When to go · Petralona
Petralona, month by month
Good months for Petralona: Apr, May, Jun, Sep, Oct.
Month by month
- JanuaryMixedOutside the best window (check). Across Greece: Athens mild and quiet; most island hotels closed and ferries reduced; mountain villages cold with snow.9 °C (48 °F) / 1 °C (34 °F), 9 rain days48 °F (9 °C) / 34 °F (1 °C), 9 rain daysCrowds: Low
- FebruaryMixedOutside the best window (check). Across Greece: Carnival season (Apokries) with the big parade in Patras; islands still closed.11 °C (52 °F) / 2 °C (36 °F), 8 rain days52 °F (11 °C) / 36 °F (2 °C), 8 rain daysCrowds: Low
- MarchMixedOutside the best window (check). Across Greece: Clean Monday kite-flying and Independence Day parades (25 March); sea too cold for most.14 °C (57 °F) / 4 °C (39 °F), 8 rain days57 °F (14 °C) / 39 °F (4 °C), 8 rain daysCrowds: Low
- AprilGoodOutside 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.19 °C (66 °F) / 8 °C (46 °F), 8 rain days66 °F (19 °C) / 46 °F (8 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- MayGoodOutside the best window (check). Across Greece: Warm, green and open; sea cool but swimmable late in the month. Best for sightseeing and hiking.24 °C (75 °F) / 12 °C (54 °F), 7 rain days75 °F (24 °C) / 54 °F (12 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
- JuneGoodOutside the best window (check). Across Greece: Long days, warm sea, full ferry timetables; first heatwaves late in the month.29 °C (84 °F) / 16 °C (61 °F), 5 rain days84 °F (29 °C) / 61 °F (16 °C), 5 rain daysCrowds: High
- JulyMixedOutside the best window (check). Across Greece: Hot; meltemi winds in the Aegean; Santorini and Mykonos at their most crowded and expensive.32 °C (90 °F) / 19 °C (66 °F), 3 rain days90 °F (32 °C) / 66 °F (19 °C), 3 rain daysCrowds: High
- AugustMixedOutside the best window (check). Across Greece: Greek holiday peak around 15 August; ferries sold out, wildfire risk highest, rooms at top prices.32 °C (90 °F) / 19 °C (66 °F), 3 rain days90 °F (32 °C) / 66 °F (19 °C), 3 rain daysCrowds: High · 1 festival or holiday
- SeptemberGoodOutside the best window (check). Across Greece: Warmest sea, easing crowds and heat; the best all-round month for islands.27 °C (81 °F) / 15 °C (59 °F), 5 rain days81 °F (27 °C) / 59 °F (15 °C), 5 rain daysCrowds: Medium
- OctoberGoodOutside the best window (check). Across Greece: Still swimmable in Crete and Rhodes; many Cyclades businesses close after mid-month.21 °C (70 °F) / 11 °C (52 °F), 7 rain days70 °F (21 °C) / 52 °F (11 °C), 7 rain daysCrowds: Low
- NovemberMixedOutside the best window (check). Across Greece: Rain arrives; islands largely shut; 17 November marches in Athens. Good for Athens museums.15 °C (59 °F) / 6 °C (43 °F), 9 rain days59 °F (15 °C) / 43 °F (6 °C), 9 rain daysCrowds: Low
- DecemberMixedOutside the best window (check). Across Greece: Athens and Thessaloniki festive and cheap; mountain villages busy at Christmas; islands closed.11 °C (52 °F) / 3 °C (37 °F), 10 rain days52 °F (11 °C) / 37 °F (3 °C), 10 rain daysCrowds: Low
Compare two months
Weather, crowds and prices for any two months in Petralona, side by side.
Verdict
Apr: Good
May: Good
Daytime high
Apr: 19 °C (66 °F)66 °F (19 °C)
May: 24 °C (75 °F)75 °F (24 °C)
Night low
Apr: 8 °C (46 °F)46 °F (8 °C)
May: 12 °C (54 °F)54 °F (12 °C)
Rain days
Apr: 8
May: 7 (better)
Crowds
Apr: Medium
May: Medium
Prices
Apr: Medium
May: Medium
Festivals listed
Apr: 1
May: 1
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.
May: Outside the best window (check). Across Greece: Warm, green and open; sea cool but swimmable late in the month. Best for sightseeing and hiking.
Petralona: figures are long-term averages from this guide, not a forecast.