August 25 is generally a great time to visit Tallinn. While there is a slight chance of rain (33%), showers are usually brief. Expect comfortable 20°C weather. Expect a bustling atmosphere in Tallinn right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Tallinn
Currency
EUR
€ Euro
Language
Estonian
Driving
Right side
Connect
Wi-Fi are available in many public areas...
Safety
High Safety
GPI: 1.662
Tallinn Weather Forecast for August 25
"Mild & Comfortable. Expect average highs of 19.5°C. 33% chance of rain."
What to Wear in Tallinn in August
Based on historical data for August 25, Tallinn typically experiences temperatures between 13°C and 19.5°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 33% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Tallinn
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
19.5°C
Daytime Peak
Average Low
13°C
Nighttime Low
Feels Like
19.5°C
🌤️ Feels accurate
Rain Chance
33%
Avg 1.9mm if it rains
Cloud Cover
64%
Light drizzle
Pressure
1012.1 hPa
High volatility
Tallinn 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
Type I-II
🔴 32 min to burn
Type III-IV
🟡 48 min to burn
Type V-VI
🟢 80 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°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
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Estonia
Flight Traffic
High
86/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~49
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Tallinn
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:01
☀️ Noon
12:24
🌇 Sunset
19:47
⏱️ Daylight
14h 45m
Wind Speed
18.4 km/h
Gentle breeze
Sunshine
9.9 hrs
Direct Sun (Cloud-free)
Humidity
80%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Tallinn
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 Tallinn
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
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, Tallinn on August 25 averages 19.5°C with a 33% precipitation probability. Wedding/Outdoor Event Score: 90/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Tallinn Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
August 18
21°C • 30% rain
Score
94
August 19
20.8°C • 28% rain
Score
94
August 20
20.5°C • 29% rain
Score
94
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 25) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Tallinn Worth Visiting on August 25?
Planning a trip to Tallinn on August 25? 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 19.5°C with a 33% historical precipitation risk.
✈️ Travel Logistics: Approximately 49 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Estonia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 18.9°C (refreshing tonic). Wave conditions are generally lake-like with heights around 0.47m.
📊 Historical Extremes: The hottest August 25 recorded in the last 30 years saw temperatures hit 27.4°C in 2024, while the coldest dropped to 9.2°C in 2025.