When to go · Piran
Piran in September
Great month. Inside Piran's best window: May–Sep.
Key facts
- Verdict
- Great
- Temperature
- 24°C (75°F)75°F (24°C) / 16°C (61°F)61°F (16°C)
- average high / low
- Rain days
- 8
- Crowds
- Medium
- Slovenia overall
- Prices
- Medium
- Slovenia overall
Verdict
Inside Piran's best window: May–Sep.
Is another month better than September?
No other month rates higher than September for Piran in this guide.
Weather in September
- PiranHighs around 24 °C (75 °F), lows around 16 °C (61 °F), rain on about 8 daysHighs around 75 °F (24 °C), lows around 61 °F (16 °C), rain on about 8 days
- Karst and coast, Slovenia · Piran, Izola, Koper, Lipicabest weather
Mediterranean; the bora wind blasts the Karst in winter; sea swimming June–September.
Crowds and prices
- Crowds · Slovenia overall
- Medium
- Prices · Slovenia overall
- Medium
Slovenia overall: Best month: warm sea, clear mountains, fewer people.
Compare two months
Weather, crowds and prices for any two months in Piran, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 24 °C (75 °F)75 °F (24 °C)
May: 22 °C (72 °F)72 °F (22 °C)
Night low
Sep: 16 °C (61 °F)61 °F (16 °C)
May: 13 °C (55 °F)55 °F (13 °C)
Rain days
Sep: 8 (better)
May: 9
Crowds
Sep: Medium
May: Medium
Prices
Sep: Medium
May: Medium
Festivals listed
Sep: 0
May: 0
September: Inside Piran's best window: May–Sep.
May: Inside Piran's best window: May–Sep.
Piran: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.