When to go · Hydra
Hydra, month by month
The best months for Hydra: May, Jun, Sep, Oct. Months to avoid: Jul, Aug.
Month by month
- JanuaryMixedOutside the best window (May–Jun, Sep–early Oct). Across Greece: Athens mild and quiet; most island hotels closed and ferries reduced; mountain villages cold with snow.13 °C (55 °F) / 8 °C (46 °F), 9 rain days55 °F (13 °C) / 46 °F (8 °C), 9 rain daysCrowds: Low
- FebruaryMixedOutside the best window (May–Jun, Sep–early Oct). Across Greece: Carnival season (Apokries) with the big parade in Patras; islands still closed.13 °C (55 °F) / 8 °C (46 °F), 8 rain days55 °F (13 °C) / 46 °F (8 °C), 8 rain daysCrowds: Low
- MarchMixedOutside the best window (May–Jun, Sep–early Oct). Across Greece: Clean Monday kite-flying and Independence Day parades (25 March); sea too cold for most.15 °C (59 °F) / 9 °C (48 °F), 7 rain days59 °F (15 °C) / 48 °F (9 °C), 7 rain daysCrowds: Low
- AprilGoodOutside the best window (May–Jun, Sep–early Oct). 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) / 12 °C (54 °F), 5 rain days66 °F (19 °C) / 54 °F (12 °C), 5 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Hydra's best window: May–Jun, Sep–early Oct.24 °C (75 °F) / 16 °C (61 °F), 3 rain days75 °F (24 °C) / 61 °F (16 °C), 3 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Hydra's best window: May–Jun, Sep–early Oct.29 °C (84 °F) / 20 °C (68 °F), 2 rain days84 °F (29 °C) / 68 °F (20 °C), 2 rain daysCrowds: High
- JulyAvoidListed as a month to avoid: Jul–Aug (heat, crowds, ferry sell-outs), Aug peak weekends.32 °C (90 °F) / 23 °C (73 °F), 1 rain days90 °F (32 °C) / 73 °F (23 °C), 1 rain daysCrowds: High
- AugustAvoidListed as a month to avoid: Jul–Aug (heat, crowds, ferry sell-outs), Aug peak weekends.32 °C (90 °F) / 23 °C (73 °F), 1 rain days90 °F (32 °C) / 73 °F (23 °C), 1 rain daysCrowds: High · 1 festival or holiday
- SeptemberGreatInside Hydra's best window: May–Jun, Sep–early Oct.28 °C (82 °F) / 20 °C (68 °F), 2 rain days82 °F (28 °C) / 68 °F (20 °C), 2 rain daysCrowds: Medium
- OctoberGreatInside Hydra's best window: May–Jun, Sep–early Oct.23 °C (73 °F) / 17 °C (63 °F), 5 rain days73 °F (23 °C) / 63 °F (17 °C), 5 rain daysCrowds: Low
- NovemberMixedOutside the best window (May–Jun, Sep–early Oct). Across Greece: Rain arrives; islands largely shut; 17 November marches in Athens. Good for Athens museums.18 °C (64 °F) / 13 °C (55 °F), 8 rain days64 °F (18 °C) / 55 °F (13 °C), 8 rain daysCrowds: Low
- DecemberMixedOutside the best window (May–Jun, Sep–early Oct). Across Greece: Athens and Thessaloniki festive and cheap; mountain villages busy at Christmas; islands closed.15 °C (59 °F) / 10 °C (50 °F), 10 rain days59 °F (15 °C) / 50 °F (10 °C), 10 rain daysCrowds: Low
Compare two months
Weather, crowds and prices for any two months in Hydra, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 24 °C (75 °F)75 °F (24 °C)
Jun: 29 °C (84 °F)84 °F (29 °C)
Night low
May: 16 °C (61 °F)61 °F (16 °C)
Jun: 20 °C (68 °F)68 °F (20 °C)
Rain days
May: 3
Jun: 2 (better)
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside Hydra's best window: May–Jun, Sep–early Oct.
June: Inside Hydra's best window: May–Jun, Sep–early Oct.
Hydra: figures are long-term averages from this guide, not a forecast.