December 31 sees frequent showers in Killarney. Historical data shows a 52% chance of rain, so pack accordingly. Temperatures average 9°C. Expect a bustling atmosphere in Killarney right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Killarney
Currency
EUR
€ Euro
Language
English
+1 more
Driving
Left side
Connect
As of May 2021, Killarney has 4G from al...
Safety
Very High Safety
GPI: 1.288
Killarney Weather Forecast for December 31
"Rainy & Overcast. Expect average highs of 8.9°C. 52% chance of snow."
What to Wear in Killarney in December
Based on historical data for December 31, Killarney typically experiences temperatures between 4.7°C and 8.9°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 52% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Killarney
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
- Umbrella
Average High
8.9°C
Daytime Peak
Average Low
4.7°C
Nighttime Low
Feels Like
5.7°C
❄️ Slightly colder
Snow Chance
52%
Avg 4.2mm if it snows
Snowfall
0.2 cm
~52% chance
Pressure
1009.9 hPa
High volatility
Killarney Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 78% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
7°C
Dry air
Heat Stress
Low
No heat warning
😕 Best outdoor time:
Midday (11 AM - 3 PM) when warmest
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Ireland
Flight Traffic
High
86/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~6
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Killarney
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
08:47
☀️ Noon
12:42
🌇 Sunset
16:36
⏱️ Daylight
7h 48m
Wind Speed
22.9 km/h
Moderate wind
Sunshine
3.5 hrs
Direct Sun (Cloud-free)
Humidity
88%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Killarney
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Killarney
Travel Comfort Index
Real-time tourism conditions
Weather Quality
🌧️ Variable
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Low pressure & humidity may aggravate joints.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Killarney on December 31 averages 8.9°C with a 52% precipitation probability. Wedding/Outdoor Event Score: 46/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Killarney Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
December 27
9°C • 45% rain
Score
50
December 28
9°C • 46% rain
Score
50
December 25
9.2°C • 50% rain
Score
49
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 31) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Killarney Worth Visiting on December 31?
Planning a trip to Killarney on December 31? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 8.9°C with a 52% historical precipitation risk.
✈️ Travel Logistics: Approximately 6 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Ireland, including COVID-19.
📊 Historical Extremes: The hottest December 31 recorded in the last 30 years saw temperatures hit 13.7°C in 2021, while the coldest dropped to 0.7°C in 2015.