August 4 is generally a great time to visit Turku. While there is a slight chance of rain (36%), showers are usually brief. Expect comfortable 22°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 August 4
"Mild & Comfortable. Expect average highs of 21.5°C. 36% chance of rain."
What to Wear in Turku in August
Based on historical data for August 4, Turku typically experiences temperatures between 14°C and 21.5°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 36% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Turku
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
21.5°C
Daytime Peak
Average Low
14°C
Nighttime Low
Feels Like
21.8°C
☀️ Feels accurate
Rain Chance
36%
Avg 2mm if it rains
Cloud Cover
57%
Overcast
Pressure
1011.8 hPa
Medium volatility
Turku Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 84% 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
🔴 30 min to burn
Type III-IV
🟡 45 min to burn
Type V-VI
🟢 75 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.9°C
Noticeable
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
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Finland
Flight Traffic
High
95/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~18
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Turku
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:16
☀️ Noon
12:38
🌇 Sunset
21:00
⏱️ Daylight
16h 43m
Wind Speed
16.1 km/h
Gentle breeze
Sunshine
12.7 hrs
Direct Sun (Cloud-free)
Humidity
75%
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
⛅ Good
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
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 August 4 averages 21.5°C with a 36% precipitation probability. Wedding/Outdoor Event Score: 92/100."
— 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
July 28
22.7°C • 34% rain
Score
93
July 29
22.4°C • 34% rain
Score
93
August 9
21.4°C • 33% rain
Score
93
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 4) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Turku Worth Visiting on August 4?
Planning a trip to Turku on August 4? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 21.5°C with a 36% historical precipitation risk.
✈️ Travel Logistics: Approximately 18 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 22.7°C (swimming pool). Wave conditions are generally lake-like with heights around 0.29m.
📊 Historical Extremes: The hottest August 4 recorded in the last 30 years saw temperatures hit 24.8°C in 2025, while the coldest dropped to 7°C in 2019.