h
Tue. 26, Aug.
moderate rain at timesModerate rain at times
Temperature Icon24°/14°
Humidity Icon58%
Wind Icon14km/h
Wed. 27, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/14°
Humidity Icon65%
Wind Icon14km/h
Thu. 28, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/15°
Humidity Icon69%
Wind Icon16km/h
Fri. 29, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/14°
Humidity Icon66%
Wind Icon15km/h
Sat. 30, Aug.
moderate rain at timesModerate rain at times
Temperature Icon25°/14°
Humidity Icon58%
Wind Icon14km/h
Sun. 31, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/14°
Humidity Icon61%
Wind Icon14km/h
Mon. 1, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon23°/14°
Humidity Icon63%
Wind Icon15km/h
Tue. 2, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/13°
Humidity Icon63%
Wind Icon14km/h
Wed. 3, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon23°/13°
Humidity Icon63%
Wind Icon16km/h
Thu. 4, Sep.
moderate rain at timesModerate rain at times
Temperature Icon22°/13°
Humidity Icon66%
Wind Icon16km/h
Fri. 5, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/12°
Humidity Icon65%
Wind Icon16km/h
Sat. 6, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/11°
Humidity Icon65%
Wind Icon14km/h
Sun. 7, Sep.
moderate rain at timesModerate rain at times
Temperature Icon20°/11°
Humidity Icon63%
Wind Icon15km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 20, Aug.

34.3°C

Low will be onSun. 7, Sep.

10.9°C

HumidityHumidity

High will be onThu. 28, Aug.

69%

Low will be onTue. 19, Aug.

27%

Wind SpeedWind Speed

High will be onMon. 11, Aug.

29.2km/h

Low will be onFri. 8, Aug.

10.1km/h

PrecipitationPrecipitation

High will be onThu. 28, Aug.

3.7mm

Low will be onSat. 9, Aug.

0.03mm

Ultraviolet IndexUV

High will be onTue. 19, Aug.

7

Low will be onSat. 9, Aug.

1.2

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