Castlebar, Mayo, Ireland Climate Change Severity

33
Moderate
The current climate change severity in Castlebar 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


Castlebar Weather Condition Changes (Historic Vs 2025)

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

Over the past 15 year(s), Castlebar temperature has changed by around +5.8%, 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
912
33.3%

cloudyCloudy
3523
-34.2%

rainyRainy
188143
-23.9%

snowySnowy
01
100%

mistyMisty
04
100%

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

Climate Change Indicators:

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

Temperature change of

+0.5 °C


Variation in annual rainfall

-7.7 %


Change in average humidity

-2.1 %


PM2.5 levels surged by

-21.3 %


Heatwave changed by

+0.2 day(s)


Coldwave changed by

-0.8 day(s)


Wind speeds changed by

-0.001 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.

Castlebar Weather Forecast 30 Days (October - November 2025)
Castlebar, Mayo, Ireland


Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 3, Oct.
moderate rainModerate rain

Temperature Icon17°/9°

Humidity Icon88%

Wind Icon64km/h
Sat. 4, Oct.
moderate rainModerate rain

Temperature Icon13°/8°

Humidity Icon81%

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

Temperature Icon14°/10°

Humidity Icon82%

Wind Icon30km/h
Mon. 6, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon16°/12°

Humidity Icon85%

Wind Icon33km/h
Tue. 7, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/10°

Humidity Icon84%

Wind Icon27km/h
Wed. 8, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon14°/10°

Humidity Icon82%

Wind Icon13km/h
Thu. 9, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon15°/11°

Humidity Icon90%

Wind Icon11km/h
Fri. 10, Oct.
partly cloudyPartly Cloudy

Temperature Icon16°/8°

Humidity Icon82%

Wind Icon6km/h
Sat. 11, Oct.
partly cloudyPartly Cloudy

Temperature Icon15°/7°

Humidity Icon80%

Wind Icon8km/h
Sun. 12, Oct.
cloudyCloudy

Temperature Icon12°/10°

Humidity Icon80%

Wind Icon15km/h
Mon. 13, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon12°/6°

Humidity Icon76%

Wind Icon18km/h
Tue. 14, Oct.
overcastOvercast

Temperature Icon11°/5°

Humidity Icon72%

Wind Icon14km/h
Wed. 15, Oct.
cloudyCloudy

Temperature Icon12°/6°

Humidity Icon72%

Wind Icon6km/h
Thu. 16, Oct.
partly cloudyPartly Cloudy

Temperature Icon12°/9°

Humidity Icon80%

Wind Icon14km/h
Fri. 17, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/7°

Humidity Icon87%

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

Temperature Icon13°/8°

Humidity Icon89%

Wind Icon23km/h
Sun. 19, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/8°

Humidity Icon89%

Wind Icon25km/h
Mon. 20, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/8°

Humidity Icon88%

Wind Icon26km/h
Tue. 21, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/8°

Humidity Icon87%

Wind Icon25km/h
Wed. 22, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/8°

Humidity Icon86%

Wind Icon22km/h
Thu. 23, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/8°

Humidity Icon90%

Wind Icon24km/h
Fri. 24, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/8°

Humidity Icon88%

Wind Icon23km/h
Sat. 25, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/7°

Humidity Icon87%

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

Temperature Icon12°/8°

Humidity Icon87%

Wind Icon27km/h
Mon. 27, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/8°

Humidity Icon88%

Wind Icon24km/h
Tue. 28, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/8°

Humidity Icon89%

Wind Icon23km/h
Wed. 29, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/7°

Humidity Icon88%

Wind Icon24km/h
Thu. 30, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon13°/8°

Humidity Icon90%

Wind Icon23km/h
Fri. 31, Oct.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon12°/7°

Humidity Icon89%

Wind Icon24km/h
Sat. 1, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/6°

Humidity Icon86%

Wind Icon25km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon11°/6°

Humidity Icon87%

Wind Icon25km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 3, Oct.

16.6°C


Low will be onTue. 14, Oct.

4.8°C

HumidityHumidity

High will be onThu. 9, Oct.

90%


Low will be onTue. 14, Oct.

72%

Wind SpeedWind Speed

High will be onFri. 3, Oct.

64.1km/h


Low will be onFri. 10, Oct.

5.8km/h

PrecipitationPrecipitation

High will be onFri. 3, Oct.

19.2mm


Low will be onSun. 12, Oct.

0.01mm

Ultraviolet IndexUV

High will be onFri. 10, Oct.

4


Low will be onFri. 3, Oct.

0.1