Tallinn · AutumnMonth summary
Tallinn weather in September
✅ Good
🌡️ Temperature min / max
11°C – 16°C
🌧 Rainy days
41% of days
☀️ Sunshine
9.6h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.0/10
📅 📅 Best month
June (7.7/10)
Quick decision
Should you visit Tallinn in September?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: Tallinn in September: 16°C and 9.6h of sunshine. Decent, but not the peak.
By trip type
Tallinn in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in September
🎯 Harvest season — fresh local produce at markets and restaurants Autumn in Tallinn is often underrated: 16°C, golden light and declining crowds. An interesting window. Expect rain on 41% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. June (7.7/10) is significantly better if possible.
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All months for Tallinn
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | -3°C | 1°C | 46% | 1.9 | 0.2h | 1.1/10 |
| 🌨️ February | -3°C | 1°C | 41% | 1.7 | 1.7h | 1.8/10 |
| 🌨️ March | -2°C | 4°C | 34% | 1.2 | 7.8h | 4.1/10 |
| 🌫️ April | 1°C | 8°C | 34% | 1.5 | 12.0h | 5.6/10 |
| ⛅ May | 6°C | 15°C | 26% | 1.5 | 15.0h | 7.3/10 |
| 🌤️ June | 12°C | 20°C | 37% | 2.4 | 16.3h | 7.7/10 |
| 🌦️ July | 14°C | 21°C | 47% | 3.0 | 15.0h | 7.6/10 |
| 🌦️ August | 14°C | 20°C | 50% | 3.2 | 12.6h | 7.2/10 |
| 🌦️ September | 11°C | 16°C | 41% | 2.2 | 9.6h | 7.0/10 |
| 🌦️ October | 6°C | 10°C | 46% | 2.4 | 5.3h | 4.0/10 |
| 🌦️ November | 2°C | 5°C | 48% | 2.2 | 0.8h | 1.1/10 |
| 🌨️ December | -2°C | 2°C | 46% | 1.8 | 0.0h | 1.1/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Tallinn averages 16°C, 41% rainy days and 9.6h of sunshine per day. Overall weather score: 7.0/10.
See methodology →
Comparison
September vs June (best month)
The best month is June (score 7.7/10). Difference:
- 🌡️ Max temperature : +4°C
- 🌧 Rainy days : -4%
- ☀️ Sunshine : +6.7h/day
FAQ
FAQ — Tallinn in September
Is September a good time to visit Tallinn?
September is an acceptable time for Tallinn (score 7.0/10). Conditions are decent but not optimal — consider June (7.7/10) if possible.
What to do in Tallinn in September?
With 16°C max and 9.6h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Tallinn
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