December 18 is statistically one of the best days of the year in Prague. With minimal rain risk (12%) and pleasant highs of 4°C, it's ideal for outdoor adventures. Prague is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Prague
Currency
CZK
Kč Czech koruna
Language
Czech
+1 more
Driving
Right side
Connect
Prague has 5G from all Czech carriers (O...
Safety
Very High Safety
GPI: 1.318
Prague Weather Forecast for December 18
"Cold & Crisp. Expect average highs of 3.8°C. 12% chance of snow."
What to Wear in Prague in December
Based on historical data for December 18, Prague typically experiences temperatures between -1°C and 3.8°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (12% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Prague
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
3.8°C
Daytime Peak
Average Low
-1°C
Nighttime Low
Feels Like
0.4°C
❄️ Slightly colder
Snow Chance
12%
Avg 0.7mm if it snows
Snowfall
0.3 cm
~12% chance
Pressure
1021.4 hPa
High volatility
Prague Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
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
1.3°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 Czech Republic
Flight Traffic
High
89/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~300
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Prague
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:57
☀️ Noon
12:00
🌇 Sunset
16:02
⏱️ Daylight
8h 4m
Wind Speed
14.2 km/h
Gentle breeze
Sunshine
3.2 hrs
Direct Sun (Cloud-free)
Humidity
84%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Prague
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Prague
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
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 acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Prague on December 18 averages 3.8°C with a 12% precipitation probability. Wedding/Outdoor Event Score: 41/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Prague Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (December 18) in other destinations
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📍 Is Prague Worth Visiting on December 18?
Planning a trip to Prague on December 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 3.8°C with a 12% historical precipitation risk.
✈️ Travel Logistics: Approximately 300 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest December 18 recorded in the last 30 years saw temperatures hit 11°C in 2015, while the coldest dropped to -8.4°C in 2022.