Kilkenny Weather in May
During May, Kilkenny experiences moderate daytime temperatures of 16°C (61°F) and cooler nights around 7°C (45°F). Expect quite a bit of rainfall. Around 71 mm (2.8 in) is typical.
Rainfall in Kilkenny in May
Historically, approximately 17 days this month are expected to have rain, averaging 71 mm (2.8 in). This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.
Temperature in Kilkenny in May
Expect highs of 16°C (61°F) in Kilkenny in May, with nights dropping to around 7°C (45°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Kilkenny Temperature in May
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Kilkenny Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kilkenny - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kilkenny typically stay consistent throughout May, with daily highs averaging around 16°C (61°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
Average temperatures in May
Historical weather records for Kilkenny in May
Browse day-by-day weather records for Kilkenny spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kilkenny historical weather extremes in May
Our historical data for Kilkenny spans 1976 to 2026, revealing these weather extremes.
- The warmest day in May was on May 26, 2026, with a maximum of 27°C (81°F).
- The lowest daytime temperature in May was 7°C (45°F), recorded on May 14, 1993.
- Nighttime temperatures dropped to -2°C (28°F) on May 4, 1979, marking the coldest May night on record.
Best Places in Ireland in May
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Kilkenny in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days.
What To Do in Kilkenny in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports9/10
Kilkenny 3-Day Forecast
See the full Kilkenny climate overview or explore weather in Ireland.
Popular in May
Where to go in May - average daytime high across popular destinations.
Galway
16°C (61°F) Kilkenny
16°C (61°F) Westport16°C (61°F) Kenmare
16°C (61°F) Killarney16°C (61°F) Dublin16°C (61°F) Cork
15°C (59°F) Doolin15°C (59°F) 
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