Hannover, Lower Saxony, Germany Climate Change Severity

48
High
The current climate change severity in Hannover is High, with a 0.2% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Hannover 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), Hannover temperature has changed by around +5.6%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
2439
62.5%
cloudyCloudy
4927
-44.8%
rainyRainy
10862
-42.5%
snowySnowy
34
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, Hannover 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
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Hannover experienced significant changes:

Temperature change of

+0.5 °C

Variation in annual rainfall

-31.3 %

Change in average humidity

-6.04 %

PM2.5 levels surged by

+100 %

Heatwave changed by

-4.6 day(s)

Coldwave changed by

-5.7 day(s)

Wind speeds changed by

-0.3 km/h

These indicators show that Hannover 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 Jul.

Hannover Weather Forecast 30 Days (August - September 2025)
Hannover, Lower Saxony, Germany

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Mon. 11, Aug.
sunnySunny
Temperature Icon28°/12°
Humidity Icon55%
Wind Icon9km/h
Tue. 12, Aug.
sunnySunny
Temperature Icon31°/16°
Humidity Icon43%
Wind Icon15km/h
Wed. 13, Aug.
sunnySunny
Temperature Icon36°/17°
Humidity Icon40%
Wind Icon16km/h
Thu. 14, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon34°/23°
Humidity Icon46%
Wind Icon18km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon30°/20°
Humidity Icon60%
Wind Icon14km/h
Sat. 16, Aug.
partly cloudyPartly Cloudy
Temperature Icon24°/15°
Humidity Icon71%
Wind Icon19km/h
Sun. 17, Aug.
partly cloudyPartly Cloudy
Temperature Icon28°/13°
Humidity Icon62%
Wind Icon13km/h
Mon. 18, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/17°
Humidity Icon54%
Wind Icon13km/h
Tue. 19, Aug.
partly cloudyPartly Cloudy
Temperature Icon26°/16°
Humidity Icon61%
Wind Icon21km/h
Wed. 20, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/13°
Humidity Icon70%
Wind Icon16km/h
Thu. 21, Aug.
sunnySunny
Temperature Icon22°/10°
Humidity Icon64%
Wind Icon13km/h
Fri. 22, Aug.
moderate rainModerate rain
Temperature Icon13°/11°
Humidity Icon88%
Wind Icon18km/h
Sat. 23, Aug.
partly cloudyPartly Cloudy
Temperature Icon20°/11°
Humidity Icon67%
Wind Icon22km/h
Sun. 24, Aug.
sunnySunny
Temperature Icon20°/12°
Humidity Icon54%
Wind Icon26km/h
Mon. 25, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/15°
Humidity Icon68%
Wind Icon19km/h
Tue. 26, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/15°
Humidity Icon69%
Wind Icon19km/h
Wed. 27, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/14°
Humidity Icon74%
Wind Icon17km/h
Thu. 28, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon23°/13°
Humidity Icon70%
Wind Icon16km/h
Fri. 29, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon73%
Wind Icon16km/h
Sat. 30, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon74%
Wind Icon16km/h
Sun. 31, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon72%
Wind Icon17km/h
Mon. 1, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon21°/12°
Humidity Icon73%
Wind Icon14km/h
Tue. 2, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon21°/12°
Humidity Icon72%
Wind Icon14km/h
Wed. 3, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon22°/13°
Humidity Icon70%
Wind Icon15km/h
Thu. 4, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon22°/13°
Humidity Icon73%
Wind Icon16km/h
Fri. 5, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon22°/13°
Humidity Icon72%
Wind Icon17km/h
Sat. 6, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon22°/12°
Humidity Icon70%
Wind Icon16km/h
Sun. 7, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/13°
Humidity Icon72%
Wind Icon17km/h
Mon. 8, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/13°
Humidity Icon74%
Wind Icon16km/h
Tue. 9, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon73%
Wind Icon15km/h
Wed. 10, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/13°
Humidity Icon75%
Wind Icon16km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 13, Aug.

35.5°C

Low will be onThu. 21, Aug.

10.1°C

HumidityHumidity

High will be onFri. 22, Aug.

88%

Low will be onWed. 13, Aug.

40%

Wind SpeedWind Speed

High will be onSun. 24, Aug.

25.9km/h

Low will be onMon. 11, Aug.

9km/h

PrecipitationPrecipitation

High will be onFri. 22, Aug.

6.8mm

Low will be onFri. 15, Aug.

0.05mm

Ultraviolet IndexUV

High will be onSun. 17, Aug.

6

Low will be onThu. 14, Aug.

1.3

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