Month summary
Riga weather in September
✅ Good
🌡️ Temperature min / max
52°F – 64°F
🌧 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
Autumn in Riga is often underrated: 18°F, 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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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | 27°F | 34°F | 46% | 0.1in | 0.8h | 1.3/10 |
| 🌨️ February | 28°F | 36°F | 39% | 0.1in | 3.9h | 2.7/10 |
| 🌦️ March | 30°F | 43°F | 35% | 0.1in | 8.0h | 4.2/10 |
| 🌦️ April | 36°F | 50°F | 37% | 0.1in | 12.1h | 6.0/10 |
| ⛅ May | 45°F | 63°F | 31% | 0.1in | 14.7h | 7.4/10 |
| 🌤️ June | 54°F | 72°F | 41% | 0.1in | 15.4h | 8.0/10 |
| 🌦️ July | 59°F | 72°F | 50% | 0.1in | 14.4h | 7.7/10 |
| 🌤️ August | 57°F | 72°F | 46% | 0.1in | 12.6h | 7.6/10 |
| 🌤️ September | 52°F | 64°F | 39% | 0.1in | 10.5h | 7.1/10 |
| 🌦️ October | 43°F | 52°F | 48% | 0.1in | 6.0h | 4.1/10 |
| 🌦️ November | 36°F | 43°F | 42% | 0.1in | 1.3h | 1.8/10 |
| 🌨️ December | 30°F | 36°F | 47% | 0.1in | 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 64°F, 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°F
- 🌧 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 64°F max and 10.5h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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