October 21 is generally a great time to visit Turku. While there is a slight chance of rain (22%), showers are usually brief. Expect comfortable 8°C weather. You'll find plenty of company in Turku this month as tourism activity remains quite robust.
View the full calendar
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 October 21
"Mild & Comfortable. Expect average highs of 7.6°C. 22% chance of rain."
What to Wear in Turku in October
Based on historical data for October 21, Turku typically experiences temperatures between 2.9°C and 7.6°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (22% 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
7.6°C
Daytime Peak
Average Low
2.9°C
Nighttime Low
Feels Like
4.7°C
❄️ Slightly colder
Rain Chance
22%
Avg 1.3mm if it rains
Cloud Cover
75%
Overcast
Pressure
1012.4 hPa
High volatility
Turku Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 93% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 114 min to burn
Type III-IV
🟡 171 min to burn
Type V-VI
🟢 285 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
5.4°C
Dry air
Heat Stress
Low
No heat warning
😕 Best outdoor time:
Midday (11 AM - 3 PM) when warmest
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 Finland
Flight Traffic
Busy
79/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~15
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Turku
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:26
☀️ Noon
12:16
🌇 Sunset
17:06
⏱️ Daylight
9h 40m
Wind Speed
17 km/h
Gentle breeze
Sunshine
4.1 hrs
Direct Sun (Cloud-free)
Humidity
86%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Turku
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Turku
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Mild discomfort possible for arthritic conditions.
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 October 21 averages 7.6°C with a 22% precipitation probability. Wedding/Outdoor Event Score: 54/100."
— 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
Better Alternatives Nearby
Consider these dates within ±7 days
October 14
9.4°C • 22% rain
Score
65
October 15
9.1°C • 18% rain
Score
64
October 16
8.9°C • 22% rain
Score
61
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Turku Worth Visiting on October 21?
Planning a trip to Turku on October 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 7.6°C with a 22% historical precipitation risk.
✈️ Travel Logistics: Approximately 15 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 8 vaccinations are recommended for Finland, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 8.4°C (polar plunge). Wave conditions are generally lake-like with heights around 0.32m.
📊 Historical Extremes: The hottest October 21 recorded in the last 30 years saw temperatures hit 13.7°C in 2024, while the coldest dropped to -3.2°C in 2017.