Harjavalta, Satakunta, Finland Climate Change Severity

38
Moderate
The current climate change severity in Harjavalta is Moderate, with a 16.4% improvement in the climate score compared to last 16 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Aug. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Harjavalta Weather Condition Changes (Historic Vs 2026)

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

Over the past 16 year(s), Harjavalta temperature has changed by around -14.8%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Aug. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
3063
110.00000000000001%
cloudyCloudy
5337
-30.1%
rainyRainy
10274
-27.4%
snowySnowy
816
100%
mistyMisty
022
100%

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

Climate Change Indicators:

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

Temperature change of

-0.97 °C

Variation in annual rainfall

-13.86 %

Change in average humidity

-1.94 %

PM2.5 levels surged by

+6.72 %

Heatwave changed by

-10 Days

Coldwave changed by

+2 Days

Wind speeds changed by

-0.53 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.

Harjavalta Weather Forecast 30 Days (September - October 2026)
Harjavalta, Satakunta, Finland

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Wed. 30, Sep.
sunnySunny
Temperature Icon15°/7°
Humidity Icon75%
Wind Icon9.4km/h
Thu. 1, Oct.
sunnySunny
Temperature Icon16°/8°
Humidity Icon84%
Wind Icon12.6km/h
Fri. 2, Oct.
sunnySunny
Temperature Icon17°/10°
Humidity Icon89%
Wind Icon16.2km/h
Sat. 3, Oct.
sunnySunny
Temperature Icon16°/10°
Humidity Icon87%
Wind Icon20.2km/h
Sun. 4, Oct.
overcastOvercast
Temperature Icon14°/11°
Humidity Icon84%
Wind Icon25.2km/h
Mon. 5, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/11°
Humidity Icon82%
Wind Icon24.8km/h
Tue. 6, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon14°/11°
Humidity Icon88%
Wind Icon30.2km/h
Wed. 7, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon14°/10°
Humidity Icon77%
Wind Icon31km/h
Thu. 8, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon10°/6°
Humidity Icon82%
Wind Icon21.4km/h
Fri. 9, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon10°/6°
Humidity Icon84%
Wind Icon19.5km/h
Sat. 10, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon10°/6°
Humidity Icon84%
Wind Icon20.6km/h
Sun. 11, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon10°/6°
Humidity Icon83%
Wind Icon20.7km/h
Mon. 12, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon9°/5°
Humidity Icon81%
Wind Icon19.9km/h
Tue. 13, Oct.
moderate rain at timesRain
Temperature Icon9°/5°
Humidity Icon82%
Wind Icon18.8km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon8°/4°
Humidity Icon82%
Wind Icon19.3km/h
Thu. 15, Oct.
heavy rain at timesHeavy Rain
Temperature Icon8°/4°
Humidity Icon80%
Wind Icon20.3km/h
Fri. 16, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon8°/5°
Humidity Icon79%
Wind Icon20.8km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon8°/5°
Humidity Icon82%
Wind Icon18.6km/h
Sun. 18, Oct.
heavy rain at timesHeavy Rain
Temperature Icon8°/4°
Humidity Icon82%
Wind Icon20.4km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon7°/4°
Humidity Icon82%
Wind Icon21km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon7°/3°
Humidity Icon83%
Wind Icon18.1km/h
Wed. 21, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon7°/3°
Humidity Icon81%
Wind Icon20.2km/h
Thu. 22, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon7°/3°
Humidity Icon83%
Wind Icon23km/h
Fri. 23, Oct.
heavy rain at timesHeavy Rain
Temperature Icon6°/3°
Humidity Icon83%
Wind Icon21.5km/h
Sat. 24, Oct.
moderate rain at timesRain
Temperature Icon7°/3°
Humidity Icon83%
Wind Icon19.6km/h
Sun. 25, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon7°/4°
Humidity Icon86%
Wind Icon22km/h
Mon. 26, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon7°/3°
Humidity Icon86%
Wind Icon19.9km/h
Tue. 27, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon7°/3°
Humidity Icon88%
Wind Icon20.1km/h
Wed. 28, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon6°/4°
Humidity Icon86%
Wind Icon20km/h
Thu. 29, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon6°/3°
Humidity Icon83%
Wind Icon22km/h
Fri. 30, Oct.
heavy rain at timesHeavy Rain
Temperature Icon6°/2°
Humidity Icon83%
Wind Icon22.1km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 2, Oct.

17°C

Low will be onFri. 30, Oct.

2°C

HumidityHumidity

High will be onFri. 2, Oct.

89%

Low will be onWed. 30, Sep.

75%

Wind SpeedWind Speed

High will be onWed. 7, Oct.

31km/h

Low will be onWed. 30, Sep.

9.4km/h

PrecipitationPrecipitation

High will be onTue. 6, Oct.

5.1mm

Low will be onSun. 4, Oct.

0.1mm

Ultraviolet IndexUV

High will be onMon. 5, Oct.

4

Low will be onWed. 21, Oct.

1

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