December 3 is generally a great time to visit Piran. While there is a slight chance of rain (34%), showers are usually brief. Expect comfortable 11°C weather. Piran is seeing high visitor numbers, so iconic spots may be busier than usual.
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Essential Travel Info for Piran
Currency
EUR
€ Euro
Language
Slovene
Driving
Right side
Safety
Very High Safety
GPI: 1.316
Piran Weather Forecast for December 3
"Mild & Comfortable. Expect average highs of 11°C. 34% chance of rain."
What to Wear in Piran in December
Based on historical data for December 3, Piran typically experiences temperatures between 6.3°C and 11°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 34% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Piran
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
- Umbrella
Average High
11°C
Daytime Peak
Average Low
6.3°C
Nighttime Low
Feels Like
9.8°C
❄️ Minor difference
Rain Chance
34%
Avg 2.9mm if it rains
Cloud Cover
67%
Overcast
Pressure
1015.9 hPa
High volatility
Piran Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% 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
6.7°C
Dry air
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Slovenia
Flight Traffic
Busy
66/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~21
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Piran
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:28
☀️ Noon
11:56
🌇 Sunset
16:24
⏱️ Daylight
8h 56m
Wind Speed
15.6 km/h
Gentle breeze
Sunshine
5.0 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Piran
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Piran
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Weather unlikely to affect joint pain.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Piran on December 3 averages 11°C with a 34% precipitation probability. Wedding/Outdoor Event Score: 70/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Piran Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
November 26
12.1°C • 35% rain
Score
76
November 29
11.5°C • 31% rain
Score
75
November 27
12°C • 38% rain
Score
74
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 3) in other destinations
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📍 Is Piran Worth Visiting on December 3?
Planning a trip to Piran on December 3? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 11°C with a 34% historical precipitation risk.
✈️ Travel Logistics: Approximately 21 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Slovenia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 14°C (polar plunge). Wave conditions are generally fun waves with heights around 0.5m.
📊 Historical Extremes: The hottest December 3 recorded in the last 30 years saw temperatures hit 13.7°C in 2025, while the coldest dropped to 1.6°C in 2023.