Saint Denis, Ile De France, France Climate Change Severity

62
Very High
The current climate change severity in Saint Denis is Very High, with a 25.5% 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)

Saint Denis 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), Saint Denis temperature has changed by around +10.6%, 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
3352
57.5%
cloudyCloudy
5840
-31.03%
rainyRainy
12281
-33.6%
snowySnowy
11
0%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Saint Denis 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, Saint Denis experienced significant changes:

Temperature change of

+1.3 °C

Variation in annual rainfall

-20.6 %

Change in average humidity

-13.5 %

PM2.5 levels surged by

-25.9 %

Heatwave changed by

+2.1 day(s)

Coldwave changed by

-4.6 day(s)

Wind speeds changed by

-0.6 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Saint Denis'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.

Saint Denis Weather Forecast 30 Days (September - October 2025)
Saint Denis, Ile De France, France

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 16, Sep.
partly cloudyPartly Cloudy
Temperature Icon19°/13°
Humidity Icon61%
Wind Icon21km/h
Wed. 17, Sep.
partly cloudyPartly Cloudy
Temperature Icon25°/15°
Humidity Icon50%
Wind Icon16km/h
Thu. 18, Sep.
sunnySunny
Temperature Icon29°/15°
Humidity Icon38%
Wind Icon8km/h
Fri. 19, Sep.
sunnySunny
Temperature Icon32°/17°
Humidity Icon38%
Wind Icon15km/h
Sat. 20, Sep.
moderate rainModerate rain
Temperature Icon21°/16°
Humidity Icon75%
Wind Icon17km/h
Sun. 21, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon20°/13°
Humidity Icon61%
Wind Icon20km/h
Mon. 22, Sep.
cloudyCloudy
Temperature Icon18°/11°
Humidity Icon54%
Wind Icon11km/h
Tue. 23, Sep.
partly cloudyPartly Cloudy
Temperature Icon17°/11°
Humidity Icon57%
Wind Icon16km/h
Wed. 24, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon16°/9°
Humidity Icon66%
Wind Icon20km/h
Thu. 25, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon18°/10°
Humidity Icon68%
Wind Icon14km/h
Fri. 26, Sep.
partly cloudyPartly Cloudy
Temperature Icon17°/11°
Humidity Icon63%
Wind Icon13km/h
Sat. 27, Sep.
partly cloudyPartly Cloudy
Temperature Icon18°/11°
Humidity Icon55%
Wind Icon9km/h
Sun. 28, Sep.
overcastOvercast
Temperature Icon18°/12°
Humidity Icon45%
Wind Icon10km/h
Mon. 29, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/12°
Humidity Icon69%
Wind Icon17km/h
Tue. 30, Sep.
moderate rain at timesModerate rain at times
Temperature Icon20°/11°
Humidity Icon67%
Wind Icon13km/h
Wed. 1, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/12°
Humidity Icon69%
Wind Icon18km/h
Thu. 2, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/12°
Humidity Icon74%
Wind Icon18km/h
Fri. 3, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/11°
Humidity Icon71%
Wind Icon17km/h
Sat. 4, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/12°
Humidity Icon73%
Wind Icon17km/h
Sun. 5, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon18°/12°
Humidity Icon76%
Wind Icon20km/h
Mon. 6, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon18°/11°
Humidity Icon74%
Wind Icon18km/h
Tue. 7, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon18°/11°
Humidity Icon73%
Wind Icon17km/h
Wed. 8, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon18°/11°
Humidity Icon76%
Wind Icon14km/h
Thu. 9, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/11°
Humidity Icon74%
Wind Icon14km/h
Fri. 10, Oct.
moderate rain at timesModerate rain at times
Temperature Icon18°/11°
Humidity Icon72%
Wind Icon16km/h
Sat. 11, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon18°/11°
Humidity Icon73%
Wind Icon17km/h
Sun. 12, Oct.
moderate rain at timesModerate rain at times
Temperature Icon17°/10°
Humidity Icon73%
Wind Icon17km/h
Mon. 13, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon17°/10°
Humidity Icon74%
Wind Icon19km/h
Tue. 14, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/9°
Humidity Icon75%
Wind Icon16km/h
Wed. 15, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon16°/9°
Humidity Icon73%
Wind Icon16km/h
Thu. 16, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon76%
Wind Icon17km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 19, Sep.

31.8°C

Low will be onTue. 14, Oct.

8.8°C

HumidityHumidity

High will be onSun. 5, Oct.

76%

Low will be onThu. 18, Sep.

38%

Wind SpeedWind Speed

High will be onTue. 16, Sep.

21.2km/h

Low will be onThu. 18, Sep.

8.3km/h

PrecipitationPrecipitation

High will be onSat. 20, Sep.

5.6mm

Low will be onFri. 26, Sep.

0.02mm

Ultraviolet IndexUV

High will be onSun. 21, Sep.

4

Low will be onSat. 20, Sep.

0.1

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