Saint John, New Brunswick, Canada Climate Change Severity

High

The current climate change severity in Saint John is High, with a 3.5% 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

Saint John Climate Change Analysis

Real-time Weather

All Years

Temperature (°C)

Years

Years	Min Temp.	Avg Temp.	Max Temp.
	-6.264516129032256	-3.648387096774193	-1.2903225806451613
	-4.153571428571429	-2.2749999999999986	-0.6107142857142861
	-1.2032258064516128	1.464516129032258	4.17741935483871
	3.7366666666666664	6.54	9.703333333333331
	7.161290322580645	10.622580645161293	14.293548387096774
2010	11.209999999999999	14.24333333333334	17.363333333333337
	15.200000000000001	18.125806451612902	21.345161290322583
	14.429032258064513	18.158064516129034	22.09032258064516
	12.243333333333334	15.273333333333335	18.296666666666674
	6.583870967741937	9.40645161290323	12.096774193548386
	1.1900000000000006	3.86	6.726666666666666
	-1.9709677419354839	0.31290322580645175	2.4354838709677424
	-8.948387096774194	-5.703225806451614	-2.9064516129032256
	-9.7	-5.617857142857145	-2.1928571428571435
	-4.648387096774194	-1.3064516129032253	1.767741935483871
	1.1600000000000001	4.329999999999999	7.076666666666666
	6.4161290322580635	9.358064516129033	12.416129032258068
2011	9.896666666666665	13.279999999999998	16.71666666666667
	13.854838709677415	17.370967741935488	20.990322580645167
	14.22258064516129	17.164516129032254	20.487096774193546
	12.130000000000003	15.326666666666666	18.67
	7.596774193548384	10.200000000000001	12.619354838709677
	2.516666666666667	5.663333333333335	8.47
	-2.5677419354838706	0.9387096774193552	4.087096774193549
	-7.596774193548387	-3.6354838709677413	-0.2741935483870969
	-7.517241379310346	-3.8103448275862064	-0.5482758620689655
	-1.6548387096774189	1.8451612903225807	5.077419354838709
	2.1533333333333333	5.739999999999999	9.299999999999999
	7.348387096774195	10.983870967741938	14.445161290322579
2012	10.713333333333333	14.096666666666668	17.6
	14.790322580645162	18.403225806451612	22.32580645161291
	16.083870967741937	18.970967741935482	22.72258064516129
	11.946666666666667	15.286666666666667	18.560000000000002
	7.780645161290321	10.774193548387098	13.690322580645162
	1.2399999999999998	3.6066666666666665	6.003333333333333
	-3.6838709677419352	-0.3741935483870967	2.5419354838709673
	-10.916129032258066	-6.412903225806451	-2.8967741935483873
	-7.4857142857142875	-4.42857142857143	-1.4714285714285713
	-2.261290322580645	0.11935483870967738	2.345161290322581
	0.6166666666666667	4.04	7.276666666666668
	6.038709677419354	9.36774193548387	12.745161290322583
2013	10.99	14.116666666666669	17.13
	15.658064516129034	19.04516129032258	22.445161290322584
	13.977419354838707	17.487096774193553	21.070967741935483
	11.2	14.293333333333333	17.493333333333332
	6.641935483870967	9.993548387096775	13.490322580645163
	-0.24000000000000013	2.926666666666667	6.1899999999999995
	-8.083870967741934	-4.180645161290323	-1.0387096774193547
	-9.80967741935484	-5.854838709677418	-2.1
	-8.80357142857143	-5.575000000000001	-2.989285714285714
	-9.061290322580643	-4.761290322580643	-1.1096774193548389
	0.18666666666666665	3.25	6.2299999999999995
	4.974193548387098	8.90967741935484	12.616129032258064
2014	10.586666666666666	14.276666666666669	17.73333333333333
	14.212903225806452	17.35483870967742	20.622580645161293
	14.138709677419357	17.380645161290325	21.24516129032258
	11.356666666666667	14.803333333333335	18.313333333333333
	8.574193548387095	11.290322580645164	13.938709677419354
	-0.2033333333333334	3.3966666666666674	6.463333333333334
	-2.6	0.40322580645161316	3.0193548387096776
	-11.412903225806451	-6.558064516129034	-2.587096774193549
	-15.189285714285713	-10.989285714285716	-7.021428571428571
	-7.561290322580645	-3.8451612903225802	-0.5451612903225806
	-0.8933333333333328	2.1266666666666665	4.879999999999999
	6.258064516129032	9.799999999999997	13.348387096774195
2015	9.363333333333333	12.726666666666668	15.709999999999999
	13.50967741935484	16.790322580645153	20.064516129032253
	15.312903225806453	18.319354838709685	21.470967741935482
	12.930000000000005	16.256666666666664	19.51666666666667
	4.958064516129033	8.435483870967742	11.474193548387099
	2.3833333333333333	5.086666666666664	7.620000000000001
	-0.5322580645161289	2.1064516129032262	4.39032258064516
	-6.848387096774195	-3.812903225806451	-1.0548387096774197
	-6.548275862068965	-2.237931034482759	1.5103448275862068
	-3.52258064516129	-0.4483870967741935	2.4612903225806453
	-9.806970050855549e-17	3.96	7.6433333333333335
	6.319354838709677	9.825806451612904	13.238709677419353
2016	10.400000000000004	13.73666666666667	16.896666666666665
	14.516129032258066	17.680645161290318	20.903225806451616
	14.912903225806453	18.06774193548387	21.367741935483874
	11.78333333333333	15.040000000000003	18.276666666666664
	6.835483870967742	9.941935483870969	12.858064516129032
	2.6166666666666667	4.86	7.276666666666668
	-6.12258064516129	-2.6548387096774193	0.664516129032258
	-6.319354838709676	-3.025806451612904	-0.14838709677419354
	-7.5357142857142865	-3.9964285714285723	-0.675
	-7.122580645161291	-3.0935483870967744	0.593548387096774
	2.0833333333333335	5.136666666666666	8.32
	6.270967741935484	9.725806451612902	13.006451612903225
2017	10.71	13.91	17.099999999999998
	13.512903225806452	16.951612903225808	20.406451612903226
	13.958064516129031	17.34516129032258	21.009677419354837
	12.83666666666667	15.913333333333336	19.31
	9.412903225806453	12.719354838709675	15.735483870967741
	0.4866666666666666	4.21	7.7333333333333325
	-7.174193548387097	-3.7	-0.24838709677419324
	-8.919354838709678	-4.458064516129033	-0.5193548387096775
	-5.47142857142857	-0.6714285714285715	3.110714285714286
	-2.512903225806452	0.05806451612903211	2.658064516129032
	0.51	3.8466666666666667	7.033333333333333
	6.132258064516129	10.4	14.422580645161291
2018	9.07666666666667	13.083333333333334	16.969999999999995
	14.787096774193545	18.287096774193547	21.84516129032259
	16.15483870967742	19.38387096774193	22.89677419354838
	12.093333333333335	15.440000000000001	18.763333333333332
	4.95483870967742	8.24516129032258	11.248387096774191
	-0.446666666666667	2.2566666666666664	4.95
	-6.525806451612903	-2.935483870967742	0.3806451612903224
	-10.054838709677421	-5.564516129032258	-0.5806451612903226
	-9.660714285714286	-6.121428571428571	-2.310714285714286
	-4.935483870967744	-1.5129032258064519	1.6419354838709677
	1.44	4.323333333333334	7.373333333333332
	4.5193548387096785	7.74516129032258	11.303225806451614
2019	9.8	13.419999999999998	17.16666666666667
	14.02903225806452	17.57741935483871	21.16129032258064
	14.199999999999994	17.51290322580645	21.099999999999998
	10.17	13.686666666666666	16.813333333333333
	7.232258064516128	9.806451612903226	12.55483870967742
	-0.8166666666666667	2.4466666666666663	5.313333333333334
	-4.064516129032259	-1.0999999999999999	1.9387096774193546
	-7.8193548387096765	-4.129032258064516	-0.8193548387096775
	-7.672413793103451	-3.5551724137931036	0.11034482758620681
	-3.806451612903226	-0.18064516129032254	3.2774193548387096
	-0.14333333333333328	3.76	7.293333333333335
	4.95483870967742	9.058064516129033	12.896774193548389
2020	10.843333333333334	14.829999999999997	18.84
	14.783870967741931	17.832258064516132	21.26129032258064
	14.57741935483871	17.98064516129032	21.741935483870964
	10.6	14.27	17.746666666666666
	5.9387096774193555	9.3	12.458064516129031
	1.79	5.419999999999999	8.46
	-2.0967741935483866	1.196774193548387	3.6967741935483875
	-5.2290322580645165	-2.841935483870968	-0.6258064516129032
	-8.3	-4.5	-1.1607142857142858
	-4.7870967741935475	-0.7193548387096773	3.209677419354838
	2.0599999999999996	5.72	9.35
	5.661290322580644	9.493548387096773	13.374193548387098
2021	11.933333333333334	15.709999999999997	19.610000000000003
	13.73225806451613	16.812903225806448	20.109677419354835
	15.261290322580646	18.34193548387097	22.08709677419355
	12.32333333333333	15.239999999999998	18.83
	7.6806451612903235	11.02903225806452	14.861290322580642
	1.413333333333333	4.673333333333331	8.159999999999998
	-3.9322580645161285	-0.4451612903225806	3.3741935483870957
	-12.396774193548387	-6.4322580645161285	-1.1806451612903224
	-8.167857142857143	-3.8714285714285706	-0.17500000000000004
	-3.4225806451612892	0.2645161290322579	3.929032258064516
	1.9733333333333332	5.13	8.696666666666665
	6.564516129032258	10.54516129032258	14.774193548387098
2022	10.85	14.313333333333334	18.066666666666663
	14.458064516129035	18	22.43225806451613
	15.52903225806452	18.325806451612902	21.858064516129037
	11.690000000000001	14.813333333333333	18.496666666666666
	8.116129032258064	11.548387096774192	15.274193548387096
	1.63	5.246666666666667	8.893333333333336
	-2.035483870967742	0.7999999999999999	3.641935483870968
	-4.409677419354838	-1.3064516129032258	2.061290322580645
	-9.453571428571431	-4.660714285714285	-0.48571428571428565
	-3.6677419354838703	-0.048387096774193596	3.6806451612903235
	1.6666666666666667	5.720000000000001	10.196666666666664
	5.470967741935483	9.990322580645163	14.693548387096772
2023	10.116666666666667	13.396666666666668	17.140000000000004
	15.5	18.419354838709673	22.190322580645166
	13.725806451612904	17.174193548387098	21.019354838709674
	11.996666666666668	15.399999999999999	19.970000000000002
	8.229032258064514	11.129032258064514	14.606451612903227
	-1.5266666666666668	2.17	6.0166666666666675
	-2.2387096774193544	0.938709677419355	3.9935483870967747
	-7.222580645161292	-3.8322580645161284	-0.267741935483871
	-5.9206896551724135	-2.493103448275862	0.7379310344827585
	-1.27741935483871	1.6387096774193544	4.806451612903225
	0.9966666666666665	4.823333333333333	8.88
	6.693548387096774	10.645161290322578	14.864516129032259
2024	11.109999999999998	15.143333333333333	19.46
	14.354838709677422	17.870967741935488	22.051612903225802
	14.096774193548386	17.367741935483874	21.403225806451612
	11.716666666666665	15.006666666666668	18.803333333333335
	7.06774193548387	9.841935483870966	13.116129032258065
	2.5266666666666664	5.003333333333333	7.416666666666667
	-3.9935483870967743	-0.9677419354838711	2.093548387096774
	-9.193548387096772	-5.367741935483871	-1.829032258064516
	-11.34642857142857	-6.210714285714286	-1.7142857142857146
	-3.148387096774193	0.47096774193548396	4.203225806451612
	1.716666666666667	5.040000000000002	8.82333333333333
	6.193548387096775	9.454838709677418	13.574193548387097
2025	9.373333333333333	12.543333333333333	16.05
	12.95483870967742	15.951612903225808	19.49677419354839
	12.051612903225807	15.541935483870967	19.480645161290322
	10.530000000000001	13.893333333333333	17.63
	8.163333333333332	10.43	12.893333333333333
	1.2300000000000002	3.973333333333333	6.683333333333334
	-6.212903225806452	-2.4645161290322575	1.0451612903225809
	-7.467741935483872	-4.52258064516129	-1.5774193548387099
	-6.717857142857142	-3.6678571428571436	-0.7678571428571429
	-3.1096774193548384	-0.048387096774193776	2.925806451612903
	1.23	5.096666666666667	9.733333333333333
2026	5.809677419354839	10.480645161290322	16.061290322580643
	10.043333333333333	14.716666666666665	20.58
	12.825806451612904	17.73225806451613	24.09032258064516
	13.867741935483872	17.451612903225808	22.125806451612902

Max Temp.

Avg Temp.

Min Temp.

Saint John Weather Condition Changes (Historic Vs 2026)

2026

Historic

2026

Over the past 16 year(s), Saint John temperature has changed by around +5.8%, 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

3076

153.3%

Cloudy

6027

-55.00000000000001%

Rainy

9055

-38.8%

Snowy

1116

45.4%

Misty

300%

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

Climate Change Indicators:

Over the past 16 years, Saint John has experienced measurable shifts in key climate parameters, contributing to the current severity score of 48 (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

48/100

High

Low

020

Moderate

2040

High

4060

Very High

6080

Extreme

80100

From 2010 to 2026, Saint John experienced significant changes:

Temperature change of

+0.39 °C

Variation in annual rainfall

+60.15 %

Change in average humidity

-3.8 %

PM2.5 levels surged by

-3.86 %

Heatwave changed by

-1 Days

Coldwave changed by

-5 Days

Wind speeds changed by

-2.51 km/h

These indicators show that Saint John 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.

Saint John Weather Forecast 30 Days (September - October 2026)
Saint John, New Brunswick, Canada

Condition

Temperature

Humi.

Wind Speed

Tue. 29, Sep.

Rain Shower

15°/13°

98%

18.4km/h

Wed. 30, Sep.

Overcast

19°/12°

89%

16.6km/h

Thu. 1, Oct.

Mist

18°/11°

91%

19.1km/h

Fri. 2, Oct.

Fog

15°/12°

97%

13.3km/h

Sat. 3, Oct.

Sunny

16°/8°

72%

23.4km/h

Sun. 4, Oct.

Overcast

13°/6°

70%

16.6km/h

Mon. 5, Oct.

Patchy rain nearby

14°/8°

91%

18km/h

Tue. 6, Oct.

Sunny

12°/4°

65%

18.4km/h

Wed. 7, Oct.

Rain Showers

15°/10°

83%

23.5km/h

Thu. 8, Oct.

Rain Showers

15°/9°

81%

26.6km/h

Fri. 9, Oct.

Rain Showers

14°/7°

77%

21.6km/h

Sat. 10, Oct.

Rain Showers

14°/7°

76%

24.8km/h

Sun. 11, Oct.

Rain Showers

14°/7°

75%

23.1km/h

Mon. 12, Oct.

Heavy Rain

13°/7°

77%

19.5km/h

Tue. 13, Oct.

Rain Showers

13°/7°

79%

20.8km/h

Wed. 14, Oct.

Rain Showers

14°/8°

84%

21.7km/h

Thu. 15, Oct.

Rain Showers

14°/8°

82%

24.9km/h

Fri. 16, Oct.

Rain Showers

14°/8°

82%

25.4km/h

Sat. 17, Oct.

Rain Showers

13°/7°

82%

25.6km/h

Sun. 18, Oct.

Rain Showers

12°/6°

78%

23.8km/h

Mon. 19, Oct.

Rain Showers

13°/7°

78%

24.1km/h

Tue. 20, Oct.

Rain Showers

13°/7°

82%

23.9km/h

Wed. 21, Oct.

Rain Showers

13°/8°

79%

21.1km/h

Thu. 22, Oct.

Rain Showers

13°/7°

81%

25.5km/h

Fri. 23, Oct.

Rain Showers

11°/6°

82%

24.8km/h

Sat. 24, Oct.

Rain Showers

12°/6°

81%

23.3km/h

Sun. 25, Oct.

Rain Showers

11°/6°

79%

23.1km/h

Mon. 26, Oct.

Rain Showers

11°/5°

78%

23.1km/h

Tue. 27, Oct.

Rain Showers

10°/5°

77%

23.3km/h

Wed. 28, Oct.

Rain Showers

10°/4°

78%

24.5km/h

Thu. 29, Oct.

Rain Showers

11°/5°

77%

22.5km/h

Highest & Lowest Weather Forecasts

Temperature

High will be onWed. 30, Sep.

19°C

Low will be onTue. 6, Oct.

4°C

Humidity

High will be onTue. 29, Sep.

98%

Low will be onTue. 6, Oct.

65%

Wind Speed

High will be onThu. 8, Oct.

26.6km/h

Low will be onFri. 2, Oct.

13.3km/h

Precipitation

High will be onMon. 5, Oct.

12.4mm

Low will be onSat. 3, Oct.

0.01mm

High will be onSat. 3, Oct.

Low will be onTue. 29, Sep.

0.8

Our Blogs

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Saint John Weather Condition Changes (Historic Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Saint John experienced significant changes:

Saint John Weather Forecast 30 Days (September - October 2026)
Saint John, New Brunswick, Canada

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Saint John Weather Condition Changes (Historic Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Saint John experienced significant changes:

Saint John Weather Forecast 30 Days (September - October 2026)Saint John, New Brunswick, Canada

Highest & Lowest Weather Forecasts

Our Blogs

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

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

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