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Weather in Castleisland today: the honest forecast

Castleisland

Nippy. The kind of cold that gets in the gap at the back of your neck.

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5°C

Clear Clear sky

Feels like
5°C
Wind
4 km/h
Humidity
90%
Rainfall
0 mm

Sunrise 08:05 Sunset 18:40

Air quality Fair

Updated 23:53 on 17/10/2026. Don’t be expecting miracles.

Tomorrow in Castleisland

Sunday 18/10/2026

Grey as your man’s personality.

Clouds, high of 12°C, low of 2°C. 0 mm of rain, 0% chance. Wind up to 6 km/h.

The day after in Castleisland

Monday 19/10/2026

Cloud so thick the sun’s on a sabbatical.

Clouds, high of 11°C, low of 1°C. 0 mm of rain, 4% chance. Wind up to 12 km/h.

Yellow warning: the sky’s in a mood. Not a crisis, but the washing can stay in.

Yellow

Small Craft warning from Belfast Lough to Wicklow Head to Roche's Point

From 19/10/2026 07:00 until 19/10/2026 23:59

Northeasterly or cyclonic variable winds, veering southeasterly will reach force 6 at times.

Weather warnings: Met Éireann. Shown as issued. met.ie/warnings Northern Ireland: Met Office, metoffice.gov.uk.

Honest Weather’s verdicts for Castleisland, tomorrow

  • Washing9/10 for washingPerfect washing day. Do the lot, even the duvet.
  • Barbecue8/10 for barbecueFire it up. Just keep an eye on the sky.
  • A walk10/10 for a walkThe best walking weather you’ll get this week.

Verdicts by Honest Weather · honestweather.ie

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Next 24 hours in Castleisland

Sure it’ll be fine. Sure it won’t. Sure we’ll see.

In 3-hour steps.

  1. 01:00 5° 0% chance of rain
  2. 04:00 4° 0% chance of rain
  3. 07:00 3° 0% chance of rain
  4. 10:00 5° 0% chance of rain
  5. 13:00 12° 0% chance of rain
  6. 16:00 12° 0% chance of rain
  7. 19:00 8° 0% chance of rain
  8. 22:00 5° 0% chance of rain

The days ahead in Castleisland

  1. Sun 18/10 Clouds 12° / 2° 0 mm, 0% Sun’s hiding like it owes us money.
  2. Mon 19/10 Clouds 11° / 1° 0 mm, 4% Grey sky, grey mood, grey tea. At least the tea’s hot.
  3. Tue 20/10 Rain 11° / 5° 9.4 mm, 100% Rain so heavy the gutters are filin’ for a transfer.
  4. Wed 21/10 Rain 11° / 7° 6.5 mm, 100% Bucketin’ down. Don’t be goin’ out in that, ya eejit.
  5. Thu 22/10 Rain 11° / 6° 2.7 mm, 98% Puddles like lakes. Mind the lad in the Corolla.

About the weather in Castleisland

Castleisland is in County Kerry, in the south and south-west. Winters are mild thanks to the Gulf Stream, rain comes in off the Atlantic, and the weather can change quickly through the day.

Castleisland is in County Kerry, at about 52.23°N, 9.46°W. The closest places we cover are Tralee (17 km), Killarney (19 km), Abbeyfeale (21 km).

Across Ireland, spring is cool and bright with showers, summer highs are typically in the high teens with long evenings, autumn is the wettest and windiest stretch as the Atlantic fronts return, and winter is mild for the latitude with frost on clear nights. Rain can arrive in any month.

Quick answers for Castleisland

What is the weather in Castleisland right now?
It is 5°C in Castleisland with clear sky, feeling like 5°C, with wind at 4 km/h.
Will it rain in Castleisland tomorrow?
Rain is unlikely tomorrow in Castleisland (a 0% chance).
What will the temperature be in Castleisland tomorrow?
A high of 12°C and a low of 2°C, with wind around 6 km/h.
What time is sunset in Castleisland today?
Sunrise is at 08:05 and sunset at 18:40.

Weather nearby

Beaches, hills and venues nearby

All weather in County Kerry