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Island in Ionian Islands, Greece

Zakynthos weather by month and the best time to visit

Updated October 2026Sources
May–Jun, Sep–OctBest time to visit

When to go to Zakynthos

May–June and September–October have warm sea and fewer crowds. July–August is hot and packed; turtle nesting runs May–Aug and the island is quiet in winter.

Zakynthos weather by month

Average daily high, rainfall and conditions.

PleasantHotRainyCool or coldBest months
10°15°20°25°30°JFMAMJJASOND
Average highAverage lowRainfall

Monthly averages

MonthHighLowRainHumidityConditions
January14°C57°F12°C53°F116 mm75%Cool
February14°C57°F12°C53°F88 mm76%Cool
March15°C60°F13°C55°F70 mm77%Cool
April18°C64°F15°C58°F40 mm77%Cool
May21°C70°F18°C65°F24 mm76%Pleasant
June26°C78°F22°C72°F17 mm73%Pleasant
July28°C83°F25°C76°F11 mm70%Pleasant
August29°C85°F26°C78°F15 mm68%Pleasant
September26°C79°F23°C74°F70 mm69%Pleasant
October23°C73°F20°C68°F100 mm73%Pleasant
November19°C67°F17°C63°F125 mm74%Pleasant
December16°C60°F13°C56°F145 mm74%Cool

Best months across Greece

PlaceBest monthsWarmest month
AthensApr–Jun, Sep–OctJul (33°C)
SantoriniMay–Jun, Sep–OctAug (26°C)
MykonosMay–Jun, SepAug (25°C)
CreteMay–Jun, Sep–OctAug (28°C)
RhodesMay–Jun, Sep–OctAug (32°C)
CorfuMay–Jun, Sep–OctAug (30°C)
ThessalonikiApr–Jun, Sep–OctJul (34°C)
NaxosMay–Jun, Sep–OctAug (27°C)
ParosMay–Jun, Sep–OctAug (27°C)
ZakynthosMay–Jun, Sep–OctAug (29°C)
ChaniaMay–Jun, Sep–OctJul (30°C)
MilosMay–Jun, Sep–OctAug (26°C)
KosMay–Jun, Sep–OctAug (32°C)
KefaloniaMay–Jun, Sep–OctAug (29°C)
MeteoraApr–May, Sep–OctJul (36°C)
HalkidikiJun–SepJul (29°C)
IosJun–SepAug (26°C)
LefkadaMay–Jun, Sep–OctAug (31°C)
NafplioApr–Jun, Sep–OctJul (36°C)
SkiathosJun–Jul, SepAug (28°C)
HydraMay–Jun, Sep–OctAug (28°C)
PeloponneseApr–Jun, Sep–OctAug (33°C)
ThassosJun–Jul, SepAug (33°C)

Quick answers

What is the best month to visit Zakynthos?

May–Jun, Sep–Oct. May–June and September–October have warm sea and fewer crowds. July–August is hot and packed; turtle nesting runs May–Aug and the island is quiet in winter.

When is the rainy season in Zakynthos?

Rain peaks in December with about 145 mm. No month averages 150 mm or more.

What is the hottest month in Zakynthos?

August, with average highs of 29°C (85°F).

How cold does Zakynthos get?

The coolest nights are in February, averaging 12°C (53°F).

More about Zakynthos

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Sources

Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.