Riga · AutumnMonth summary
Riga weather in September
✅ Good
🌡️ Temperature min / max
11°C – 18°C
🌧 Rainy days
39% of days
☀️ Sunshine
10.5h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.1/10
📅 📅 Best month
June (8.0/10)
Quick decision
Should you visit Riga 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: Favourable conditions in September (7.1/10). June scores higher but the gap is small.
By trip type
Riga 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 Riga is often underrated: 18°C, golden light and declining crowds. An interesting window. Expect rain on 39% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. June (8.0/10) is significantly better if possible.
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All months for Riga
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | -3°C | 1°C | 46% | 1.8 | 0.8h | 1.3/10 |
| 🌨️ February | -2°C | 2°C | 39% | 1.7 | 3.9h | 2.7/10 |
| 🌦️ March | -1°C | 6°C | 35% | 1.3 | 8.0h | 4.2/10 |
| 🌦️ April | 2°C | 10°C | 37% | 1.5 | 12.1h | 6.0/10 |
| ⛅ May | 7°C | 17°C | 31% | 1.8 | 14.7h | 7.4/10 |
| 🌤️ June | 12°C | 22°C | 41% | 2.6 | 15.4h | 8.0/10 |
| 🌦️ July | 15°C | 22°C | 50% | 2.9 | 14.4h | 7.7/10 |
| 🌤️ August | 14°C | 22°C | 46% | 3.2 | 12.6h | 7.6/10 |
| 🌤️ September | 11°C | 18°C | 39% | 2.0 | 10.5h | 7.1/10 |
| 🌦️ October | 6°C | 11°C | 48% | 2.7 | 6.0h | 4.1/10 |
| 🌦️ November | 2°C | 6°C | 42% | 1.9 | 1.3h | 1.8/10 |
| 🌨️ December | -1°C | 2°C | 47% | 1.7 | 0.2h | 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, Riga averages 18°C, 39% rainy days and 10.5h of sunshine per day. Overall weather score: 7.1/10.
See methodology →
Comparison
September vs June (best month)
The best month is June (score 8.0/10). Difference:
- 🌡️ Max temperature : +4°C
- 🌧 Rainy days : +2%
- ☀️ Sunshine : +4.9h/day
FAQ
FAQ — Riga in September
Is September a good time to visit Riga?
September is an acceptable time for Riga (score 7.1/10). Conditions are decent but not optimal — consider June (8.0/10) if possible.
What to do in Riga in September?
With 18°C max and 10.5h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Riga
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