Brest, Bretagne, France Climate Change Severity

57
High
The current climate change severity in Brest is High, with a 36.1% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Sep. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Brest Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Brest temperature has changed by around +11.7%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Sep. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
3481
138.2%
cloudyCloudy
5218
-65.3%
rainyRainy
156104
-33.3%
snowySnowy
01
100%
mistyMisty
02
100%

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

Climate Change Indicators:

Over the past 16 years, Brest has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Brest experienced significant changes:

Temperature change of

+1.47 °C

Variation in annual rainfall

-7.21 %

Change in average humidity

-3.23 %

PM2.5 levels surged by

-12.27 %

Heatwave changed by

+23 Days

Coldwave changed by

-5 Days

Wind speeds changed by

+2.69 km/h

These indicators show that Brest is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

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

Brest Weather Forecast 30 Days (October - November 2026)
Brest, Bretagne, France

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 3, Oct.
overcastOvercast
Temperature Icon20°/13°
Humidity Icon72%
Wind Icon16.2km/h
Sun. 4, Oct.
sunnySunny
Temperature Icon19°/12°
Humidity Icon76%
Wind Icon16.6km/h
Mon. 5, Oct.
sunnySunny
Temperature Icon21°/11°
Humidity Icon66%
Wind Icon14.8km/h
Tue. 6, Oct.
partly cloudyPartly Cloudy
Temperature Icon20°/12°
Humidity Icon82%
Wind Icon15.5km/h
Wed. 7, Oct.
overcastOvercast
Temperature Icon16°/12°
Humidity Icon79%
Wind Icon27km/h
Thu. 8, Oct.
overcastOvercast
Temperature Icon16°/10°
Humidity Icon73%
Wind Icon18.4km/h
Fri. 9, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/13°
Humidity Icon85%
Wind Icon27km/h
Sat. 10, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/12°
Humidity Icon73%
Wind Icon21.6km/h
Sun. 11, Oct.
heavy rain at timesHeavy Rain
Temperature Icon17°/12°
Humidity Icon80%
Wind Icon25.2km/h
Mon. 12, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/11°
Humidity Icon79%
Wind Icon25.8km/h
Tue. 13, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/11°
Humidity Icon80%
Wind Icon24.3km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/11°
Humidity Icon79%
Wind Icon19.9km/h
Thu. 15, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/11°
Humidity Icon79%
Wind Icon23.3km/h
Fri. 16, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/11°
Humidity Icon80%
Wind Icon24.3km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/11°
Humidity Icon81%
Wind Icon23.7km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/12°
Humidity Icon82%
Wind Icon25.3km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/12°
Humidity Icon81%
Wind Icon28.6km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/11°
Humidity Icon82%
Wind Icon29.2km/h
Wed. 21, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon81%
Wind Icon27km/h
Thu. 22, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon80%
Wind Icon24.3km/h
Fri. 23, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon83%
Wind Icon28.4km/h
Sat. 24, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/12°
Humidity Icon85%
Wind Icon26.7km/h
Sun. 25, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon81%
Wind Icon24.5km/h
Mon. 26, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon83%
Wind Icon27.9km/h
Tue. 27, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon83%
Wind Icon29.5km/h
Wed. 28, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon82%
Wind Icon28.4km/h
Thu. 29, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon82%
Wind Icon28.2km/h
Fri. 30, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/11°
Humidity Icon83%
Wind Icon27.8km/h
Sat. 31, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/12°
Humidity Icon83%
Wind Icon29.2km/h
Sun. 1, Nov.
moderate or heavy rain showerRain Showers
Temperature Icon15°/11°
Humidity Icon81%
Wind Icon31km/h
Mon. 2, Nov.
moderate or heavy rain showerRain Showers
Temperature Icon15°/10°
Humidity Icon80%
Wind Icon32.8km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 5, Oct.

21°C

Low will be onThu. 8, Oct.

10°C

HumidityHumidity

High will be onFri. 9, Oct.

85%

Low will be onMon. 5, Oct.

66%

Wind SpeedWind Speed

High will be onMon. 2, Nov.

32.8km/h

Low will be onMon. 5, Oct.

14.8km/h

PrecipitationPrecipitation

High will be onSat. 24, Oct.

7.2mm

Low will be onThu. 8, Oct.

0.05mm

Ultraviolet IndexUV

High will be onWed. 7, Oct.

5

Low will be onSat. 3, Oct.

2.5

Our Blogs

See all blogs
Perth's Spring Warmth Peaks Then Pulls Back Hard

Perth's Spring Warmth Peaks Then Pulls Back Hard

AQI Newsroom1 Oct 2026
Mumbai's Monsoon Grip: Rain, Wind, and UV Swings Tracked

Mumbai's Monsoon Grip: Rain, Wind, and UV Swings Tracked

AQI Newsroom11 Sept 2026
New Delhi's August Heat Surge, Dust Storms, and September Reset

New Delhi's August Heat Surge, Dust Storms, and September Reset

AQI Newsroom11 Sept 2026
Gurgaon's August Heat Surge, Sandstorms, and September Cool-Off

Gurgaon's August Heat Surge, Sandstorms, and September Cool-Off

AQI Newsroom11 Sept 2026
Amritsar August Heat Surge: Rain Fades, Haze Holds Firm

Amritsar August Heat Surge: Rain Fades, Haze Holds Firm

AQI Newsroom2 Sept 2026
The Night a Wall of Dust Swallowed Phoenix: What 1,520 Air Quality Readings Reveal About Arizona's Air

The Night a Wall of Dust Swallowed Phoenix: What 1,520 Air Quality Readings Reveal About Arizona's Air

Gyane Haobijam24 Aug 2026
New Delhi's Brutal June-July Swing: From 45°C to Monsoon Lows

New Delhi's Brutal June-July Swing: From 45°C to Monsoon Lows

AQI Newsroom11 Aug 2026
London's July 2026 Heatwave: From 20°C to 34°C in Weeks

London's July 2026 Heatwave: From 20°C to 34°C in Weeks

AQI Newsroom11 Aug 2026
World Top 10 Hottest Cities Are All in India Again - May 2026

World Top 10 Hottest Cities Are All in India Again - May 2026

Gyane Haobijam4 Jun 2026
Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

Gyane Haobijam2 Jun 2026
What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

AQI Team27 May 2026
World Top Hottest Cities Belong to India - April 2026

World Top Hottest Cities Belong to India - April 2026

Gyane Haobijam28 Apr 2026
Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Gyane Haobijam27 Mar 2026
Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Gyane Haobijam17 Mar 2026
Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Gyane Haobijam14 Feb 2026
Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Navya12 Feb 2026
Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Gyane Haobijam2 Feb 2026