Sint Niklaas, Flanders, Belgium Climate Change Severity

62
Very High
The current climate change severity in Sint Niklaas is Very High, with a 20.9% 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 Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Sint Niklaas 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), Sint Niklaas temperature has changed by around +7.5%, 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
3245
40.6%
cloudyCloudy
5242
-19.2%
rainyRainy
13071
-45.3%
snowySnowy
13
200%
mistyMisty
02
100%

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

Climate Change Indicators:

Over the past 15 years, Sint Niklaas has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100

Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Sint Niklaas experienced significant changes:

Temperature change of

+0.8 °C

Variation in annual rainfall

-32.8 %

Change in average humidity

-11.1 %

PM2.5 levels surged by

-9.2 %

Heatwave changed by

-10.2 day(s)

Coldwave changed by

-6.8 day(s)

Wind speeds changed by

+0.5 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Sint Niklaas's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

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

Sint Niklaas Weather Forecast 30 Days (September - October 2025)
Sint Niklaas, Flanders, Belgium

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 21, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/11°
Humidity Icon70%
Wind Icon27km/h
Mon. 22, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon16°/9°
Humidity Icon60%
Wind Icon22km/h
Tue. 23, Sep.
partly cloudyPartly Cloudy
Temperature Icon18°/7°
Humidity Icon64%
Wind Icon23km/h
Wed. 24, Sep.
sunnySunny
Temperature Icon19°/7°
Humidity Icon59%
Wind Icon27km/h
Thu. 25, Sep.
overcastOvercast
Temperature Icon15°/9°
Humidity Icon58%
Wind Icon19km/h
Fri. 26, Sep.
partly cloudyPartly Cloudy
Temperature Icon19°/9°
Humidity Icon65%
Wind Icon15km/h
Sat. 27, Sep.
sunnySunny
Temperature Icon20°/9°
Humidity Icon65%
Wind Icon10km/h
Sun. 28, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon16°/10°
Humidity Icon73%
Wind Icon17km/h
Mon. 29, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/8°
Humidity Icon82%
Wind Icon25km/h
Tue. 30, Sep.
partly cloudyPartly Cloudy
Temperature Icon16°/10°
Humidity Icon80%
Wind Icon19km/h
Wed. 1, Oct.
sunnySunny
Temperature Icon20°/9°
Humidity Icon67%
Wind Icon21km/h
Thu. 2, Oct.
partly cloudyPartly Cloudy
Temperature Icon18°/9°
Humidity Icon73%
Wind Icon21km/h
Fri. 3, Oct.
sunnySunny
Temperature Icon20°/9°
Humidity Icon69%
Wind Icon16km/h
Sat. 4, Oct.
sunnySunny
Temperature Icon20°/9°
Humidity Icon67%
Wind Icon14km/h
Sun. 5, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/11°
Humidity Icon82%
Wind Icon23km/h
Mon. 6, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/10°
Humidity Icon83%
Wind Icon21km/h
Tue. 7, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/10°
Humidity Icon82%
Wind Icon21km/h
Wed. 8, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/10°
Humidity Icon82%
Wind Icon17km/h
Thu. 9, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon79%
Wind Icon16km/h
Fri. 10, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon16°/10°
Humidity Icon79%
Wind Icon19km/h
Sat. 11, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/9°
Humidity Icon80%
Wind Icon20km/h
Sun. 12, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/9°
Humidity Icon81%
Wind Icon19km/h
Mon. 13, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/9°
Humidity Icon81%
Wind Icon21km/h
Tue. 14, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/8°
Humidity Icon82%
Wind Icon18km/h
Wed. 15, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/9°
Humidity Icon81%
Wind Icon18km/h
Thu. 16, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/8°
Humidity Icon81%
Wind Icon17km/h
Fri. 17, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/10°
Humidity Icon82%
Wind Icon19km/h
Sat. 18, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/9°
Humidity Icon82%
Wind Icon17km/h
Sun. 19, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/10°
Humidity Icon82%
Wind Icon19km/h
Mon. 20, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/10°
Humidity Icon82%
Wind Icon21km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 27, Sep.

20.4°C

Low will be onTue. 23, Sep.

7.2°C

HumidityHumidity

High will be onMon. 6, Oct.

83%

Low will be onThu. 25, Sep.

58%

Wind SpeedWind Speed

High will be onWed. 24, Sep.

27km/h

Low will be onSat. 27, Sep.

9.7km/h

PrecipitationPrecipitation

High will be onMon. 6, Oct.

4.5mm

Low will be onTue. 23, Sep.

0.05mm

Ultraviolet IndexUV

High will be onWed. 24, Sep.

4

Low will be onSun. 21, Sep.

0.6

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