Tromso, Troms, Norway Climate Change Severity

57
High
The current climate change severity in Tromso is High, with a 26.3% 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
40
High
60
Very High
80
Extreme
100


Tromso Weather Condition Changes (Historic Vs 2026)

0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Tromso temperature has changed by around -5.4%, 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)

HistoricDays

Year 2026Days

Change

sunnySunny
2439
62.5%

cloudyCloudy
4523
-48.8%

rainyRainy
13186
-34.3%

snowySnowy
3259
84.3%

mistyMisty
04
100%

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

Climate Change Indicators:

Over the past 16 years, Tromso 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 2026, Tromso experienced significant changes:

Temperature change of

-0.16 °C


Variation in annual rainfall

+19.56 %


Change in average humidity

-1.03 %


PM2.5 levels surged by

-31.56 %


Heatwave changed by

-14 Days


Coldwave changed by

-8 Days


Wind speeds changed by

+4.16 km/h


These indicators show that Tromso 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.

Tromso Weather Forecast 30 Days (October - November 2026)
Tromso, Troms, Norway


Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 3, Oct.
partly cloudyPartly Cloudy

Temperature Icon13°/9°

Humidity Icon79%

Wind Icon19.8km/h
Sun. 4, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon11°/8°

Humidity Icon78%

Wind Icon58.7km/h
Mon. 5, Oct.
overcastOvercast

Temperature Icon9°/7°

Humidity Icon78%

Wind Icon25.9km/h
Tue. 6, Oct.
light rain showerRain Shower

Temperature Icon8°/5°

Humidity Icon83%

Wind Icon32.4km/h
Wed. 7, Oct.
light sleet showersSleet Showers

Temperature Icon5°/4°

Humidity Icon80%

Wind Icon49.7km/h
Thu. 8, Oct.
light sleet showersSleet Showers

Temperature Icon5°/3°

Humidity Icon70%

Wind Icon40km/h
Fri. 9, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon4°/-3°

Humidity Icon73%

Wind Icon22km/h
Sat. 10, Oct.
overcastOvercast

Temperature Icon3°/-3°

Humidity Icon72%

Wind Icon20.2km/h
Sun. 11, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon5°/1°

Humidity Icon85%

Wind Icon16.6km/h
Mon. 12, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon4°/1°

Humidity Icon86%

Wind Icon17.2km/h
Tue. 13, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon4°/0°

Humidity Icon84%

Wind Icon16.7km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon4°/0°

Humidity Icon85%

Wind Icon19.3km/h
Thu. 15, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon4°/1°

Humidity Icon85%

Wind Icon19.8km/h
Fri. 16, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon4°/0°

Humidity Icon88%

Wind Icon17.7km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon3°/0°

Humidity Icon84%

Wind Icon17.8km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon3°/0°

Humidity Icon86%

Wind Icon16.3km/h
Mon. 19, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon3°/-1°

Humidity Icon86%

Wind Icon15.9km/h
Tue. 20, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon2°/-1°

Humidity Icon81%

Wind Icon17.4km/h
Wed. 21, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon2°/-1°

Humidity Icon85%

Wind Icon17.3km/h
Thu. 22, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-1°

Humidity Icon83%

Wind Icon17.3km/h
Fri. 23, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-2°

Humidity Icon83%

Wind Icon16.5km/h
Sat. 24, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-2°

Humidity Icon81%

Wind Icon15.6km/h
Sun. 25, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-2°

Humidity Icon82%

Wind Icon16.9km/h
Mon. 26, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-2°

Humidity Icon84%

Wind Icon17.7km/h
Tue. 27, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-2°

Humidity Icon83%

Wind Icon16.7km/h
Wed. 28, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon2°/-3°

Humidity Icon85%

Wind Icon18.5km/h
Thu. 29, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-3°

Humidity Icon87%

Wind Icon17km/h
Fri. 30, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon0°/-4°

Humidity Icon83%

Wind Icon17.6km/h
Sat. 31, Oct.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-4°

Humidity Icon86%

Wind Icon16.6km/h
Sun. 1, Nov.
moderate or heavy snow showersSnow Showers

Temperature Icon1°/-4°

Humidity Icon84%

Wind Icon18.9km/h
Mon. 2, Nov.
moderate or heavy snow showersSnow Showers

Temperature Icon2°/-3°

Humidity Icon85%

Wind Icon20.3km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 3, Oct.

13°C


Low will be onFri. 30, Oct.

-4°C

HumidityHumidity

High will be onFri. 16, Oct.

88%


Low will be onThu. 8, Oct.

70%

Wind SpeedWind Speed

High will be onSun. 4, Oct.

58.7km/h


Low will be onSat. 24, Oct.

15.6km/h

PrecipitationPrecipitation

High will be onTue. 6, Oct.

10.1mm


Low will be onSat. 10, Oct.

0.01mm

Ultraviolet IndexUV

High will be onFri. 9, Oct.

2


Low will be onTue. 6, Oct.

0.1