Llangefni, Isle Of Anglesey, United Kingdom Climate Change Severity

33
Moderate
The current climate change severity in Llangefni is Moderate, with a 25.2% 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 Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Llangefni 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), Llangefni temperature has changed by around +2.1%, 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
2329
26.08%
cloudyCloudy
4637
-19.5%
rainyRainy
176115
-34.6%
snowySnowy
00
0%
mistyMisty
02
100%

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

Climate Change Indicators:

Over the past 15 years, Llangefni has experienced measurable improvements in key climate parameters, contributing to the current severity score of 33 (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

33/100

Moderate

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Llangefni experienced significant changes:

Temperature change of

+0.2 °C

Variation in annual rainfall

-12.2 %

Change in average humidity

-1.5 %

PM2.5 levels surged by

-20.5 %

Heatwave changed by

-5 day(s)

Coldwave changed by

-3.6 day(s)

Wind speeds changed by

-0.9 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.

Llangefni Weather Forecast 30 Days (October - November 2025)
Llangefni, Isle Of Anglesey, United Kingdom

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 19, Oct.
moderate rainModerate rain
Temperature Icon14°/11°
Humidity Icon85%
Wind Icon24km/h
Mon. 20, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/10°
Humidity Icon89%
Wind Icon13km/h
Tue. 21, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/11°
Humidity Icon88%
Wind Icon39km/h
Wed. 22, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/8°
Humidity Icon81%
Wind Icon21km/h
Thu. 23, Oct.
heavy rainHeavy rain
Temperature Icon10°/8°
Humidity Icon81%
Wind Icon59km/h
Fri. 24, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon11°/9°
Humidity Icon79%
Wind Icon43km/h
Sat. 25, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/6°
Humidity Icon77%
Wind Icon28km/h
Sun. 26, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon8°/5°
Humidity Icon74%
Wind Icon26km/h
Mon. 27, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/10°
Humidity Icon83%
Wind Icon32km/h
Tue. 28, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/11°
Humidity Icon78%
Wind Icon25km/h
Wed. 29, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/12°
Humidity Icon84%
Wind Icon26km/h
Thu. 30, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/11°
Humidity Icon83%
Wind Icon46km/h
Fri. 31, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/14°
Humidity Icon89%
Wind Icon48km/h
Sat. 1, Nov.
sunnySunny
Temperature Icon16°/11°
Humidity Icon74%
Wind Icon40km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon80%
Wind Icon34km/h
Mon. 3, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon80%
Wind Icon28km/h
Tue. 4, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/8°
Humidity Icon82%
Wind Icon25km/h
Wed. 5, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/9°
Humidity Icon80%
Wind Icon25km/h
Thu. 6, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon81%
Wind Icon28km/h
Fri. 7, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon79%
Wind Icon31km/h
Sat. 8, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/8°
Humidity Icon80%
Wind Icon31km/h
Sun. 9, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon81%
Wind Icon31km/h
Mon. 10, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon81%
Wind Icon29km/h
Wed. 12, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon81%
Wind Icon37km/h
Thu. 13, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon80%
Wind Icon34km/h
Fri. 14, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon83%
Wind Icon34km/h
Sat. 15, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon83%
Wind Icon27km/h
Sun. 16, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/8°
Humidity Icon81%
Wind Icon28km/h
Mon. 17, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/8°
Humidity Icon80%
Wind Icon33km/h
Tue. 18, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon81%
Wind Icon35km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 1, Nov.

16.1°C

Low will be onSun. 26, Oct.

5.3°C

HumidityHumidity

High will be onMon. 20, Oct.

89%

Low will be onSun. 26, Oct.

74%

Wind SpeedWind Speed

High will be onThu. 23, Oct.

58.7km/h

Low will be onMon. 20, Oct.

13.3km/h

PrecipitationPrecipitation

High will be onThu. 23, Oct.

29.5mm

Low will be onTue. 28, Oct.

0.1mm

Ultraviolet IndexUV

High will be onSat. 1, Nov.

4

Low will be onMon. 20, Oct.

0.1

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