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Forecast confidence: High · models disagree by 2°C

Castletroy weather

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Light drizzle,rain likely tomorrow

Met Office, the European and the American model agree on a high near 19° in Castletroy today. Tomorrow: light drizzle, around 18°, with a 82% chance of rain.

19°11°
18°15°
15°8°
13°6°
15°6°
15°10°
Todaymodels agreeTomorrowsplit ±2°Tuesdaymodels agreeWednesdaymodels agreeThursdaymodels agreeFridaymodels agree
Met OfficeUKMO model
18°
Overcast
Feels 17° · Wind 17 km/h · Humidity 82%
EuropeanECMWF
17°
Overcast
Feels 16° · Wind 18 km/h · Humidity 85%
AmericanNOAA GFS
18°
Overcast
Feels 17° · Wind 15 km/h · Humidity 79%

Latest for Castletroy: Met Office (UKMO model): 18° Overcast · European (ECMWF): 17° Overcast · American (NOAA GFS): 18° Overcast.

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Castletroy weather in numbers

from 30 years of measured normals

Castletroy swings 16°C across the year, from 19°C highs in August to 3°C lows in January, and October is usually the wettest month in a year that brings about 1140 mm of precipitation.

Warmest month
August
19°C average high
Coldest month
January
3°C average low
Wettest month
October
1140 mm a year
Below freezing
Never
overnight lows stay above 0°C
Comfortable
4 months
June, July, August and September
Residents
15,000
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The weather map: all three models at once

Met Office, European, American side by side around Castletroy and nearby towns.Live rain radar →
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Castletroy hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Castletroy 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Light drizzle
19° 11°
models agree
Tomorrow
Light drizzle
18° 15°
±2°
Tue
Heavy drizzle
15° 8°
models agree
Wed
Light drizzle
13° 6°
models agree
Thu
Drizzle
15° 6°
models agree
Fri
Light rain
15° 10°
models agree
Sat
Light drizzle
13° 9°
models agree
Sun
Light drizzle
15° 9°
models agree
Mon
Light drizzle
15° 9°
models agree
Tue
Light drizzle
16° 11°
±4°
Wed
Light drizzle
15° 10°
±5°
Thu
Cloudy
12° 8°
models agree
Fri
Light drizzle
11° 8°
models agree
Sat
Cloudy
13° 9°
±2°

Castletroy, Co. Limerick is at its warmest in Aug (average highs near 19°C) and coldest in Jan (lows around 3°C), with roughly 1140 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Castletroy right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in Ireland before you trust any single number.

Castletroy climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
8°
3°
Feb
8°
3°
Mar
9°
4°
Apr
12°
5°
May
15°
7°
Jun
18°
10°
Jul
18°
12°
Aug
19°
12°
Sep
17°
10°
Oct
13°
8°
Nov
10°
5°
Dec
8°
4°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Castletroy has changed since 1995

Castletroy sits in the same roughly 50 km square of NASA's reanalysis as Limerick. That square shows no clear change in temperature between 1995-2004 and 2015-2024. See the full 30-year picture on the Limerick page.

Which forecast is most accurate in Castletroy?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
93
/100rank #1
95±0.3°C97±1.4 km/h8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
78
/100rank #2
86±0.8°C95±2.3 km/h5877% hitNOAA / NCEP (United States)College Park, Maryland, USA
Met Office logo
Met Office
77
/100rank #3
87±0.7°C95±2.6 km/h5374% hitMet Office (United Kingdom)Exeter, United Kingdom

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 60 cities. Lower error means a higher score. See which forecast model is most accurate in Ireland, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in Ireland? Give each 1 to 5 stars.

Met OfficeUKMO model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±2°18° to 20°±57%10% to 67% chance
Tomorrow±2°17° to 19°±27%55% to 82% chance
Tuemodels agree15° to 15°±56%44% to 100% chance
Wed±1°13° to 14°±32%35% to 67% chance
Thu±1°14° to 15°±49%51% to 100% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Castletroy

today, local time
Sunrise
07:40
Sunset
19:04
Daylight
11h 24m

Common questions

What's the weather in Castletroy today?
Sunday 4 October: Met Office, the European and the American model agree on a high near 19° in Castletroy today. Tomorrow: light drizzle, around 18°, with a 82% chance of rain. The forecast on this page refreshes live.
Will it rain in Castletroy today or tomorrow?
Rain is likely in Castletroy on Monday 5 October: every model gives at least 55% (Met Office 67%, European 82%, American 55%). On Sunday 4 October the highest chance of rain from any model is 67%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Castletroy?
Over the last 30 days, the European model has been the most accurate for Castletroy (CheckWeather Score 93/100), ahead of the American at 78. We grade every model against the recorded weather. See the IE accuracy scoreboard for the full method.
What is the warmest month in Castletroy?
August is typically the warmest month in Castletroy, with average highs around 19°C.
How cold does Castletroy get?
The coldest month in Castletroy is January, when overnight lows average about 3°C.
How much rain does Castletroy get?
Castletroy sees roughly 1140 mm of precipitation a year, with October usually the wettest month.

Nearby

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