St Peter Port, Saint Saviour, Jersey Climate Change Severity

38
Moderate
The current climate change severity in St Peter Port is Moderate, with a 13.8% 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 Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


St Peter Port Weather Condition Changes (Historic Vs 2025)

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

Over the past 15 year(s), St Peter Port temperature has changed by around +2.2%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
4044
10%

cloudyCloudy
6543
-33.8%

rainyRainy
13398
-26.3%

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, St Peter Port 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, St Peter Port experienced significant changes:

Temperature change of

+0.2 °C


Variation in annual rainfall

-14.9 %


Change in average humidity

-0.3 %


PM2.5 levels surged by

-35.1 %


Heatwave changed by

-6.7 day(s)


Coldwave changed by

-6.3 day(s)


Wind speeds changed by

+1.3 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 Sep.

St Peter Port Weather Forecast 30 Days (October - November 2025)
St Peter Port, Saint Saviour, Jersey


Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Thu. 23, Oct.
moderate rainModerate rain

Temperature Icon13°/12°

Humidity Icon73%

Wind Icon77km/h
Fri. 24, Oct.
moderate rainModerate rain

Temperature Icon13°/12°

Humidity Icon67%

Wind Icon62km/h
Sat. 25, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon13°/12°

Humidity Icon66%

Wind Icon52km/h
Sun. 26, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon12°/12°

Humidity Icon64%

Wind Icon40km/h
Mon. 27, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon15°/13°

Humidity Icon84%

Wind Icon49km/h
Tue. 28, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon15°/14°

Humidity Icon78%

Wind Icon39km/h
Wed. 29, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/13°

Humidity Icon73%

Wind Icon32km/h
Thu. 30, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/13°

Humidity Icon81%

Wind Icon40km/h
Fri. 31, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon15°/13°

Humidity Icon76%

Wind Icon43km/h
Sat. 1, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon13°/13°

Humidity Icon72%

Wind Icon46km/h
Sun. 2, Nov.
moderate rainModerate rain

Temperature Icon13°/12°

Humidity Icon84%

Wind Icon69km/h
Mon. 3, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/13°

Humidity Icon82%

Wind Icon90km/h
Tue. 4, Nov.
heavy rainHeavy rain

Temperature Icon15°/13°

Humidity Icon92%

Wind Icon45km/h
Wed. 5, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/12°

Humidity Icon79%

Wind Icon63km/h
Thu. 6, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon14°/11°

Humidity Icon78%

Wind Icon38km/h
Fri. 7, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon14°/11°

Humidity Icon77%

Wind Icon39km/h
Sat. 8, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/11°

Humidity Icon77%

Wind Icon36km/h
Sun. 9, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/11°

Humidity Icon78%

Wind Icon37km/h
Mon. 10, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/11°

Humidity Icon79%

Wind Icon35km/h
Wed. 12, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon14°/11°

Humidity Icon80%

Wind Icon40km/h
Thu. 13, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon14°/12°

Humidity Icon78%

Wind Icon37km/h
Fri. 14, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon14°/11°

Humidity Icon76%

Wind Icon36km/h
Sat. 15, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/11°

Humidity Icon79%

Wind Icon33km/h
Sun. 16, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/10°

Humidity Icon80%

Wind Icon35km/h
Mon. 17, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/10°

Humidity Icon78%

Wind Icon36km/h
Tue. 18, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/10°

Humidity Icon76%

Wind Icon36km/h
Wed. 19, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/10°

Humidity Icon77%

Wind Icon39km/h
Thu. 20, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/9°

Humidity Icon76%

Wind Icon39km/h
Fri. 21, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/9°

Humidity Icon78%

Wind Icon42km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onTue. 4, Nov.

15.1°C


Low will be onThu. 20, Nov.

9.4°C

HumidityHumidity

High will be onTue. 4, Nov.

92%


Low will be onSun. 26, Oct.

64%

Wind SpeedWind Speed

High will be onMon. 3, Nov.

90.4km/h


Low will be onWed. 29, Oct.

31.7km/h

PrecipitationPrecipitation

High will be onTue. 4, Nov.

26mm


Low will be onWed. 29, Oct.

0.03mm

Ultraviolet IndexUV

High will be onTue. 28, Oct.

3


Low will be onThu. 23, Oct.

0.2