Harjavalta, Satakunta, Finland Climate Change Severity

38
Moderate
The current climate change severity in Harjavalta is Moderate, with a 21.5% 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 Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Harjavalta 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), Harjavalta temperature has changed by around +11.06%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
3822
-42.1%
cloudyCloudy
6839
-42.6%
rainyRainy
132111
-15.9%
snowySnowy
910
11.1%
mistyMisty
06
100%

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

Climate Change Indicators:

Over the past 15 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 2025, Harjavalta experienced significant changes:

Temperature change of

+0.7 °C

Variation in annual rainfall

-16.3 %

Change in average humidity

-2.04 %

PM2.5 levels surged by

-7.7 %

Heatwave changed by

+3.6 day(s)

Coldwave changed by

-5.3 day(s)

Wind speeds changed by

+0.6 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 Oct.

Harjavalta Weather Forecast 30 Days (November - December 2025)
Harjavalta, Satakunta, Finland

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Thu. 6, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon10°/8°
Humidity Icon89%
Wind Icon19km/h
Fri. 7, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon10°/9°
Humidity Icon96%
Wind Icon13km/h
Sat. 8, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/5°
Humidity Icon95%
Wind Icon9km/h
Sun. 9, Nov.
sunnySunny
Temperature Icon4°/0°
Humidity Icon85%
Wind Icon13km/h
Mon. 10, Nov.
cloudyCloudy
Temperature Icon3°/0°
Humidity Icon77%
Wind Icon8km/h
Tue. 11, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon2°/0°
Humidity Icon89%
Wind Icon25km/h
Wed. 12, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon8°/6°
Humidity Icon92%
Wind Icon23km/h
Thu. 13, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/8°
Humidity Icon90%
Wind Icon21km/h
Fri. 14, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon7°/6°
Humidity Icon89%
Wind Icon17km/h
Sat. 15, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon7°/6°
Humidity Icon92%
Wind Icon17km/h
Sun. 16, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon6°/2°
Humidity Icon92%
Wind Icon19km/h
Mon. 17, Nov.
sunnySunny
Temperature Icon0°/-3°
Humidity Icon68%
Wind Icon22km/h
Tue. 18, Nov.
overcastOvercast
Temperature Icon-1°/-3°
Humidity Icon65%
Wind Icon21km/h
Wed. 19, Nov.
light freezing rainLight freezing rain
Temperature Icon0°/-2°
Humidity Icon75%
Wind Icon20km/h
Thu. 20, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon3°/0°
Humidity Icon86%
Wind Icon21km/h
Fri. 21, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon3°/0°
Humidity Icon88%
Wind Icon22km/h
Sun. 23, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon3°/0°
Humidity Icon86%
Wind Icon23km/h
Mon. 24, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon3°/0°
Humidity Icon86%
Wind Icon23km/h
Tue. 25, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon3°/0°
Humidity Icon89%
Wind Icon22km/h
Wed. 26, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon2°/0°
Humidity Icon87%
Wind Icon20km/h
Thu. 27, Nov.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-1°
Humidity Icon88%
Wind Icon21km/h
Fri. 28, Nov.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon2°/-1°
Humidity Icon84%
Wind Icon22km/h
Sat. 29, Nov.
moderate snowModerate snow
Temperature Icon1°/-2°
Humidity Icon85%
Wind Icon22km/h
Sun. 30, Nov.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-2°
Humidity Icon86%
Wind Icon25km/h
Mon. 1, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-2°
Humidity Icon84%
Wind Icon23km/h
Tue. 2, Dec.
patchy moderate snowPatchy moderate snow
Temperature Icon1°/-3°
Humidity Icon84%
Wind Icon21km/h
Wed. 3, Dec.
patchy moderate snowPatchy moderate snow
Temperature Icon0°/-3°
Humidity Icon83%
Wind Icon21km/h
Thu. 4, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-3°
Humidity Icon88%
Wind Icon20km/h
Fri. 5, Dec.
moderate snowModerate snow
Temperature Icon1°/-3°
Humidity Icon86%
Wind Icon24km/h
Sat. 6, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-3°
Humidity Icon88%
Wind Icon21km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 7, Nov.

10°C

Low will be onThu. 4, Dec.

-3.5°C

HumidityHumidity

High will be onFri. 7, Nov.

96%

Low will be onTue. 18, Nov.

65%

Wind SpeedWind Speed

High will be onTue. 11, Nov.

24.8km/h

Low will be onMon. 10, Nov.

7.9km/h

PrecipitationPrecipitation

High will be onTue. 25, Nov.

3.4mm

Low will be onMon. 17, Nov.

0.01mm

Ultraviolet IndexUV

High will be onWed. 12, Nov.

2

Low will be onSun. 9, Nov.

0.1

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