When to go · Petralona
Petralona in September
Good month. Outside the best window (check). Across Greece: Warmest sea, easing crowds and heat; the best all-round month for islands.
Key facts
- Verdict
- Good
- Temperature
- 27°C (81°F)81°F (27°C) / 15°C (59°F)59°F (15°C)
- average high / low
- Rain days
- 5
- Crowds
- Medium
- Greece overall
- Prices
- Medium
- Greece overall
Verdict
Outside the best window (check). Across Greece: Warmest sea, easing crowds and heat; the best all-round month for islands.
Is another month better than September?
No other month rates higher than September for Petralona in this guide.
Weather in September
- PetralonaHighs around 27 °C (81 °F), lows around 15 °C (59 °F), rain on about 5 daysHighs around 81 °F (27 °C), lows around 59 °F (15 °C), rain on about 5 days
Crowds and prices
- Crowds · Greece overall
- Medium
- Prices · Greece overall
- Medium
Greece overall: Warmest sea, easing crowds and heat; the best all-round month for islands.
Compare two months
Weather, crowds and prices for any two months in Petralona, side by side.
Verdict
Sep: Good
Apr: Good
Daytime high
Sep: 27 °C (81 °F)81 °F (27 °C)
Apr: 19 °C (66 °F)66 °F (19 °C)
Night low
Sep: 15 °C (59 °F)59 °F (15 °C)
Apr: 8 °C (46 °F)46 °F (8 °C)
Rain days
Sep: 5 (better)
Apr: 8
Crowds
Sep: Medium
Apr: Medium
Prices
Sep: Medium
Apr: Medium
Festivals listed
Sep: 0
Apr: 1
September: Outside the best window (check). Across Greece: Warmest sea, easing crowds and heat; the best all-round month for islands.
April: Outside the best window (check). Across Greece: Wildflowers and good walking; Orthodox Easter (12 April 2026, 2 May 2027) fills ferries and rooms. Islands start reopening.
Petralona: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.