Sumy, Sumy Oblast, Ukraine Climate Change Severity

High

The current climate change severity in Sumy is High, with a 8.7% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.

Data: Jan. to Aug. (Historical Vs 2026) - Weather Data Only

Low

020

Moderate

2040

High

4060

Very High

6080

Extreme

80100

°C

Sumy Climate Change Analysis

Real-time Weather

All Years

Temperature (°C)

Years

Years	Min Temp.	Avg Temp.	Max Temp.
	-13.661290322580646	-11.05483870967742	-8.761290322580644
	-7.321428571428571	-4.846428571428571	-2.717857142857142
	-5.4870967741935495	-2.2322580645161287	0.5548387096774193
	3.623333333333333	8.510000000000002	12.873333333333331
	11.703225806451613	16.754838709677422	21.24516129032258
2010	15.95333333333333	21.753333333333337	26.743333333333343
	19.10322580645161	24.84516129032258	30.051612903225802
	18.770967741935483	24.896774193548385	30.454838709677418
	9.716666666666667	14.166666666666663	18.146666666666665
	1.7612903225806449	4.9870967741935495	8.100000000000003
	3.8500000000000014	6.330000000000002	8.58666666666667
	-6.422580645161289	-3.748387096774195	-1.2999999999999998
	-9.390322580645162	-6.932258064516129	-5.006451612903225
	-13.657142857142857	-10.392857142857142	-7.342857142857141
	-6.148387096774193	-2.254838709677419	1.335483870967742
	2.01	7.596666666666666	12.560000000000002
	9.700000000000001	15.783870967741931	21.229032258064514
2011	14.379999999999999	20.20666666666666	24.69333333333334
	16.835483870967742	22.216129032258067	26.929032258064513
	14.054838709677416	19.248387096774195	24.025806451612908
	9.74666666666667	14.316666666666666	18.506666666666664
	3.43225806451613	6.800000000000002	9.941935483870965
	-2.6266666666666665	-0.40333333333333327	1.63
	-1.8354838709677417	0.0774193548387097	1.8258064516129031
	-7.6322580645161295	-5.561290322580645	-3.8645161290322583
	-13.751724137931037	-10.927586206896555	-8.46551724137931
	-4.9483870967741925	-1.5322580645161286	1.6
	6.763333333333334	11.370000000000001	15.883333333333333
	12.125806451612902	17.919354838709673	23.106451612903225
2012	13.889999999999999	19.423333333333336	24.05333333333333
	16.761290322580642	22.825806451612902	27.706451612903233
	14.970967741935487	20	24.145161290322577
	9.99	14.809999999999999	19.136666666666667
	5.941935483870967	9.438709677419356	12.690322580645164
	0.7399999999999994	2.766666666666667	4.683333333333333
	-8.303225806451616	-6.087096774193548	-3.9677419354838706
	-7.838709677419353	-5.496774193548389	-3.8645161290322587
	-5.007142857142858	-2.5892857142857144	-0.47142857142857136
	-6.70967741935484	-3.190322580645161	-4.297637514678025e-17
	3.3399999999999994	8.71	13.34
	12.767741935483867	18.854838709677416	24.522580645161288
2013	15.01333333333333	20.94333333333334	26.090000000000007
	14.667741935483873	20.15806451612903	25.1
	14.63225806451613	19.909677419354836	24.72903225806452
	7.6833333333333345	11.163333333333332	14.539999999999997
	4.306451612903226	7.206451612903226	10.1
	2.216666666666666	4.4866666666666655	6.696666666666666
	-4.996774193548388	-2.7870967741935484	-0.9096774193548388
	-10.025806451612903	-7.803225806451613	-5.970967741935484
	-5.210714285714287	-2.782142857142858	-0.3749999999999999
	-0.5258064516129033	3.7677419354838704	8.112903225806452
	3.69	8.68	13.056666666666668
	11.90322580645161	17.919354838709676	23.35161290322581
2014	12.016666666666667	17.430000000000003	22.160000000000004
	15.970967741935487	21.941935483870967	27.30322580645161
	15.82258064516129	21.664516129032258	26.73548387096774
	9.383333333333331	14.303333333333333	18.676666666666666
	1.3999999999999997	5.164516129032258	9.248387096774191
	-1.9666666666666666	0.12999999999999975	2.2033333333333336
	-4.900000000000001	-3.12258064516129	-1.5161290322580645
	-5.451612903225806	-3.209677419354839	-1.3516129032258064
	-6.810714285714286	-3.842857142857142	-1.407142857142857
	-1.3741935483870966	2.1161290322580646	5.616129032258065
	2.9733333333333336	7.6000000000000005	11.853333333333332
	9.75806451612903	14.941935483870964	19.309677419354834
2015	13.913333333333336	19.14666666666667	23.446666666666665
	14.751612903225805	20.051612903225802	24.754838709677422
	14.358064516129033	20.212903225806457	25.545161290322582
	11.933333333333334	16.606666666666666	20.956666666666667
	1.648387096774194	5.209677419354838	8.719354838709675
	0.9666666666666666	3.006666666666667	4.930000000000001
	-1.8806451612903228	-0.03548387096774181	1.6193548387096774
	-10.74516129032258	-8.038709677419357	-5.919354838709679
	-2.9137931034482767	-0.21724137931034468	2.206896551724138
	-0.37419354838709695	2.63225806451613	5.474193548387097
	5.803333333333332	10.286666666666665	14.553333333333333
	9.68709677419355	14.541935483870963	18.85483870967742
2016	13.72	18.81666666666667	22.943333333333335
	16.545161290322582	21.845161290322583	26.564516129032253
	15.383870967741938	20.609677419354835	25.261290322580646
	8.95	13.273333333333335	17.03
	2.819354838709676	5.719354838709679	8.40322580645161
	-2.423333333333333	-0.4566666666666663	1.3533333333333328
	-7.193548387096775	-4.416129032258064	-2.3161290322580643
	-9.422580645161291	-6.529032258064517	-4.174193548387097
	-7.249999999999999	-4.778571428571429	-2.7178571428571425
	0.3870967741935486	4.051612903225807	8.070967741935485
	3.2733333333333334	8.253333333333332	12.656666666666668
	8.2	13.61935483870968	18.451612903225808
2017	12.613333333333333	18.05333333333333	22.496666666666666
	14.732258064516133	19.680645161290325	23.638709677419357
	16.919354838709673	21.906451612903226	26.32903225806452
	11.160000000000002	15.73666666666667	19.990000000000002
	4.535483870967741	7.3709677419354875	10.064516129032256
	0.04333333333333329	1.9100000000000008	3.57
	-0.04193548387096778	1.735483870967742	3.535483870967742
	-5.435483870967741	-3.7032258064516124	-2.2064516129032254
	-8.249999999999998	-5.796428571428572	-3.8285714285714287
	-8.3258064516129	-4.974193548387097	-2.1741935483870978
	4.63	9.97	14.736666666666661
	11.929032258064513	17.480645161290322	22.412903225806446
2018	13.686666666666667	19.12	23.573333333333323
	16.512903225806454	21.064516129032263	24.929032258064527
	15.848387096774196	21.348387096774196	26.351612903225803
	12.806666666666667	17.12333333333334	21.44333333333333
	6.580645161290322	10.06774193548387	13.587096774193546
	-2.5933333333333337	-0.4066666666666664	2.103333333333333
	-6.258064516129033	-4.1322580645161295	-2.358064516129032
	-8.841935483870968	-5.83225806451613	-3.3645161290322583
	-4.439285714285715	-2.125	-0.3499999999999999
	-1.106451612903226	2.3935483870967738	5.674193548387096
	4.703333333333333	9.743333333333336	14.113333333333333
	11.799999999999999	16.487096774193546	20.619354838709675
2019	16.76	21.876666666666676	26.236666666666665
	13.835483870967742	18.877419354838707	22.780645161290323
	14.683870967741933	19.741935483870968	24.229032258064514
	10.48	14.959999999999999	19.136666666666667
	6.751612903225805	10.238709677419356	14.04193548387097
	1.3599999999999997	3.6733333333333325	6.063333333333334
	-0.20967741935483875	1.5419354838709676	2.964516129032258
	-2.0064516129032257	-0.5677419354838712	0.8096774193548387
	-2.393103448275862	-0.05172413793103462	2.4275862068965526
	1.867741935483871	5.658064516129032	9.751612903225809
	2.863333333333334	7.549999999999999	12.283333333333335
	8.129032258064516	12.022580645161291	15.79032258064516
2020	15.803333333333335	20.493333333333336	25.016666666666662
	15.20645161290323	20.280645161290323	24.87096774193548
	14.45806451612903	19.535483870967738	24.525806451612905
	12.736666666666663	17.533333333333335	22.88
	9.235483870967743	12.16129032258065	15.68387096774193
	0.7366666666666662	2.7066666666666666	4.576666666666667
	-4.19032258064516	-2.158064516129033	-0.5225806451612904
	-6.02258064516129	-3.5516129032258057	-1.7387096774193551
	-11.678571428571429	-7.892857142857145	-4.55357142857143
	-2.8967741935483855	0.3516129032258067	3.9516129032258065
	3.2933333333333334	7.493333333333334	11.81
	8.993548387096777	13.86451612903226	18.241935483870968
2021	15.17666666666667	19.553333333333335	24.006666666666668
	17.99032258064516	23.319354838709682	28.161290322580644
	17.15483870967742	22.6258064516129	27.99677419354839
	8.163333333333334	12.326666666666666	16.89666666666667
	3.7129032258064516	7.741935483870969	12.467741935483868
	1.0333333333333334	3.7666666666666666	6.793333333333333
	-4.683870967741935	-2.148387096774194	0.022580645161290006
	-7.20967741935484	-4.235483870967744	-1.696774193548387
	-3.8821428571428562	-1.0000000000000002	1.8250000000000004
	-4.338709677419354	-0.3387096774193548	4.009677419354838
	4.583333333333333	8.55	12.570000000000002
	6.993548387096775	12.10967741935484	16.964516129032255
2022	14.296666666666663	19.68333333333333	24.660000000000007
	14.441935483870969	19.529032258064518	24.574193548387097
	18.348387096774193	22.93225806451613	28.161290322580644
	8.860000000000001	12.15666666666667	15.843333333333334
	6.080645161290323	9.106451612903227	12.541935483870967
	0.31000000000000016	2.416666666666667	4.713333333333333
	-2.5935483870967744	-0.49032258064516115	1.5419354838709678
	-4.390322580645161	-1.9677419354838706	0.8870967741935484
	-5.742857142857143	-3.05	-0.4607142857142858
	0.9741935483870966	4.248387096774193	8.087096774193547
	6.223333333333333	9.663333333333338	13.329999999999997
	8.345161290322581	13.796774193548387	18.935483870967747
2023	12.789999999999997	17.769999999999996	22.299999999999997
	15.464516129032257	20.374193548387098	25.496774193548386
	16.809677419354838	21.970967741935485	27.51290322580645
	11.780000000000003	17.30333333333333	23.6
	6.035483870967742	9.948387096774193	13.996774193548386
	1.5366666666666664	3.7066666666666657	5.8199999999999985
	-3.1258064516129025	-1.0677419354838706	0.9612903225806453
	-8.948387096774193	-5.3096774193548395	-2.55483870967742
	-1.5241379310344827	0.6241379310344827	2.720689655172414
	1.1483870967741934	4.203225806451614	7.974193548387096
	8.276666666666667	12.856666666666666	17.529999999999998
	7.754838709677419	13.732258064516127	18.838709677419352
2024	14.999999999999995	20.033333333333328	24.753333333333337
	17.88064516129032	24.229032258064525	30.406451612903222
	16.245161290322578	22.529032258064518	28.719354838709684
	14.423333333333334	20.08333333333333	26.43
	7.39032258064516	10.948387096774193	15.332258064516127
	0.24666666666666656	2.7299999999999995	5.133333333333334
	-1.3774193548387097	0.07096774193548387	1.716129032258065
	-0.22258064516129022	1.4870967741935484	3.6064516129032254
	-8.975	-6.010714285714286	-2.5000000000000004
	2.0903225806451617	5.861290322580645	10.367741935483872
	5.599999999999998	10.37	15.153333333333336
	8.461290322580643	13.248387096774191	17.83225806451613
2025	11.716666666666667	16.276666666666664	20.799999999999997
	16.212903225806446	21.645161290322584	27.41935483870968
	13.232258064516127	19.31935483870968	25.95161290322581
	10.583333333333337	16.03333333333333	22.226666666666667
	5.946666666666667	8.7	11.723333333333333
	4.1866666666666665	6.736666666666667	9.506666666666664
	-2.232258064516129	-0.6806451612903227	1.116129032258065
	-9.761290322580646	-6.935483870967744	-4.406451612903226
	-11.674999999999999	-7.639285714285713	-3.9857142857142853
	0.7516129032258064	3.532258064516129	6.990322580645161
	2.9966666666666653	6.333333333333332	9.953333333333335
2026	9.687096774193547	14.180645161290322	18.919354838709673
	12.753333333333334	17.6	22.45
	13.238709677419353	17.977419354838712	22.64193548387096
	14.674193548387093	21.241935483870964	27.806451612903217

Max Temp.

Avg Temp.

Min Temp.

Sumy Weather Condition Changes (Historic Vs 2026)

2026

Historic

2026

Over the past 16 year(s), Sumy temperature has changed by around -15.7%, and has experienced notable climate changes.

Sunny

Cloudy

Rainy

Snowy

Misty

Data: Jan. to Aug. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Sunny

3556

60%

Cloudy

5326

-50.9%

Rainy

10083

-17%

Snowy

828

250%

Misty

100%

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

Climate Change Indicators:

Over the past 16 years, Sumy has experienced measurable shifts in key climate parameters, contributing to the current severity score of 52 (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

52/100

High

Low

020

Moderate

2040

High

4060

Very High

6080

Extreme

80100

From 2010 to 2026, Sumy experienced significant changes:

Temperature change of

-1.55 °C

Variation in annual rainfall

+10.79 %

Change in average humidity

+0.77 %

PM2.5 levels surged by

+83.69 %

Heatwave changed by

-6 Days

Coldwave changed by

-5 Days

Wind speeds changed by

+0.69 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 Aug.

Sumy Weather Forecast 30 Days (September - October 2026)
Sumy, Sumy Oblast, Ukraine

Condition

Temperature

Humi.

Wind Speed

Mon. 28, Sep.

Sunny

17°/11°

77%

22km/h

Tue. 29, Sep.

Sunny

17°/9°

71%

19.8km/h

Wed. 30, Sep.

Sunny

16°/9°

61%

17.6km/h

Thu. 1, Oct.

Sunny

16°/8°

65%

23.4km/h

Fri. 2, Oct.

Sunny

16°/7°

59%

21.6km/h

Sat. 3, Oct.

Sunny

16°/7°

47%

15.1km/h

Sun. 4, Oct.

Sunny

17°/8°

54%

14.8km/h

Mon. 5, Oct.

Sunny

17°/9°

65%

18km/h

Tue. 6, Oct.

Rain

14°/7°

69%

18.7km/h

Wed. 7, Oct.

Heavy Rain

14°/6°

66%

19km/h

Thu. 8, Oct.

Rain Showers

14°/6°

69%

19.4km/h

Fri. 9, Oct.

Rain Showers

13°/6°

73%

19.1km/h

Sat. 10, Oct.

Rain Showers

13°/6°

73%

17.1km/h

Sun. 11, Oct.

Heavy Rain

13°/6°

73%

15.9km/h

Mon. 12, Oct.

Rain Showers

13°/6°

73%

17.7km/h

Tue. 13, Oct.

Rain Showers

13°/6°

73%

17.5km/h

Wed. 14, Oct.

Rain

12°/5°

73%

15.9km/h

Thu. 15, Oct.

Rain

12°/5°

75%

16.2km/h

Fri. 16, Oct.

Rain Showers

12°/5°

77%

14.3km/h

Sat. 17, Oct.

Heavy Rain

12°/5°

75%

14.4km/h

Sun. 18, Oct.

Rain Showers

11°/4°

73%

15.6km/h

Mon. 19, Oct.

Rain

11°/4°

75%

15.2km/h

Tue. 20, Oct.

Rain Showers

11°/4°

78%

17.3km/h

Wed. 21, Oct.

Rain Showers

11°/5°

78%

16.7km/h

Thu. 22, Oct.

Rain

10°/4°

76%

15.5km/h

Fri. 23, Oct.

Rain

10°/4°

74%

17.1km/h

Sat. 24, Oct.

Rain

9°/4°

76%

18.5km/h

Sun. 25, Oct.

Rain Showers

8°/3°

78%

16.6km/h

Mon. 26, Oct.

Rain Showers

8°/3°

77%

16.8km/h

Tue. 27, Oct.

Rain Showers

9°/3°

77%

17.8km/h

Wed. 28, Oct.

Rain Showers

9°/4°

81%

17.6km/h

Highest & Lowest Weather Forecasts

Temperature

High will be onMon. 28, Sep.

17°C

Low will be onSun. 25, Oct.

3°C

Humidity

High will be onWed. 28, Oct.

81%

Low will be onSat. 3, Oct.

47%

Wind Speed

High will be onThu. 1, Oct.

23.4km/h

Low will be onFri. 16, Oct.

14.3km/h

Precipitation

High will be onTue. 27, Oct.

3.8mm

Low will be onMon. 19, Oct.

0.5mm

High will be onSat. 3, Oct.

Low will be onMon. 28, Sep.

1.7

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Sumy Weather Condition Changes (Historic Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Sumy experienced significant changes:

Sumy Weather Forecast 30 Days (September - October 2026)
Sumy, Sumy Oblast, Ukraine

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Comparison of Weather Condition (Historic Vs 2026)

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Severity Score

From 2010 to 2026, Sumy experienced significant changes:

Sumy Weather Forecast 30 Days (September - October 2026)Sumy, Sumy Oblast, Ukraine

Highest & Lowest Weather Forecasts

Our Blogs

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