Climate guide for Killarney, Ireland

Killarney in September

Weather, crowds & best time to visit

How to read the score (0–10)
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September · Ireland

Best time to visit Killarney in SeptemberWeather, crowds & prices

September score

7.9/10

Ranked #5 of 12 months

Full year for Killarney
Avg temp
22°C
Rainfall
90 mm
Humidity
54%
Sunny days
19
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

September in Killarney scores 7.9/10 for nature and wildlife travel - an above-average month (#5 of 12). Expect around 22°C, 90 mm of rain, and roughly 19 sunny days this month.

Scenic hub on the Ring of Kerry with mountain lakes, Muckross House, and national park.

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Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Killarney in September?
In September, Killarney averages 22°C, 90 mm of rain, and about 19 sunny days. Its climate-comfort score is 7.9/10.
Is September a good time to visit Killarney?
September earns a 7.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Killarney in September?
Expect about 90 mm of rain in September. Average humidity is 54% and there are about 19 sunny days.

Curated in Killarney

Tickets & experiences

Things to do in Killarney

Killarney, Ireland. Live activities and tours from GetYourGuide, matched to this destination.