How hot are Zante's days, and how cool are its nights?
From June to September the afternoons reach 28 °C or more and the nights don't fall below 18 °C. From December to March the highs stay at 17 °C or less, and the lows sit between 7 °C and 9 °C.
The table puts the official figures side by side. Low and high are the minimum and maximum temperatures in the Hellenic National Meteorological Service's 1991–2020 normals for its Zakynthos station. Rain and rainy days come from the 1961–1990 normals Greece supplied to the World Meteorological Organization for Zakynthos airport, and sunshine is the daily average in the Service's station statistics.
| Month | Low | High | Rain | Rainy days | Sun, hours a day |
|---|---|---|---|---|---|
| January | 7 °C | 14 °C | 150 mm | 12.8 | 4 |
| February | 7 °C | 15 °C | 113 mm | 11.3 | 5 |
| March | 8 °C | 17 °C | 90 mm | 8.2 | 7 |
| April | 11 °C | 20 °C | 51 mm | 6.1 | 8 |
| May | 14 °C | 25 °C | 17 mm | 2.5 | 10 |
| June | 18 °C | 30 °C | 7 mm | 1.1 | 12 |
| July | 20 °C | 33 °C | 5 mm | 0.5 | 13 |
| August | 21 °C | 33 °C | 9 mm | 0.9 | 12 |
| September | 18 °C | 28 °C | 25 mm | 2.8 | 9 |
| October | 15 °C | 24 °C | 147 mm | 8.1 | 7 |
| November | 12 °C | 20 °C | 159 mm | 11.0 | 5 |
| December | 9 °C | 16 °C | 170 mm | 13.2 | 4 |
What's the weather like in Zante in May?
Warm by day, fresh at night: May averages highs of 25 °C and lows of 14 °C. It is already a dry month, with 17 mm of rain over 2.5 days of a millimetre or more and 10 hours of sunshine a day.
It is also the month the island's clubs start up again. In 2026 Club Barrage, in Argasi, opened its season on 9 May, and our May page keeps what was on.
For the night itself, plan around the low. At 14 °C, long sleeves or a light jacket earn their place on the way home.
What are July and August like after dark?
They are the hottest months of the year: highs of 33 °C in both, and lows of 20 °C in July and 21 °C in August, the warmest nights of the year.
Rain hardly shows up. July gets 5 mm and August 9 mm, with 0.5 and 0.9 days a month reaching a millimetre, and July has 13 hours of sunshine a day.
These are also the weeks the island's weekly club nights ran through in 2026: the July and August pages show them night by night.
Zante weather in September and October: does the summer hold?
September holds; October turns. September still averages 28 °C by day and 18 °C at night with 25 mm of rain, while October drops to 24 °C and 15 °C and brings 147 mm over 8.1 rainy days.
October is also when thunder comes back. The 1961–1990 normals count 4.7 days with thunder in October, against 0.5 in July, and sunshine drops from 9 hours a day in September to 7.
The nights wind down with it. In 2026 Club Barrage's last listed night was on 10 October; the September and October pages keep the end of the season.
How windy is Zante, and when do the storms come?
On average, not very windy. In the 1961–1990 normals for Zakynthos airport the mean wind speed stays between 3.4 m/s in September and 4.6 m/s in February, with July in between at 3.8 m/s.
Gales are rare: those normals count 0.5 days a year with gale-force winds. Thunder is a cold-season affair, with 34.7 days a year and the most in November, 5.5.
Within the season of nights, thunder is likelier at the edges than in high summer: 1.4 days in May and 2.3 in September, against 0.9 in August.
What should you pack for Zante's nights?
Pack for the low, not the high. With nights of 14 °C in May and 15 °C in October, something with sleeves is worth carrying; in July and August, at 20 °C to 21 °C, it can stay in your room.
For the outfits themselves, from all-white nights to smart ones, read what to wear on Zante's nights. For the days in between, the sea is in Zante's beaches coast by coast.
Which station, and which years?
Two official datasets, because neither covers everything. The temperatures are the Hellenic National Meteorological Service's 1991–2020 normal values for its Zakynthos station, as shown on its climate data page, rounded to the degree.
Rain, rainy days, wind, thunder and gales come from another official series: the 1961–1990 normals for Zakynthos airport that Greece sent to the World Meteorological Organization, which NOAA's climate archive keeps online. The Service's own page shows gaps in Zante's rainfall, so we don't use it for rain.
Sunshine is the daily mean in the Service's statistics for the station, which don't state their years. We found no official monthly sea temperature for Zante, so we don't give one.
