December 18 is generally a great time to visit Turku. While there is a slight chance of rain (24%), showers are usually brief. Expect comfortable 1°C weather. As it's peak season for Turku, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Turku
Currency
EUR
€ Euro
Language
Finnish
+1 more
Driving
Right side
Connect
Students and personnel from participatin...
Safety
Very High Safety
GPI: 1.439
Turku Weather Forecast for December 18
"Cold & Crisp. Expect average highs of 1°C. 24% chance of snow."
What to Wear in Turku in December
Based on historical data for December 18, Turku typically experiences temperatures between -3.4°C and 1°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (24% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Turku
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
1°C
Daytime Peak
Average Low
-3.4°C
Nighttime Low
Feels Like
-3.8°C
🥶 Slightly colder
Snow Chance
24%
Avg 1.2mm if it snows
Snowfall
0.5 cm
~24% chance
Pressure
1008.9 hPa
High volatility
Turku 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
-0.5°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 Finland
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~19
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Turku
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
09:36
☀️ Noon
12:28
🌇 Sunset
15:20
⏱️ Daylight
5h 44m
Wind Speed
18.5 km/h
Gentle breeze
Sunshine
1.2 hrs
Direct Sun (Cloud-free)
Humidity
90%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Turku
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Turku
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.
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, Turku on December 18 averages 1°C with a 24% precipitation probability. Wedding/Outdoor Event Score: 17/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Turku Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (December 18) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Turku Worth Visiting on December 18?
Planning a trip to Turku 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 1°C with a 24% historical precipitation risk.
✈️ Travel Logistics: Approximately 19 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 8 vaccinations are recommended for Finland, including COVID-19.
📊 Historical Extremes: The hottest December 18 recorded in the last 30 years saw temperatures hit 6.5°C in 2015, while the coldest dropped to -7.2°C in 2024.