Piran · AutumnMonth summary
Piran weather in September
✅ Good
🌡️ Temperature min / max
64°F – 75°F
🌧 Rainy days
35% of days
☀️ Sunshine
11.7h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.8/10
📅 📅 Best month
July (9.0/10)
Quick decision
Should you visit Piran in September?
✅ Good
✅ Yes if: you want shoulder-season value — fewer crowds, 24°F.
❌ No if: you need maximum sunshine — some overcast days are possible.
Our take: September is a good time to visit Piran. July remains slightly better (+1.2 pts).
By trip type
Piran in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
Autumn in Piran is often underrated: 24°F, golden light and declining crowds. An interesting window. Expect rain on 35% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (9.0/10) remains theoretically better.
Browse by month
All months for Piran
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 37°F | 48°F | 30% | 0.1in | 7.7h | 4.6/10 |
| 🌫️ February | 39°F | 52°F | 31% | 0.1in | 9.0h | 5.3/10 |
| ⛅ March | 43°F | 55°F | 30% | 0.1in | 10.8h | 6.8/10 |
| ⛅ April | 48°F | 61°F | 31% | 0.1in | 12.1h | 7.1/10 |
| 🌦️ May | 57°F | 68°F | 46% | 0.2in | 13.0h | 7.3/10 |
| 🌤️ June | 66°F | 79°F | 25% | 0.1in | 14.0h | 8.8/10 |
| 🌤️ July | 70°F | 82°F | 27% | 0.1in | 14.0h | 9.0/10 |
| ☀️ August | 72°F | 82°F | 22% | 0.1in | 13.0h | 9.0/10 |
| 🌤️ September | 64°F | 75°F | 35% | 0.2in | 11.7h | 7.8/10 |
| 🌤️ October | 55°F | 66°F | 31% | 0.2in | 9.9h | 7.2/10 |
| 🌦️ November | 48°F | 59°F | 44% | 0.2in | 8.0h | 5.1/10 |
| 🌫️ December | 41°F | 52°F | 34% | 0.1in | 7.0h | 4.5/10 |
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, Piran averages 75°F, 35% rainy days and 11.7h of sunshine per day. Overall weather score: 7.8/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 9.0/10). Difference:
- 🌡️ Max temperature : +4°F
- 🌧 Rainy days : -8%
- ☀️ Sunshine : +2.3h/day
FAQ
FAQ — Piran in September
Is September a good time to visit Piran?
September is an excellent time to visit Piran (score 7.8/10). With 75°F, 11.7h of sunshine and 35% rain, conditions are very favourable.
What to do in Piran in September?
With 75°F max and 11.7h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Piran
Guided tours, skip-the-line tickets and local experiences.
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