Harstad, Troms, Norway Climate Change Severity

Moderate

The current climate change severity in Harstad is Moderate, with a 8.7% improvement in the climate score compared to last 16 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.

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

Low

020

Moderate

2040

High

4060

Very High

6080

Extreme

80100

°C

Harstad Climate Change Analysis

Real-time Weather

All Years

Temperature (°C)

Years

Years	Min Temp.	Avg Temp.	Max Temp.
	-6.9290322580645185	-4.393548387096775	-1.9548387096774196
	-11.417857142857144	-9.064285714285715	-6.732142857142856
	-7.899999999999999	-5.516129032258066	-3.4774193548387107
	-2.08	0.35666666666666663	2.136666666666667
	1.983870967741935	4.9548387096774205	7.34516129032258
2010	4.183333333333334	6.95	9.056666666666668
	8.680645161290323	11.858064516129033	14.50967741935484
	8.16451612903226	10.658064516129036	12.732258064516131
	6.573333333333334	8.67333333333333	10.540000000000001
	2.1451612903225814	4.251612903225805	5.896774193548389
	-6.753333333333332	-4.736666666666666	-2.6966666666666663
	-8.251612903225803	-5.929032258064516	-3.7612903225806456
	-6.322580645161291	-4.332258064516128	-2.3387096774193545
	-7.378571428571428	-5.114285714285714	-2.9678571428571425
	-3.564516129032258	-1.5451612903225809	0.11612903225806458
	0.6099999999999999	2.26	3.313333333333333
	2.4516129032258065	5.290322580645161	7.73548387096774
2011	8.763333333333332	11.353333333333332	13.58333333333333
	9.338709677419354	11.896774193548387	14.035483870967745
	10.12258064516129	12.4258064516129	14.48709677419355
	9.063333333333334	10.700000000000001	12.330000000000002
	4.8677419354838705	6.532258064516128	7.761290322580645
	2.976666666666666	4.76	6.213333333333336
	-3.4612903225806453	-1.4709677419354839	0.5903225806451612
	-6.825806451612903	-4.545161290322581	-2.545161290322581
	-6.30344827586207	-3.8	-1.7172413793103447
	-1.7967741935483865	0.21290322580645166	1.832258064516129
	-3.3866666666666663	-0.42666666666666697	1.9366666666666665
	2.6258064516129034	4.338709677419354	5.822580645161289
2012	5.853333333333334	8.276666666666667	10.126666666666667
	8.774193548387096	10.854838709677418	12.53225806451613
	8.19032258064516	10.561290322580646	12.53548387096774
	6.400000000000001	8.183333333333334	9.859999999999998
	0.62258064516129	2.774193548387097	4.6
	-1.3766666666666663	0.63	2.403333333333333
	-8.516129032258066	-6.264516129032258	-4.148387096774194
	-4.819354838709677	-2.390322580645161	-0.24193548387096792
	-6.535714285714285	-4.067857142857142	-1.6821428571428572
	-6.951612903225806	-4.516129032258066	-2.2967741935483876
	-2.04	0.4366666666666668	2.226666666666667
	4.519354838709678	8.219354838709679	10.935483870967742
2013	8.993333333333334	11.716666666666669	14
	9.799999999999999	12.24516129032258	14.251612903225809
	9.94516129032258	12.419354838709678	14.525806451612905
	7.949999999999999	10.263333333333332	12.42333333333333
	1.8096774193548397	3.6354838709677426	4.999999999999997
	-2.2566666666666664	0.09666666666666662	1.9833333333333334
	-3.503225806451614	-1.2322580645161287	1.0774193548387099
	-9.735483870967743	-7.935483870967745	-6.151612903225805
	-3.403571428571428	-1.2142857142857142	0.7714285714285714
	-2.293548387096774	-0.04516129032258058	1.7161290322580647
	-0.9233333333333333	1.5000000000000002	3.253333333333333
	1.854838709677419	4.612903225806451	6.94516129032258
2014	6.48	9.206666666666669	11.420000000000003
	12.409677419354837	16.4258064516129	19.54516129032258
	10.361290322580645	12.858064516129032	15.064516129032256
	6.853333333333334	8.54	10.160000000000002
	2.8903225806451607	4.696774193548387	6.1806451612903235
	-1.3366666666666667	1.0066666666666666	3.0666666666666673
	-4.606451612903225	-2.3580645161290326	-0.33225806451612927
	-7.487096774193548	-5.396774193548388	-3.290322580645161
	-5.1000000000000005	-2.2928571428571436	-0.26785714285714296
	-1.8935483870967742	0.3064516129032258	2.0548387096774188
	-0.8433333333333335	1.413333333333333	3.046666666666666
	3.5870967741935478	5.925806451612905	7.651612903225806
2015	5.84	7.906666666666667	9.476666666666667
	8.787096774193548	11.761290322580644	14.009677419354839
	10.709677419354838	13.725806451612902	16.461290322580645
	8.143333333333334	10.216666666666667	12.33666666666667
	3.135483870967742	4.922580645161291	6.483870967741935
	0.4000000000000002	2.126666666666667	3.6133333333333337
	-2.606451612903226	-0.3258064516129034	1.812903225806452
	-9.677419354838712	-7.248387096774194	-4.722580645161291
	-5.968965517241379	-3.203448275862069	-0.9827586206896555
	-2.9483870967741934	-0.8741935483870967	0.9483870967741937
	-0.36999999999999983	1.9066666666666665	3.886666666666667
	4.393548387096775	7.087096774193547	9.461290322580645
2016	6.199999999999999	8.640000000000002	10.546666666666669
	10.154838709677417	12.838709677419356	14.883870967741935
	8.55483870967742	11.099999999999996	13.251612903225807
	8.049999999999999	10.280000000000003	12.259999999999998
	2.9290322580645163	4.803225806451614	6.754838709677419
	-1.07	0.3133333333333332	1.636666666666667
	-0.3645161290322582	1.4870967741935481	3.151612903225807
	-3.3	-1.064516129032258	1.0225806451612902
	-5.521428571428571	-3.3678571428571424	-1.5428571428571427
	-4.983870967741935	-2.296774193548387	-0.14838709677419354
	-2.7700000000000005	-0.19666666666666663	1.72
	0.603225806451613	3.3645161290322574	5.241935483870969
2017	7.4433333333333325	10.439999999999998	12.833333333333336
	9.216129032258065	11.996774193548386	14.209677419354836
	9.441935483870965	11.670967741935486	13.590322580645166
	8.49	10.84	13.453333333333331
	3.5870967741935487	5.364516129032259	7.083870967741935
	-0.7166666666666667	0.7666666666666659	2.2566666666666664
	-4.529032258064516	-2.1387096774193544	-0.3290322580645161
	-6.974193548387097	-5.235483870967743	-3.5645161290322576
	-7.975	-5.810714285714285	-3.9678571428571416
	-6.777419354838709	-4.293548387096773	-2.109677419354838
	-0.7133333333333337	1.9966666666666666	4.050000000000001
	4.925806451612903	8.083870967741937	11.032258064516126
2018	5.793333333333335	7.66	9.166666666666668
	11.312903225806451	14.703225806451611	17.693548387096772
	10.458064516129031	12.667741935483873	14.577419354838709
	7.126666666666667	9.426666666666668	11.386666666666667
	3.5903225806451617	4.883870967741935	6.161290322580643
	3.1300000000000003	4.626666666666665	5.939999999999999
	-1.7903225806451613	-0.02580645161290316	1.42258064516129
	-6.245161290322581	-4.412903225806452	-2.7161290322580647
	-5.371428571428571	-3.092857142857142	-1.3142857142857138
	-5.016129032258063	-2.57741935483871	-0.8096774193548391
	0.2999999999999999	3.036666666666667	5.426666666666665
	3.090322580645162	5.493548387096774	7.500000000000003
2019	6.803333333333334	9.440000000000001	11.629999999999997
	9.180645161290322	12.574193548387097	15.225806451612904
	10.158064516129034	12.958064516129035	15.748387096774193
	5.913333333333332	8.080000000000002	10.196666666666667
	0.25483870967741923	2.02258064516129	3.474193548387097
	-5.5233333333333325	-3.33	-1.4200000000000006
	-3.290322580645162	-1.3096774193548382	0.45806451612903215
	-3.925806451612903	-1.8387096774193548	-0.18709677419354845
	-4.89655172413793	-2.3413793103448275	-0.7068965517241379
	-3.9064516129032256	-1.925806451612903	-0.23548387096774193
	-2.1899999999999995	-0.15999999999999975	1.4833333333333336
	0.8000000000000002	3.4	5.245161290322581
2020	7.673333333333333	10.913333333333332	13.460000000000003
	10.080645161290317	12.545161290322584	14.848387096774198
	9.2	11.619354838709679	13.732258064516131
	6.466666666666669	8.32	10.143333333333334
	2.935483870967742	4.690322580645163	6.216129032258065
	1.1533333333333335	2.82	4.24
	-2.7387096774193553	-0.7741935483870969	0.6193548387096774
	-5.974193548387097	-4.34516129032258	-3.080645161290322
	-5.8357142857142845	-3.7	-1.989285714285714
	-3.916129032258065	-1.5451612903225804	0.43870967741935496
	-1.9733333333333332	0.6133333333333333	2.4733333333333336
	2.412903225806451	4.758064516129032	6.845161290322581
2021	7.503333333333334	10.59	13.016666666666667
	9.506451612903225	12.287096774193548	14.806451612903226
	8.832258064516127	11.019354838709676	13.103225806451608
	6.273333333333334	8.19	10.203333333333331
	2.348387096774193	4.054838709677419	5.4870967741935495
	-1.7766666666666666	-0.19000000000000025	1.246666666666667
	-7.758064516129033	-5.529032258064517	-3.467741935483871
	-5.506451612903226	-3.2129032258064525	-1.1548387096774195
	-7.4107142857142865	-5.2250000000000005	-3.060714285714286
	-1.651612903225806	0.4096774193548388	2.1419354838709674
	-1.8066666666666664	0.6466666666666664	2.6366666666666663
	3.083870967741935	5.7870967741935475	7.990322580645162
2022	7.826666666666668	10.806666666666667	13.383333333333331
	10.11290322580645	12.890322580645163	15.038709677419357
	9.667741935483873	12.312903225806455	14.774193548387096
	6.36	8.48	10.553333333333333
	3.383870967741936	4.790322580645161	6.138709677419356
	-0.30333333333333334	1.030000000000001	2.3133333333333326
	-5.8032258064516125	-3.94516129032258	-2.254838709677419
	-4.935483870967741	-2.9258064516129036	-1.038709677419355
	-3.7428571428571424	-1.5178571428571428	0.5571428571428572
	-7.754838709677418	-4.751612903225807	-2.6032258064516123
	-0.5666666666666667	1.8099999999999998	3.8699999999999997
	2.893548387096774	5.351612903225807	7.47741935483871
2023	7.0133333333333345	10.12	12.889999999999999
	10.941935483870965	14.025806451612901	16.74516129032258
	11.40967741935484	13.961290322580641	16.409677419354836
	7.533333333333333	9.340000000000002	11.069999999999999
	0.5064516129032252	1.8741935483870964	3.1129032258064515
	-4.45	-2.9100000000000006	-1.3166666666666669
	-7.25806451612903	-4.932258064516128	-3.0451612903225804
	-7.822580645161289	-5.674193548387097	-3.5419354838709673
	-5.820689655172413	-3.496551724137931	-1.5724137931034485
	-3.3193548387096774	-1.1516129032258062	0.7032258064516129
	-3.673333333333334	-0.6833333333333335	1.63
	4.096774193548388	7.132258064516129	9.554838709677417
2024	8.69	11.586666666666666	13.976666666666668
	10.803225806451614	13.651612903225804	16.10322580645161
	11.996774193548385	14.66451612903226	17.125806451612902
	7.593333333333333	9.906666666666668	12.023333333333333
	3.0774193548387103	4.745161290322581	6.332258064516131
	-0.30999999999999966	1.363333333333333	3.123333333333333
	-4.467741935483871	-2.1903225806451614	-0.3580645161290323
	-6.193548387096774	-4.000000000000001	-1.896774193548387
	-2.6285714285714286	-0.4428571428571429	1.432142857142857
	-3.538709677419354	-1.2516129032258063	0.803225806451613
	-2.4666666666666672	-3.14563190310461e-17	1.7966666666666664
	3.1387096774193552	5.587096774193548	7.8419354838709685
2025	6.753333333333336	8.989999999999998	10.90333333333333
	9.803225806451612	12.825806451612904	15.206451612903226
	9.61290322580645	12.09032258064516	14.341935483870966
	9.453333333333331	11.396666666666667	13.45333333333333
	3.743333333333334	5.213333333333334	6.656666666666666
	-2.163333333333333	-0.7100000000000002	0.7400000000000001
	-2.5935483870967744	-0.9806451612903223	0.8774193548387097
	-9.180645161290323	-7.425806451612904	-5.512903225806452
	-8.260714285714284	-5.6571428571428575	-3.2571428571428584
	-0.9354838709677419	1.0612903225806454	2.612903225806451
	0.003333333333333499	2.416666666666667	4.646666666666666
2026	4.064516129032259	5.974193548387097	7.612903225806453
	8.816666666666666	10.676666666666668	12.393333333333336
	9.251612903225807	11.212903225806453	12.74516129032258
	7.490322580645164	10.193548387096776	12.490322580645163

Max Temp.

Avg Temp.

Min Temp.

Harstad Weather Condition Changes (Historic Vs 2026)

2026

Historic

2026

Over the past 16 year(s), Harstad temperature has changed by around -9.4%, 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

2433

37.5%

Cloudy

4428

-36.3%

Rainy

12791

-28.3%

Snowy

2052

160%

Misty

100%

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

Climate Change Indicators:

Over the past 16 years, Harstad has experienced measurable improvements in key climate parameters, contributing to the current severity score of 38 (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

38/100

Moderate

Low

020

Moderate

2040

High

4060

Very High

6080

Extreme

80100

From 2010 to 2026, Harstad experienced significant changes:

Temperature change of

-0.37 °C

Variation in annual rainfall

+14.19 %

Change in average humidity

+2.45 %

PM2.5 levels surged by

-2.92 %

Heatwave changed by

-11 Days

Coldwave changed by

-6 Days

Wind speeds changed by

+0.97 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.

Harstad Weather Forecast 30 Days (September - October 2026)
Harstad, Troms, Norway

Condition

Temperature

Humi.

Wind Speed

Wed. 30, Sep.

Overcast

10°/7°

77%

11.2km/h

Thu. 1, Oct.

Overcast

13°/8°

55%

11.9km/h

Fri. 2, Oct.

Sunny

12°/9°

82%

16.9km/h

Sat. 3, Oct.

Mist

13°/9°

87%

18.4km/h

Sun. 4, Oct.

Patchy rain nearby

9°/7°

82%

21.2km/h

Mon. 5, Oct.

Rain Shower

9°/8°

85%

31.3km/h

Tue. 6, Oct.

Patchy rain nearby

8°/5°

84%

31km/h

Wed. 7, Oct.

Rain Shower

8°/4°

86%

25.2km/h

Thu. 8, Oct.

Rain Showers

7°/4°

77%

15km/h

Fri. 9, Oct.

Rain Showers

7°/3°

77%

16.3km/h

Sat. 10, Oct.

Rain Showers

7°/3°

79%

15.5km/h

Sun. 11, Oct.

Rain Showers

7°/4°

81%

17.3km/h

Mon. 12, Oct.

Rain Showers

6°/4°

81%

17.2km/h

Tue. 13, Oct.

Rain Showers

6°/3°

78%

15.6km/h

Wed. 14, Oct.

Rain Showers

6°/3°

80%

18.5km/h

Thu. 15, Oct.

Rain Showers

6°/3°

80%

19.6km/h

Fri. 16, Oct.

Rain Showers

6°/3°

81%

17.8km/h

Sat. 17, Oct.

Rain Showers

6°/3°

78%

16.9km/h

Sun. 18, Oct.

Rain Showers

6°/3°

80%

17.6km/h

Mon. 19, Oct.

Rain Showers

5°/2°

78%

16.4km/h

Tue. 20, Oct.

Rain Showers

4°/1°

74%

16km/h

Wed. 21, Oct.

Rain Showers

4°/1°

77%

16.1km/h

Thu. 22, Oct.

Rain Showers

4°/1°

77%

16.8km/h

Fri. 23, Oct.

Rain Showers

4°/1°

78%

16.4km/h

Sat. 24, Oct.

Rain Showers

4°/1°

76%

16.3km/h

Sun. 25, Oct.

Rain Showers

4°/1°

76%

16km/h

Mon. 26, Oct.

Rain Showers

4°/1°

77%

16.1km/h

Tue. 27, Oct.

Rain Showers

4°/1°

77%

15.3km/h

Wed. 28, Oct.

Rain Showers

4°/1°

80%

18.2km/h

Thu. 29, Oct.

Rain Showers

3°/0°

80%

17.6km/h

Fri. 30, Oct.

Rain Showers

3°/-1°

79%

18.1km/h

Highest & Lowest Weather Forecasts

Temperature

High will be onThu. 1, Oct.

13°C

Low will be onFri. 30, Oct.

-1°C

Humidity

High will be onSat. 3, Oct.

87%

Low will be onThu. 1, Oct.

55%

Wind Speed

High will be onMon. 5, Oct.

31.3km/h

Low will be onWed. 30, Sep.

11.2km/h

Precipitation

High will be onTue. 6, Oct.

25.3mm

Low will be onWed. 30, Sep.

0.1mm

High will be onSun. 4, Oct.

Low will be onThu. 1, Oct.

0.5

Our Blogs

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Harstad Weather Condition Changes (Historic Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Harstad experienced significant changes:

Harstad Weather Forecast 30 Days (September - October 2026)
Harstad, Troms, Norway

Highest & Lowest Weather Forecasts

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Harstad Weather Condition Changes (Historic Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

Climate Change Indicators:

Severity Score

From 2010 to 2026, Harstad experienced significant changes:

Harstad Weather Forecast 30 Days (September - October 2026)Harstad, Troms, Norway

Highest & Lowest Weather Forecasts

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Harstad Weather Forecast 30 Days (September - October 2026)
Harstad, Troms, Norway