Oshawa, Ontario, Canada Climate Change Severity

High

The current climate change severity in Oshawa is High, with a 7.2% 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 Sep. (Historical Vs 2026) - Weather Data Only

Low

020

Moderate

2040

High

4060

Very High

6080

Extreme

80100

°C

Oshawa Climate Change Analysis

Real-time Weather

All Years

Temperature (°C)

Years

Years	Min Temp.	Avg Temp.	Max Temp.
	-8.206451612903225	-5.348387096774194	-3.012903225806451
	-6.692857142857144	-4.146428571428571	-1.5035714285714288
	-0.10322580645161299	2.838709677419355	6.2225806451612895
	4.743333333333333	8.633333333333333	12.67
	9.458064516129031	13.780645161290325	17.735483870967744
2010	14.163333333333329	17.60333333333334	21.000000000000004
	18.24193548387097	22.132258064516126	25.670967741935485
	17.896774193548385	21.287096774193554	24.35806451612903
	13.106666666666667	16.346666666666664	19.35333333333333
	7.293548387096774	10.219354838709679	13.248387096774193
	1.6466666666666672	4.420000000000001	7.3166666666666655
	-6.603225806451612	-4.312903225806451	-1.9741935483870967
	-10.251612903225805	-7.2064516129032254	-4.2612903225806456
	-9.87142857142857	-6.182142857142858	-3.246428571428571
	-4.867741935483871	-1.7451612903225804	1.2354838709677418
	1.5399999999999998	5.096666666666666	8.700000000000001
	7.861290322580646	11.22258064516129	14.509677419354837
2011	13.223333333333334	16.856666666666666	20.083333333333325
	18.096774193548388	22.125806451612902	25.735483870967744
	17.425806451612896	20.925806451612896	24.19032258064515
	14.253333333333334	17.256666666666668	20.253333333333337
	8.277419354838708	10.829032258064517	13.383870967741936
	4.220000000000001	6.693333333333333	8.963333333333333
	-1.8064516129032258	0.7516129032258067	2.9161290322580644
	-5.680645161290323	-2.42258064516129	0.03548387096774192
	-4.1448275862068975	-1.3620689655172415	1.3275862068965518
	1.109677419354839	4.683870967741935	8.264516129032257
	1.9266666666666663	5.790000000000001	9.476666666666663
	10.280645161290321	14.345161290322583	18.141935483870963
2012	15.200000000000005	18.94333333333333	22.46333333333333
	18.77741935483871	22.887096774193544	26.551612903225806
	17.18064516129032	20.89677419354839	24.200000000000003
	13.036666666666665	16.543333333333333	19.956666666666663
	7.6	10.519354838709676	13.145161290322578
	1.0733333333333333	3.373333333333334	5.5633333333333335
	-1.6516129032258065	0.5870967741935486	2.612903225806451
	-5.877419354838708	-3.0258064516129033	0.012903225806451596
	-8.414285714285715	-5.439285714285714	-2.764285714285714
	-4.51290322580645	-1.6064516129032258	1.074193548387097
	0.4766666666666666	4.3100000000000005	7.730000000000001
	8.161290322580646	12.329032258064517	16.30322580645161
2013	13.15	16.526666666666667	19.87333333333334
	17.296774193548384	20.90645161290322	24.274193548387096
	16.387096774193548	20.00967741935484	23.477419354838712
	12.733333333333336	16.006666666666668	19.346666666666668
	8.761290322580644	11.516129032258068	14.299999999999999
	-0.4266666666666664	2.6700000000000004	5.39
	-6.800000000000001	-3.870967741935484	-1.3903225806451613
	-12.003225806451614	-8.341935483870968	-5.277419354838709
	-11.407142857142857	-8.092857142857142	-5.367857142857145
	-8.59677419354839	-4.764516129032258	-1.5354838709677423
	0.4866666666666666	4.390000000000001	8.066666666666666
	7.480645161290321	11.45806451612903	15.070967741935487
2014	13.083333333333334	17.11	20.666666666666664
	15.167741935483873	18.880645161290317	22.200000000000003
	15.37741935483871	19.012903225806458	22.606451612903225
	12.616666666666665	16.296666666666663	19.893333333333334
	7.999999999999999	10.919354838709678	13.716129032258062
	-0.5099999999999998	2.220000000000001	4.643333333333332
	-2.464516129032259	-0.4903225806451614	1.3387096774193548
	-11.938709677419356	-7.729032258064517	-3.838709677419356
	-16.742857142857144	-12.617857142857142	-8.89642857142857
	-6.5064516129032235	-2.996774193548387	-0.035483870967742095
	1.62	5.6066666666666665	9.76
	8.945161290322579	13.522580645161288	17.970967741935485
2015	11.996666666666668	16.00333333333333	19.830000000000002
	15.70967741935484	20.535483870967745	25.029032258064515
	16.316129032258065	20.193548387096772	24.290322580645157
	15.306666666666668	18.796666666666674	22.680000000000003
	6.883870967741934	9.970967741935484	13.348387096774195
	3.8066666666666666	6.77	9.58666666666667
	1.4258064516129025	4.12258064516129	6.416129032258064
	-7.05483870967742	-3.55483870967742	-0.9354838709677414
	-7.175862068965518	-3.1206896551724137	0.13103448275862056
	-1.8516129032258064	1.3419354838709676	4.367741935483871
	-0.07999999999999989	3.853333333333334	7.533333333333333
	8.403225806451612	12.67741935483871	16.85806451612903
2016	13.166666666666666	18.160000000000004	22.673333333333336
	17.525806451612905	21.8	25.93225806451612
	18.374193548387098	22.877419354838707	27.467741935483872
	15.126666666666667	18.933333333333334	23.283333333333335
	8.377419354838711	11.525806451612903	14.780645161290321
	3.2700000000000005	6.283333333333334	9.443333333333332
	-4.7870967741935475	-1.7645161290322577	0.7612903225806451
	-4.903225806451613	-2.1096774193548384	0.3838709677419353
	-4.925000000000002	-1.164285714285715	2.400000000000001
	-4.780645161290324	-1.3516129032258064	2.0225806451612898
	3.963333333333334	7.786666666666666	11.473333333333333
	7.180645161290324	10.980645161290324	14.3
2017	13.380000000000003	17.313333333333333	20.93
	16.409677419354843	20.23870967741935	23.980645161290326
	15.925806451612903	19.741935483870968	23.44838709677419
	14.35	18.30666666666666	22.576666666666664
	10.06774193548387	13.587096774193547	16.864516129032257
	0.5	3.9600000000000004	6.926666666666667
	-7.735483870967744	-4.658064516129032	-2.0999999999999996
	-9.80967741935484	-5.883870967741936	-2.651612903225806
	-6.078571428571425	-2.325	0.864285714285714
	-2.9354838709677424	-0.23548387096774223	2.832258064516129
	-0.86	2.7966666666666664	6.42
	9.799999999999999	14.361290322580645	18.677419354838705
2018	14.103333333333332	18.03666666666667	21.78666666666667
	18.4	22.703225806451616	26.79032258064516
	19.383870967741935	22.93870967741936	26.477419354838705
	15.683333333333334	19.29666666666667	22.63666666666667
	6.161290322580645	9.777419354838706	12.816129032258068
	-0.7100000000000003	1.9433333333333336	4.16
	-2.570967741935484	0.06129032258064513	2.419354838709678
	-10.348387096774195	-6.487096774193548	-2.6516129032258067
	-8.082142857142859	-4.275	-0.3857142857142857
	-4.841935483870967	-1.177419354838709	2.3129032258064517
	1.99	5.930000000000001	9.71
	6.948387096774193	10.86774193548387	14.635483870967738
2019	12.26	16.32	20.046666666666667
	17.88709677419355	22.00322580645161	25.87096774193549
	16.48064516129032	20.258064516129032	23.93225806451613
	13.353333333333333	17.119999999999997	20.499999999999996
	7.670967741935484	11.041935483870965	13.974193548387099
	-2.0400000000000005	0.9033333333333337	3.5000000000000004
	-3.9709677419354845	-1.248387096774194	1.1483870967741936
	-5.551612903225807	-2.2741935483870965	0.4741935483870967
	-7.0793103448275865	-3.486206896551724	-0.47586206896551714
	-1.1903225806451614	2.129032258064516	4.951612903225806
	1.4933333333333332	4.870000000000001	7.969999999999999
	7.0612903225806445	10.62258064516129	14.038709677419355
2020	14.150000000000002	18.240000000000002	22.10333333333333
	19.519354838709678	23.277419354838706	26.735483870967737
	17.638709677419353	21.103225806451608	24.529032258064515
	13.376666666666667	16.516666666666666	19.62
	6.641935483870968	9.674193548387096	12.33225806451613
	3.5733333333333337	6.306666666666666	8.826666666666664
	-2.5258064516129033	-0.25483870967741934	1.7451612903225808
	-5.648387096774194	-3.209677419354838	-1.0096774193548388
	-8.789285714285713	-5.503571428571428	-2.303571428571428
	-2.787096774193549	1.5806451612903225	5.683870967741934
	3.1433333333333326	6.373333333333334	9.756666666666668
	7.709677419354837	11.77741935483871	15.570967741935485
2021	15.446666666666667	18.783333333333335	22.163333333333338
	17.048387096774192	20.151612903225807	23.33548387096774
	19.36451612903226	22.661290322580648	26.145161290322584
	14.480000000000002	18.09333333333333	21.916666666666664
	11.616129032258067	13.780645161290321	16.438709677419357
	1.95	4.8599999999999985	8.03
	-1.4516129032258067	1.4580645161290324	4.112903225806452
	-12.493548387096773	-7.709677419354838	-3.5064516129032257
	-9.578571428571431	-4.985714285714286	-1.1035714285714284
	-2.767741935483871	0.40967741935483876	4.0354838709677425
	2.193333333333334	5.630000000000001	9.473333333333333
	8.919354838709678	13.103225806451613	17.087096774193547
2022	12.89666666666667	17.273333333333333	21.259999999999994
	16.890322580645158	20.73870967741936	24.632258064516126
	17.90967741935484	21.490322580645163	25.45161290322581
	14.110000000000001	17.32333333333333	20.970000000000002
	7.070967741935482	10.525806451612903	14.109677419354837
	2.7666666666666675	5.383333333333331	7.9899999999999975
	-2.4451612903225812	0.11935483870967742	2.406451612903226
	-3.741935483870969	-1.167741935483871	1.1516129032258065
	-5.960714285714286	-2.107142857142857	1.9428571428571426
	-3.048387096774194	0.23870967741935484	3.674193548387096
	3.486666666666667	7.326666666666666	11.236666666666666
	7.929032258064515	12.16451612903226	16.351612903225806
2023	14.43	18.07333333333333	21.866666666666664
	17.25483870967742	21.377419354838707	25.5258064516129
	15.796774193548384	19.64193548387097	23.53225806451612
	13.983333333333336	17.926666666666666	22.39666666666666
	8.951612903225804	12.025806451612905	15.312903225806453
	0.9033333333333334	3.9633333333333343	6.876666666666666
	0.6225806451612902	2.5741935483870972	4.358064516129032
	-4.129032258064517	-2.0903225806451613	0.019354838709677236
	-2.993103448275862	-0.017241379310344675	2.5551724137931036
	0.01935483870967752	2.793548387096774	5.625806451612904
	3.796666666666666	6.659999999999998	9.706666666666667
	10.403225806451612	13.454838709677421	16.73225806451613
2024	14.293333333333335	17.619999999999997	20.96
	17.448387096774194	20.758064516129032	24.174193548387095
	16.990322580645163	20.435483870967747	24.006451612903223
	14.953333333333335	18.07	21.57333333333333
	7.587096774193549	11.248387096774195	15.006451612903223
	3.980000000000001	6.2766666666666655	8.65333333333333
	-2.632258064516129	-0.6806451612903229	1.3258064516129033
	-7.870967741935483	-5.15483870967742	-2.832258064516129
	-8.467857142857143	-5.303571428571429	-2.517857142857142
	-2.9548387096774187	0.6354838709677421	4.212903225806452
	1.93	5.6033333333333335	9.666666666666668
	7.525806451612904	10.925806451612903	14.719354838709679
2025	13.983333333333333	17.669999999999998	21.886666666666663
	17.270967741935483	21.290322580645164	25.458064516129028
	15.919354838709678	20.638709677419353	25.345161290322586
	13.389999999999997	17.156666666666663	21.43666666666667
	7.876666666666666	11.303333333333335	15.103333333333332
	1.2533333333333334	3.4733333333333336	5.92
	-5.538709677419355	-2.774193548387097	-0.42903225806451617
	-9.632258064516128	-6.49032258064516	-3.8
	-8.617857142857144	-5.321428571428571	-2.2214285714285715
	-2.2516129032258068	0.41612903225806447	3.5161290322580645
	2.806666666666666	7.44	12.783333333333333
	6.864516129032259	12.229032258064517	18.606451612903232
2026	13.85333333333334	19.67333333333333	26.45333333333333
	17.312903225806455	22.86129032258064	29.590322580645164
	16.093548387096774	20.48709677419355	25.741935483870964
	12.700000000000001	17.03	22.17

Max Temp.

Avg Temp.

Min Temp.

Oshawa Weather Condition Changes (Historic Vs 2026)

2026

Historic

2026

Over the past 16 year(s), Oshawa temperature has changed by around +2.1%, and has experienced notable climate changes.

Sunny

Cloudy

Rainy

Snowy

Misty

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

Comparison of Weather Condition (Historic Vs 2026)

Sunny

42110

161.9%

Cloudy

6715

-77.6%

Rainy

10756

-47.6%

Snowy

914

55.5%

Misty

300%

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

Climate Change Indicators:

Over the past 16 years, Oshawa 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, Oshawa experienced significant changes:

Temperature change of

+0.21 °C

Variation in annual rainfall

+209.53 %

Change in average humidity

-3.51 %

PM2.5 levels surged by

+14.05 %

Heatwave changed by

+1 Day

Coldwave changed by

-8 Days

Wind speeds changed by

+2.82 km/h

These indicators show that Oshawa 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 Sep.

Oshawa Weather Forecast 30 Days (October - November 2026)
Oshawa, Ontario, Canada

Condition

Temperature

Humi.

Wind Speed

Fri. 2, Oct.

Overcast

19°/11°

75%

29.2km/h

Sat. 3, Oct.

Sunny

16°/7°

66%

17.6km/h

Sun. 4, Oct.

Overcast

17°/8°

72%

15.8km/h

Mon. 5, Oct.

Sunny

13°/3°

60%

35.3km/h

Tue. 6, Oct.

Sunny

13°/1°

51%

17.3km/h

Wed. 7, Oct.

Overcast

16°/6°

59%

27.4km/h

Thu. 8, Oct.

Sunny

14°/8°

62%

28.8km/h

Fri. 9, Oct.

Sunny

16°/7°

68%

15.1km/h

Sat. 10, Oct.

Rain

16°/9°

73%

19.1km/h

Sun. 11, Oct.

Heavy Rain

16°/9°

73%

22.5km/h

Mon. 12, Oct.

Heavy Rain

15°/9°

75%

22.9km/h

Tue. 13, Oct.

Rain Showers

15°/9°

78%

21.9km/h

Wed. 14, Oct.

Rain Showers

15°/9°

76%

21.7km/h

Thu. 15, Oct.

Rain Showers

14°/8°

75%

27.5km/h

Fri. 16, Oct.

Rain Showers

13°/7°

75%

23.5km/h

Sat. 17, Oct.

Heavy Rain

12°/7°

74%

23.7km/h

Sun. 18, Oct.

Rain Showers

13°/7°

74%

22.2km/h

Mon. 19, Oct.

Rain Showers

14°/7°

77%

25.4km/h

Tue. 20, Oct.

Rain Showers

14°/9°

79%

24.7km/h

Wed. 21, Oct.

Rain Showers

13°/8°

81%

24.7km/h

Thu. 22, Oct.

Rain Showers

13°/7°

77%

23.6km/h

Fri. 23, Oct.

Rain Showers

13°/7°

78%

23.8km/h

Sat. 24, Oct.

Rain Showers

12°/7°

77%

22.7km/h

Sun. 25, Oct.

Rain Showers

12°/6°

77%

21km/h

Mon. 26, Oct.

Rain Showers

11°/6°

79%

24km/h

Tue. 27, Oct.

Rain Showers

11°/5°

77%

23.4km/h

Wed. 28, Oct.

Rain Showers

11°/5°

79%

23.8km/h

Thu. 29, Oct.

Rain Showers

11°/5°

78%

24.4km/h

Fri. 30, Oct.

Rain Showers

10°/5°

79%

24.2km/h

Sat. 31, Oct.

Rain Showers

10°/5°

81%

25.7km/h

Sun. 1, Nov.

Rain Showers

10°/5°

78%

25.7km/h

Highest & Lowest Weather Forecasts

Temperature

High will be onFri. 2, Oct.

19°C

Low will be onTue. 6, Oct.

1°C

Humidity

High will be onWed. 21, Oct.

81%

Low will be onTue. 6, Oct.

51%

Wind Speed

High will be onMon. 5, Oct.

35.3km/h

Low will be onFri. 9, Oct.

15.1km/h

Precipitation

High will be onFri. 2, Oct.

17.03mm

Low will be onThu. 8, Oct.

0.01mm

High will be onWed. 7, Oct.

Low will be onSat. 17, Oct.

Our Blogs

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Oshawa Weather Condition Changes (Historic Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Oshawa experienced significant changes:

Oshawa Weather Forecast 30 Days (October - November 2026)
Oshawa, Ontario, Canada

Highest & Lowest Weather Forecasts

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Oshawa Weather Condition Changes (Historic Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Oshawa experienced significant changes:

Oshawa Weather Forecast 30 Days (October - November 2026)Oshawa, Ontario, Canada

Highest & Lowest Weather Forecasts

Our Blogs

Perth's Spring Warmth Peaks Then Pulls Back Hard

Mumbai's Monsoon Grip: Rain, Wind, and UV Swings Tracked

New Delhi's August Heat Surge, Dust Storms, and September Reset

Gurgaon's August Heat Surge, Sandstorms, and September Cool-Off

Amritsar August Heat Surge: Rain Fades, Haze Holds Firm

The Night a Wall of Dust Swallowed Phoenix: What 1,520 Air Quality Readings Reveal About Arizona's Air

New Delhi's Brutal June-July Swing: From 45°C to Monsoon Lows

London's July 2026 Heatwave: From 20°C to 34°C in Weeks

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Oshawa Weather Forecast 30 Days (October - November 2026)
Oshawa, Ontario, Canada