Caerdydd, Cardiff, United Kingdom Climate Change Severity

38
Moderate
The current climate change severity in Caerdydd is Moderate, with a 18.5% 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
°C (c)

Caerdydd 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), Caerdydd temperature has changed by around +3.8%, 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
2434
41.6%
cloudyCloudy
6239
-37.09%
rainyRainy
156105
-32.6%
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, Caerdydd 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, Caerdydd experienced significant changes:

Temperature change of

+0.4 °C

Variation in annual rainfall

-9.7 %

Change in average humidity

-2.8 %

PM2.5 levels surged by

-27.4 %

Heatwave changed by

-4.4 day(s)

Coldwave changed by

-6.06 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 Sep.

Caerdydd Weather Forecast 30 Days (October - November 2025)
Caerdydd, Cardiff, United Kingdom

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 19, Oct.
heavy rainHeavy rain
Temperature Icon15°/12°
Humidity Icon90%
Wind Icon36km/h
Mon. 20, Oct.
heavy rainHeavy rain
Temperature Icon14°/11°
Humidity Icon91%
Wind Icon30km/h
Tue. 21, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/10°
Humidity Icon88%
Wind Icon27km/h
Wed. 22, Oct.
moderate rainModerate rain
Temperature Icon13°/10°
Humidity Icon89%
Wind Icon34km/h
Thu. 23, Oct.
moderate rainModerate rain
Temperature Icon16°/11°
Humidity Icon89%
Wind Icon55km/h
Fri. 24, Oct.
moderate rainModerate rain
Temperature Icon12°/10°
Humidity Icon82%
Wind Icon62km/h
Sat. 25, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/9°
Humidity Icon81%
Wind Icon38km/h
Sun. 26, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/6°
Humidity Icon77%
Wind Icon27km/h
Mon. 27, Oct.
partly cloudyPartly Cloudy
Temperature Icon11°/5°
Humidity Icon73%
Wind Icon15km/h
Tue. 28, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/9°
Humidity Icon81%
Wind Icon27km/h
Wed. 29, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon14°/11°
Humidity Icon85%
Wind Icon41km/h
Thu. 30, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/10°
Humidity Icon86%
Wind Icon25km/h
Fri. 31, Oct.
partly cloudyPartly Cloudy
Temperature Icon11°/8°
Humidity Icon79%
Wind Icon31km/h
Sat. 1, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon14°/8°
Humidity Icon86%
Wind Icon35km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon13°/8°
Humidity Icon82%
Wind Icon30km/h
Mon. 3, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon83%
Wind Icon26km/h
Tue. 4, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon84%
Wind Icon23km/h
Wed. 5, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/7°
Humidity Icon84%
Wind Icon24km/h
Thu. 6, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/7°
Humidity Icon85%
Wind Icon27km/h
Fri. 7, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/7°
Humidity Icon84%
Wind Icon28km/h
Sat. 8, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/7°
Humidity Icon86%
Wind Icon26km/h
Sun. 9, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon87%
Wind Icon28km/h
Mon. 10, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon85%
Wind Icon25km/h
Wed. 12, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon85%
Wind Icon30km/h
Thu. 13, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon13°/8°
Humidity Icon83%
Wind Icon30km/h
Fri. 14, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon86%
Wind Icon29km/h
Sat. 15, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/8°
Humidity Icon87%
Wind Icon23km/h
Sun. 16, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon88%
Wind Icon26km/h
Mon. 17, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon84%
Wind Icon27km/h
Tue. 18, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/7°
Humidity Icon85%
Wind Icon31km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 23, Oct.

15.9°C

Low will be onMon. 27, Oct.

4.7°C

HumidityHumidity

High will be onMon. 20, Oct.

91%

Low will be onMon. 27, Oct.

73%

Wind SpeedWind Speed

High will be onFri. 24, Oct.

61.9km/h

Low will be onMon. 27, Oct.

15.1km/h

PrecipitationPrecipitation

High will be onSun. 19, Oct.

22.9mm

Low will be onMon. 27, Oct.

0.03mm

Ultraviolet IndexUV

High will be onWed. 22, Oct.

3

Low will be onSun. 19, Oct.

0.1

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