Haarlem, Noord Holland, Netherlands Climate Change Severity

48
High
The current climate change severity in Haarlem is High, with a 4.4% 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 Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Haarlem 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), Haarlem temperature has changed by around +2.06%, 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
3747
27.02%
cloudyCloudy
6550
-23.07%
rainyRainy
163103
-36.8%
snowySnowy
10
-100%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Haarlem 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, Haarlem experienced significant changes:

Temperature change of

+0.2 °C

Variation in annual rainfall

-21.9 %

Change in average humidity

-3.9 %

PM2.5 levels surged by

-12.5 %

Heatwave changed by

-13.8 day(s)

Coldwave changed by

-7.6 day(s)

Wind speeds changed by

-0.8 km/h

These indicators show that Haarlem 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 Oct.

Haarlem Weather Forecast 30 Days (November - December 2025)
Haarlem, Noord Holland, Netherlands

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sat. 15, Nov.
moderate rainModerate rain
Temperature Icon8°/8°
Humidity Icon94%
Wind Icon35km/h
Sun. 16, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/8°
Humidity Icon78%
Wind Icon25km/h
Mon. 17, Nov.
moderate rainModerate rain
Temperature Icon9°/7°
Humidity Icon61%
Wind Icon49km/h
Tue. 18, Nov.
moderate rainModerate rain
Temperature Icon8°/6°
Humidity Icon65%
Wind Icon38km/h
Wed. 19, Nov.
moderate rainModerate rain
Temperature Icon7°/3°
Humidity Icon82%
Wind Icon23km/h
Thu. 20, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon6°/4°
Humidity Icon75%
Wind Icon13km/h
Fri. 21, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon8°/4°
Humidity Icon65%
Wind Icon28km/h
Sat. 22, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/6°
Humidity Icon71%
Wind Icon52km/h
Sun. 23, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon8°/6°
Humidity Icon80%
Wind Icon56km/h
Mon. 24, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon10°/10°
Humidity Icon79%
Wind Icon47km/h
Tue. 25, Nov.
moderate rainModerate rain
Temperature Icon12°/9°
Humidity Icon88%
Wind Icon73km/h
Wed. 26, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/8°
Humidity Icon69%
Wind Icon40km/h
Thu. 27, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon7°/6°
Humidity Icon68%
Wind Icon46km/h
Fri. 28, Nov.
moderate rainModerate rain
Temperature Icon4°/2°
Humidity Icon73%
Wind Icon54km/h
Sat. 29, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/6°
Humidity Icon77%
Wind Icon33km/h
Sun. 30, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon77%
Wind Icon31km/h
Mon. 1, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon80%
Wind Icon31km/h
Tue. 2, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/5°
Humidity Icon81%
Wind Icon29km/h
Wed. 3, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon80%
Wind Icon32km/h
Thu. 4, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/5°
Humidity Icon79%
Wind Icon32km/h
Fri. 5, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon80%
Wind Icon37km/h
Sat. 6, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/6°
Humidity Icon78%
Wind Icon37km/h
Sun. 7, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/6°
Humidity Icon81%
Wind Icon38km/h
Mon. 8, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon80%
Wind Icon38km/h
Tue. 9, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/6°
Humidity Icon80%
Wind Icon40km/h
Wed. 10, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon79%
Wind Icon38km/h
Thu. 11, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon79%
Wind Icon35km/h
Fri. 12, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon81%
Wind Icon34km/h
Sat. 13, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/4°
Humidity Icon80%
Wind Icon32km/h
Sun. 14, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/4°
Humidity Icon80%
Wind Icon32km/h
Mon. 15, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon82%
Wind Icon33km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onTue. 25, Nov.

12°C

Low will be onFri. 28, Nov.

2.4°C

HumidityHumidity

High will be onSat. 15, Nov.

94%

Low will be onMon. 17, Nov.

61%

Wind SpeedWind Speed

High will be onTue. 25, Nov.

73.1km/h

Low will be onThu. 20, Nov.

12.6km/h

PrecipitationPrecipitation

High will be onTue. 18, Nov.

10.6mm

Low will be onThu. 20, Nov.

0.4mm

Ultraviolet IndexUV

High will be onMon. 24, Nov.

3

Low will be onThu. 20, Nov.

1

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