Lorient, Bretagne, France Climate Change Severity

38
Moderate
The current climate change severity in Lorient is Moderate, with a -13.2% 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 Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Lorient 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), Lorient temperature has changed by around +5.03%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
3327
-18.1%
cloudyCloudy
5127
-47.05%
rainyRainy
105105
0%
snowySnowy
00
0%
mistyMisty
05
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

+0.5 °C

Variation in annual rainfall

+20.9 %

Change in average humidity

-2.7 %

PM2.5 levels surged by

-24.9 %

Heatwave changed by

+0.5 day(s)

Coldwave changed by

-0.8 day(s)

Wind speeds changed by

-0.1 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 Jul.

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

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sat. 9, Aug.
sunnySunny
Temperature Icon29°/12°
Humidity Icon59%
Wind Icon26km/h
Sun. 10, Aug.
sunnySunny
Temperature Icon31°/12°
Humidity Icon54%
Wind Icon29km/h
Mon. 11, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon34°/19°
Humidity Icon44%
Wind Icon30km/h
Tue. 12, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon24°/17°
Humidity Icon76%
Wind Icon21km/h
Wed. 13, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon24°/16°
Humidity Icon81%
Wind Icon23km/h
Thu. 14, Aug.
mistMist
Temperature Icon22°/15°
Humidity Icon81%
Wind Icon25km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon22°/15°
Humidity Icon75%
Wind Icon24km/h
Sat. 16, Aug.
partly cloudyPartly Cloudy
Temperature Icon23°/15°
Humidity Icon74%
Wind Icon26km/h
Sun. 17, Aug.
partly cloudyPartly Cloudy
Temperature Icon23°/12°
Humidity Icon68%
Wind Icon27km/h
Mon. 18, Aug.
partly cloudyPartly Cloudy
Temperature Icon24°/10°
Humidity Icon63%
Wind Icon29km/h
Tue. 19, Aug.
sunnySunny
Temperature Icon24°/12°
Humidity Icon65%
Wind Icon24km/h
Wed. 20, Aug.
sunnySunny
Temperature Icon26°/11°
Humidity Icon59%
Wind Icon18km/h
Thu. 21, Aug.
sunnySunny
Temperature Icon27°/14°
Humidity Icon43%
Wind Icon17km/h
Fri. 22, Aug.
sunnySunny
Temperature Icon25°/15°
Humidity Icon42%
Wind Icon23km/h
Sat. 23, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/15°
Humidity Icon76%
Wind Icon21km/h
Sun. 24, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/14°
Humidity Icon76%
Wind Icon23km/h
Mon. 25, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/15°
Humidity Icon79%
Wind Icon25km/h
Tue. 26, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/15°
Humidity Icon80%
Wind Icon25km/h
Wed. 27, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/14°
Humidity Icon81%
Wind Icon23km/h
Thu. 28, Aug.
moderate rain at timesModerate rain at times
Temperature Icon21°/14°
Humidity Icon75%
Wind Icon22km/h
Fri. 29, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon21°/13°
Humidity Icon73%
Wind Icon22km/h
Sat. 30, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon21°/13°
Humidity Icon75%
Wind Icon19km/h
Sun. 31, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon21°/13°
Humidity Icon76%
Wind Icon21km/h
Mon. 1, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon21°/13°
Humidity Icon75%
Wind Icon19km/h
Tue. 2, Sep.
moderate rain at timesModerate rain at times
Temperature Icon21°/13°
Humidity Icon75%
Wind Icon19km/h
Wed. 3, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon22°/14°
Humidity Icon76%
Wind Icon22km/h
Thu. 4, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon22°/15°
Humidity Icon77%
Wind Icon20km/h
Fri. 5, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon21°/14°
Humidity Icon78%
Wind Icon20km/h
Sat. 6, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/14°
Humidity Icon77%
Wind Icon22km/h
Sun. 7, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon21°/14°
Humidity Icon73%
Wind Icon20km/h
Mon. 8, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/14°
Humidity Icon77%
Wind Icon21km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 11, Aug.

34.2°C

Low will be onMon. 18, Aug.

9.8°C

HumidityHumidity

High will be onWed. 13, Aug.

81%

Low will be onFri. 22, Aug.

42%

Wind SpeedWind Speed

High will be onMon. 11, Aug.

29.9km/h

Low will be onThu. 21, Aug.

17.3km/h

PrecipitationPrecipitation

High will be onMon. 25, Aug.

3.7mm

Low will be onFri. 5, Sep.

0.2mm

Ultraviolet IndexUV

High will be onThu. 21, Aug.

6

Low will be onTue. 12, Aug.

1.6

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