Lorient, Bretagne, France Climate Change Severity

38
Moderate
The current climate change severity in Lorient is Moderate, with a 12.3% 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 Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Lorient Weather Condition Changes (Historic Vs 2025)

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

Over the past 15 year(s), Lorient temperature has changed by around +6.02%, 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
4436
-18.1%

cloudyCloudy
6834
-50%

rainyRainy
133112
-15.7%

snowySnowy
00
0%

mistyMisty
06
100%

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

Climate Change Indicators:

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

Temperature change of

+0.7 °C


Variation in annual rainfall

+15.4 %


Change in average humidity

-4.2 %


PM2.5 levels surged by

-24.2 %


Heatwave changed by

+3.5 day(s)


Coldwave changed by

-0.8 day(s)


Wind speeds changed by

+0.3 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 Aug.

Lorient Weather Forecast 30 Days (September - October 2025)
Lorient, Bretagne, France


Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 30, Sep.
sunnySunny

Temperature Icon20°/10°

Humidity Icon76%

Wind Icon14km/h
Wed. 1, Oct.
sunnySunny

Temperature Icon20°/11°

Humidity Icon71%

Wind Icon13km/h
Thu. 2, Oct.
partly cloudyPartly Cloudy

Temperature Icon19°/11°

Humidity Icon74%

Wind Icon21km/h
Fri. 3, Oct.
moderate rainModerate rain

Temperature Icon18°/15°

Humidity Icon92%

Wind Icon49km/h
Sat. 4, Oct.
moderate rainModerate rain

Temperature Icon15°/12°

Humidity Icon68%

Wind Icon48km/h
Sun. 5, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon16°/10°

Humidity Icon67%

Wind Icon38km/h
Mon. 6, Oct.
cloudyCloudy

Temperature Icon17°/10°

Humidity Icon81%

Wind Icon20km/h
Tue. 7, Oct.
partly cloudyPartly Cloudy

Temperature Icon18°/13°

Humidity Icon81%

Wind Icon10km/h
Wed. 8, Oct.
partly cloudyPartly Cloudy

Temperature Icon21°/13°

Humidity Icon79%

Wind Icon14km/h
Thu. 9, Oct.
cloudyCloudy

Temperature Icon19°/13°

Humidity Icon80%

Wind Icon13km/h
Fri. 10, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon18°/9°

Humidity Icon74%

Wind Icon22km/h
Sat. 11, Oct.
sunnySunny

Temperature Icon18°/8°

Humidity Icon79%

Wind Icon14km/h
Sun. 12, Oct.
sunnySunny

Temperature Icon21°/9°

Humidity Icon78%

Wind Icon20km/h
Mon. 13, Oct.
sunnySunny

Temperature Icon21°/11°

Humidity Icon72%

Wind Icon27km/h
Tue. 14, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/10°

Humidity Icon79%

Wind Icon21km/h
Wed. 15, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon79%

Wind Icon25km/h
Thu. 16, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon80%

Wind Icon26km/h
Fri. 17, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon81%

Wind Icon24km/h
Sat. 18, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon17°/12°

Humidity Icon82%

Wind Icon25km/h
Sun. 19, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon82%

Wind Icon27km/h
Mon. 20, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon82%

Wind Icon29km/h
Tue. 21, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon15°/11°

Humidity Icon80%

Wind Icon30km/h
Wed. 22, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon80%

Wind Icon23km/h
Thu. 23, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon84%

Wind Icon28km/h
Fri. 24, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon17°/12°

Humidity Icon86%

Wind Icon28km/h
Sat. 25, Oct.
heavy rain at timesHeavy rain at times

Temperature Icon16°/11°

Humidity Icon81%

Wind Icon24km/h
Sun. 26, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon83%

Wind Icon26km/h
Mon. 27, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon15°/11°

Humidity Icon83%

Wind Icon28km/h
Tue. 28, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon15°/11°

Humidity Icon83%

Wind Icon28km/h
Wed. 29, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon15°/11°

Humidity Icon82%

Wind Icon27km/h
Thu. 30, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon16°/11°

Humidity Icon83%

Wind Icon24km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 13, Oct.

20.9°C


Low will be onSat. 11, Oct.

8.4°C

HumidityHumidity

High will be onFri. 3, Oct.

92%


Low will be onSun. 5, Oct.

67%

Wind SpeedWind Speed

High will be onFri. 3, Oct.

49km/h


Low will be onTue. 7, Oct.

9.7km/h

PrecipitationPrecipitation

High will be onFri. 3, Oct.

15.6mm


Low will be onSun. 5, Oct.

0.06mm

Ultraviolet IndexUV

High will be onTue. 7, Oct.

5


Low will be onFri. 3, Oct.

0.3