Lahti, Paijat Hame, Finland Climate Change Severity

43
High
The current climate change severity in Lahti is High, with a -7.7% 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 Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Lahti 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), Lahti temperature has changed by around +20.7%, 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
1613
-18.7%
cloudyCloudy
4141
0%
rainyRainy
9466
-29.7%
snowySnowy
1113
18.1%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Lahti has experienced measurable shifts in key climate parameters, contributing to the current severity score of 43 (within the High severity category). While the score remains High, certain factors have improved over time. Here’s a breakdown of the specific changes observed:

Severity Score

43/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Lahti experienced significant changes:

Temperature change of

+1.008 °C

Variation in annual rainfall

+9.4 %

Change in average humidity

-4.4 %

PM2.5 levels surged by

-24.8 %

Heatwave changed by

-6 day(s)

Coldwave changed by

-9.3 day(s)

Wind speeds changed by

+1.3 km/h

These indicators show improvement in key parametes of climate, but Lahti remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

Check how we calculate Climate Change Severity
Based on data from Jan. to Jul.

Lahti Weather Forecast 30 Days (August - September 2025)
Lahti, Paijat Hame, Finland

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 5, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon23°/15°
Humidity Icon79%
Wind Icon20km/h
Wed. 6, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon20°/12°
Humidity Icon70%
Wind Icon24km/h
Thu. 7, Aug.
partly cloudyPartly Cloudy
Temperature Icon22°/10°
Humidity Icon64%
Wind Icon12km/h
Fri. 8, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/10°
Humidity Icon71%
Wind Icon13km/h
Sat. 9, Aug.
sunnySunny
Temperature Icon24°/11°
Humidity Icon63%
Wind Icon12km/h
Sun. 10, Aug.
partly cloudyPartly Cloudy
Temperature Icon20°/12°
Humidity Icon86%
Wind Icon9km/h
Mon. 11, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/13°
Humidity Icon91%
Wind Icon10km/h
Tue. 12, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/12°
Humidity Icon78%
Wind Icon20km/h
Wed. 13, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/11°
Humidity Icon80%
Wind Icon17km/h
Thu. 14, Aug.
sunnySunny
Temperature Icon23°/10°
Humidity Icon63%
Wind Icon11km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon25°/12°
Humidity Icon59%
Wind Icon5km/h
Sat. 16, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/14°
Humidity Icon70%
Wind Icon7km/h
Sun. 17, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/13°
Humidity Icon80%
Wind Icon7km/h
Mon. 18, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/12°
Humidity Icon79%
Wind Icon18km/h
Tue. 19, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/13°
Humidity Icon76%
Wind Icon16km/h
Wed. 20, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon20°/12°
Humidity Icon71%
Wind Icon14km/h
Thu. 21, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/11°
Humidity Icon73%
Wind Icon13km/h
Fri. 22, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/12°
Humidity Icon77%
Wind Icon13km/h
Sat. 23, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/12°
Humidity Icon78%
Wind Icon13km/h
Sun. 24, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon19°/11°
Humidity Icon78%
Wind Icon14km/h
Mon. 25, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/11°
Humidity Icon77%
Wind Icon12km/h
Tue. 26, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/11°
Humidity Icon79%
Wind Icon13km/h
Wed. 27, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon19°/11°
Humidity Icon76%
Wind Icon13km/h
Thu. 28, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/11°
Humidity Icon79%
Wind Icon13km/h
Fri. 29, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon18°/11°
Humidity Icon78%
Wind Icon14km/h
Sat. 30, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/11°
Humidity Icon81%
Wind Icon12km/h
Sun. 31, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/10°
Humidity Icon79%
Wind Icon12km/h
Mon. 1, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/10°
Humidity Icon81%
Wind Icon14km/h
Tue. 2, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/10°
Humidity Icon79%
Wind Icon14km/h
Wed. 3, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/9°
Humidity Icon82%
Wind Icon14km/h
Thu. 4, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon80%
Wind Icon13km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 15, Aug.

24.7°C

Low will be onThu. 4, Sep.

9°C

HumidityHumidity

High will be onMon. 11, Aug.

91%

Low will be onFri. 15, Aug.

59%

Wind SpeedWind Speed

High will be onWed. 6, Aug.

24.1km/h

Low will be onFri. 15, Aug.

5.4km/h

PrecipitationPrecipitation

High will be onThu. 28, Aug.

5.4mm

Low will be onThu. 7, Aug.

0.02mm

Ultraviolet IndexUV

High will be onThu. 14, Aug.

5

Low will be onThu. 7, Aug.

0.7

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