Tallinn, Harjumaa, Estonia Climate Change Severity

38
Moderate
The current climate change severity in Tallinn is Moderate, with a 21.2% 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 Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Tallinn 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), Tallinn temperature has changed by around +6.4%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
3016
-46.6%
cloudyCloudy
4327
-37.2%
rainyRainy
11791
-22.2%
snowySnowy
913
44.4%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Tallinn 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
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Tallinn experienced significant changes:

Temperature change of

+0.4 °C

Variation in annual rainfall

+25.3 %

Change in average humidity

-0.3 %

PM2.5 levels surged by

-6.1 %

Heatwave changed by

-3.9 day(s)

Coldwave changed by

-2.8 day(s)

Wind speeds changed by

-0.3 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.

Tallinn Weather Forecast 30 Days (September - October 2025)
Tallinn, Harjumaa, Estonia

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 28, Sep.
sunnySunny
Temperature Icon13°/7°
Humidity Icon76%
Wind Icon23km/h
Mon. 29, Sep.
sunnySunny
Temperature Icon12°/5°
Humidity Icon68%
Wind Icon16km/h
Tue. 30, Sep.
sunnySunny
Temperature Icon11°/4°
Humidity Icon67%
Wind Icon13km/h
Wed. 1, Oct.
sunnySunny
Temperature Icon10°/4°
Humidity Icon65%
Wind Icon10km/h
Thu. 2, Oct.
sunnySunny
Temperature Icon11°/4°
Humidity Icon69%
Wind Icon10km/h
Fri. 3, Oct.
sunnySunny
Temperature Icon12°/4°
Humidity Icon67%
Wind Icon13km/h
Sat. 4, Oct.
sunnySunny
Temperature Icon13°/6°
Humidity Icon75%
Wind Icon13km/h
Sun. 5, Oct.
sunnySunny
Temperature Icon15°/7°
Humidity Icon75%
Wind Icon17km/h
Mon. 6, Oct.
sunnySunny
Temperature Icon13°/7°
Humidity Icon78%
Wind Icon10km/h
Tue. 7, Oct.
partly cloudyPartly Cloudy
Temperature Icon14°/9°
Humidity Icon83%
Wind Icon14km/h
Wed. 8, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/11°
Humidity Icon85%
Wind Icon21km/h
Thu. 9, Oct.
sunnySunny
Temperature Icon11°/9°
Humidity Icon76%
Wind Icon21km/h
Fri. 10, Oct.
sunnySunny
Temperature Icon12°/7°
Humidity Icon79%
Wind Icon12km/h
Sat. 11, Oct.
partly cloudyPartly Cloudy
Temperature Icon12°/6°
Humidity Icon82%
Wind Icon23km/h
Sun. 12, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/6°
Humidity Icon81%
Wind Icon22km/h
Mon. 13, Oct.
moderate rain at timesModerate rain at times
Temperature Icon9°/6°
Humidity Icon82%
Wind Icon20km/h
Tue. 14, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/6°
Humidity Icon82%
Wind Icon23km/h
Wed. 15, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/6°
Humidity Icon83%
Wind Icon24km/h
Thu. 16, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon9°/5°
Humidity Icon79%
Wind Icon22km/h
Fri. 17, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/5°
Humidity Icon82%
Wind Icon22km/h
Sat. 18, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/5°
Humidity Icon82%
Wind Icon23km/h
Sun. 19, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon81%
Wind Icon23km/h
Mon. 20, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon84%
Wind Icon18km/h
Tue. 21, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon82%
Wind Icon22km/h
Wed. 22, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/3°
Humidity Icon84%
Wind Icon26km/h
Thu. 23, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon8°/4°
Humidity Icon84%
Wind Icon23km/h
Fri. 24, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon7°/4°
Humidity Icon81%
Wind Icon21km/h
Sat. 25, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon7°/3°
Humidity Icon83%
Wind Icon22km/h
Sun. 26, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon86%
Wind Icon22km/h
Mon. 27, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/4°
Humidity Icon87%
Wind Icon23km/h
Tue. 28, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon86%
Wind Icon24km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 8, Oct.

14.7°C

Low will be onWed. 22, Oct.

3.4°C

HumidityHumidity

High will be onMon. 27, Oct.

87%

Low will be onWed. 1, Oct.

65%

Wind SpeedWind Speed

High will be onWed. 22, Oct.

25.6km/h

Low will be onWed. 1, Oct.

10.1km/h

PrecipitationPrecipitation

High will be onMon. 20, Oct.

3.6mm

Low will be onSat. 11, Oct.

0.01mm

Ultraviolet IndexUV

High will be onTue. 7, Oct.

4

Low will be onMon. 29, Sep.

0.4

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