Saint Ouen, Saint Helier, Jersey Climate Change Severity

43
High
The current climate change severity in Saint Ouen is High, with a 10.1% 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


Saint Ouen Weather Condition Changes (Historic Vs 2025)

0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Saint Ouen temperature has changed by around +2.2%, 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
4550
11.1%

cloudyCloudy
7140
-43.6%

rainyRainy
157119
-24.2%

snowySnowy
00
0%

mistyMisty
01
100%

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

Climate Change Indicators:

Over the past 15 years, Saint Ouen has experienced measurable shifts in key climate parameters, contributing to the current severity score of 43 (within the High severity category). While the score remains High, certain factors have improved over time. Here’s a breakdown of the specific changes observed:

Severity Score

43/100


High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Saint Ouen experienced significant changes:

Temperature change of

+0.2 °C


Variation in annual rainfall

-13.7 %


Change in average humidity

-0.2 %


PM2.5 levels surged by

+66.9 %


Heatwave changed by

-4.8 day(s)


Coldwave changed by

-6.6 day(s)


Wind speeds changed by

-0.3 km/h


These indicators show improvement in key parametes of climate, but Saint Ouen remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

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

Saint Ouen Weather Forecast 30 Days (November - December 2025)
Saint Ouen, Saint Helier, Jersey


Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 4, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon15°/13°

Humidity Icon85%

Wind Icon47km/h
Wed. 5, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon17°/15°

Humidity Icon79%

Wind Icon47km/h
Thu. 6, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon15°/14°

Humidity Icon85%

Wind Icon45km/h
Fri. 7, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/13°

Humidity Icon85%

Wind Icon37km/h
Sat. 8, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/12°

Humidity Icon81%

Wind Icon44km/h
Sun. 9, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/13°

Humidity Icon80%

Wind Icon38km/h
Mon. 10, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon13°/13°

Humidity Icon76%

Wind Icon40km/h
Tue. 11, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon13°/13°

Humidity Icon73%

Wind Icon35km/h
Wed. 12, Nov.
partly cloudyPartly Cloudy

Temperature Icon13°/11°

Humidity Icon79%

Wind Icon36km/h
Thu. 13, Nov.
moderate rainModerate rain

Temperature Icon12°/11°

Humidity Icon86%

Wind Icon35km/h
Fri. 14, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon13°/12°

Humidity Icon94%

Wind Icon49km/h
Sat. 15, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon12°/11°

Humidity Icon87%

Wind Icon57km/h
Sun. 16, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon13°/12°

Humidity Icon81%

Wind Icon22km/h
Mon. 17, Nov.
moderate rainModerate rain

Temperature Icon12°/11°

Humidity Icon84%

Wind Icon46km/h
Tue. 18, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/11°

Humidity Icon76%

Wind Icon41km/h
Wed. 19, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/10°

Humidity Icon77%

Wind Icon45km/h
Thu. 20, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/10°

Humidity Icon76%

Wind Icon44km/h
Fri. 21, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/10°

Humidity Icon77%

Wind Icon46km/h
Sun. 23, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/10°

Humidity Icon79%

Wind Icon43km/h
Mon. 24, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/10°

Humidity Icon79%

Wind Icon43km/h
Tue. 25, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/10°

Humidity Icon75%

Wind Icon44km/h
Wed. 26, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/10°

Humidity Icon76%

Wind Icon40km/h
Thu. 27, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/9°

Humidity Icon80%

Wind Icon48km/h
Fri. 28, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/9°

Humidity Icon75%

Wind Icon44km/h
Sat. 29, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/9°

Humidity Icon72%

Wind Icon41km/h
Sun. 30, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/9°

Humidity Icon77%

Wind Icon41km/h
Mon. 1, Dec.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/9°

Humidity Icon77%

Wind Icon40km/h
Tue. 2, Dec.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon10°/8°

Humidity Icon74%

Wind Icon41km/h
Wed. 3, Dec.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/8°

Humidity Icon78%

Wind Icon44km/h
Thu. 4, Dec.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/8°

Humidity Icon75%

Wind Icon43km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 5, Nov.

16.8°C


Low will be onThu. 4, Dec.

7.7°C

HumidityHumidity

High will be onFri. 14, Nov.

94%


Low will be onSat. 29, Nov.

72%

Wind SpeedWind Speed

High will be onSat. 15, Nov.

57.2km/h


Low will be onSun. 16, Nov.

21.6km/h

PrecipitationPrecipitation

High will be onThu. 27, Nov.

8mm


Low will be onTue. 11, Nov.

0.1mm

Ultraviolet IndexUV

High will be onWed. 12, Nov.

4


Low will be onTue. 4, Nov.

0.1