Tonsberg, Vestfold, Norway Climate Change Severity

33
Moderate
The current climate change severity in Tonsberg is Moderate, with a 35.4% improvement in the climate score compared to last 15 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Tonsberg Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Tonsberg temperature has changed by around +6.9%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Sep. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
4649
6.5%
cloudyCloudy
6866
-2.9%
rainyRainy
12066
-45%
snowySnowy
68
33.3%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Tonsberg has experienced measurable improvements in key climate parameters, contributing to the current severity score of 33 (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

33/100

Moderate

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Tonsberg experienced significant changes:

Temperature change of

+0.6 °C

Variation in annual rainfall

-14.7 %

Change in average humidity

-2.5 %

PM2.5 levels surged by

-17.6 %

Heatwave changed by

-8.4 day(s)

Coldwave changed by

-4.4 day(s)

Wind speeds changed by

+0.7 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 Sep.

Tonsberg Weather Forecast 30 Days (October - November 2025)
Tonsberg, Vestfold, Norway

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 17, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/5°
Humidity Icon71%
Wind Icon21km/h
Sat. 18, Oct.
sunnySunny
Temperature Icon9°/4°
Humidity Icon63%
Wind Icon13km/h
Sun. 19, Oct.
partly cloudyPartly Cloudy
Temperature Icon9°/3°
Humidity Icon75%
Wind Icon18km/h
Mon. 20, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon8°/7°
Humidity Icon77%
Wind Icon18km/h
Tue. 21, Oct.
moderate rainModerate rain
Temperature Icon10°/7°
Humidity Icon92%
Wind Icon29km/h
Wed. 22, Oct.
moderate rainModerate rain
Temperature Icon12°/10°
Humidity Icon93%
Wind Icon28km/h
Thu. 23, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon11°/9°
Humidity Icon91%
Wind Icon16km/h
Fri. 24, Oct.
moderate rainModerate rain
Temperature Icon11°/9°
Humidity Icon91%
Wind Icon17km/h
Sat. 25, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/8°
Humidity Icon91%
Wind Icon23km/h
Sun. 26, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon7°/4°
Humidity Icon80%
Wind Icon24km/h
Mon. 27, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon6°/4°
Humidity Icon71%
Wind Icon23km/h
Tue. 28, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon6°/2°
Humidity Icon64%
Wind Icon12km/h
Wed. 29, Oct.
cloudyCloudy
Temperature Icon5°/2°
Humidity Icon76%
Wind Icon10km/h
Thu. 30, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon4°/2°
Humidity Icon72%
Wind Icon14km/h
Fri. 31, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/6°
Humidity Icon83%
Wind Icon22km/h
Sat. 1, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/5°
Humidity Icon84%
Wind Icon25km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/6°
Humidity Icon84%
Wind Icon26km/h
Mon. 3, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/5°
Humidity Icon84%
Wind Icon23km/h
Tue. 4, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon82%
Wind Icon20km/h
Wed. 5, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/4°
Humidity Icon82%
Wind Icon20km/h
Thu. 6, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon6°/4°
Humidity Icon81%
Wind Icon18km/h
Fri. 7, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon6°/3°
Humidity Icon82%
Wind Icon18km/h
Sat. 8, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon6°/3°
Humidity Icon83%
Wind Icon19km/h
Sun. 9, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/4°
Humidity Icon85%
Wind Icon24km/h
Mon. 10, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon6°/4°
Humidity Icon85%
Wind Icon21km/h
Wed. 12, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon6°/4°
Humidity Icon82%
Wind Icon22km/h
Thu. 13, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon6°/4°
Humidity Icon83%
Wind Icon20km/h
Fri. 14, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/3°
Humidity Icon85%
Wind Icon20km/h
Sat. 15, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/4°
Humidity Icon82%
Wind Icon22km/h
Sun. 16, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/4°
Humidity Icon81%
Wind Icon25km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 22, Oct.

11.7°C

Low will be onThu. 30, Oct.

1.6°C

HumidityHumidity

High will be onWed. 22, Oct.

93%

Low will be onSat. 18, Oct.

63%

Wind SpeedWind Speed

High will be onTue. 21, Oct.

29.2km/h

Low will be onWed. 29, Oct.

10.1km/h

PrecipitationPrecipitation

High will be onTue. 21, Oct.

19.9mm

Low will be onSun. 19, Oct.

0.08mm

Ultraviolet IndexUV

High will be onWed. 22, Oct.

3

Low will be onMon. 27, Oct.

1

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