Destination guide
Zakynthos Town weather by month
June, July and August are the best months for reliably warm, dry weather in Zakynthos Town. Daytime averages rise from 25°C in June to 28°C in August, when the sea reaches 26°C. Choose June if you prefer less heat, or late summer if swimming is the priority. May suits time outdoors without summer warmth, while September keeps the warm sea but brings more rain. Winter is mild rather than beach weather.
The climate here is within a degree of Zante, so if you are choosing between the two, the weather will not decide it for you.
- Hottest month
- 28.3°CAugust
- Coolest month
- 13.5°CJanuary
- Warmest sea
- 26.2°CAugust
- Flight from London
- 3 h 30 minShort-haul (up to 4.5 h) · estimated
Zakynthos Town, month by month
Month-by-month detail pages exist for our most searched destinations; for Zakynthos Town the 12-month table below carries the full picture.
A little perspective
Zakynthos Town through the year
Every month at a glance; "best" marks our three top months on warmth, dryness and sunshine.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 13.5°C | 10.8°C | 16.2°C | 4.6 | 145 | 13 | 0% |
| February | 13.6°C | 10.6°C | 15.4°C | 5.2 | 116 | 12 | 0% |
| March | 15.0°C | 11.7°C | 15.2°C | 6.3 | 79 | 10 | 0% |
| April | 17.3°C | 13.7°C | 16.1°C | 7.8 | 42 | 7 | 1% |
| May | 21.0°C | 17.3°C | 19.0°C | 9.4 | 22 | 4 | 5% |
| Junebest | 25.0°C | 21.1°C | 22.5°C | 12.2 | 12 | 2 | 41% |
| Julybest | 27.3°C | 23.7°C | 24.7°C | 13.7 | 5 | 0 | 89% |
| Augustbest | 28.3°C | 24.6°C | 26.2°C | 12.6 | 6 | 1 | 99% |
| September | 25.4°C | 22.2°C | 25.2°C | 9.2 | 62 | 6 | 56% |
| October | 22.1°C | 19.1°C | 23.0°C | 6.5 | 112 | 8 | 7% |
| November | 18.4°C | 15.6°C | 20.5°C | 4.7 | 173 | 13 | 0% |
| December | 15.0°C | 12.3°C | 17.9°C | 4.3 | 173 | 14 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
When to go to Zakynthos Town
For beach weather, look at months where the daytime average clears 25°C and rainy days stay low: June, July, August, September. November is the wettest month (173 mm, about 13 rainy days) and July the driest (5 mm). The sea is warmest in August at 26.2°C and coolest in March at 15.2°C.
Getting there
A direct flight from London Gatwick to Zakynthos International Airport Dionysios Solomos (ZTH, 3 km from Zakynthos) takes roughly 3 h 30 min - short-haul (up to 4.5 h) by UK standards. Time-zone: Europe/Athens.
Records and extremes, 1991-2020
The hottest day recorded in Zakynthos Town between 1991 and 2020 reached 39.9°C on 1 July 2017; the coldest fell to 0.1°C on 8 January 2017. In August one day in ten tops 31.8°C and about 15% of days pass 30°C; in January one night in ten drops to 7.5°C or below. The wettest single month of the period was December 2002 with 448 mm, against a December average of 173 mm.
Sunrise, sunset and daylight in Zakynthos Town
Local time on the 15th of each month; daylight-saving rules as of 2020.
| Month (15th) | Sunrise | Sunset | Daylight | Sunshine/day |
|---|---|---|---|---|
| January | 07:51 | 17:40 | 9.8 h | 4.6 h |
| February | 07:27 | 18:14 | 10.8 h | 5.2 h |
| March | 06:47 | 18:43 | 11.9 h | 6.3 h |
| April | 07:01 | 20:12 | 13.2 h | 7.8 h |
| May | 06:26 | 20:39 | 14.2 h | 9.4 h |
| June | 06:14 | 21:00 | 14.8 h | 12.2 h |
| July | 06:27 | 20:58 | 14.5 h | 13.7 h |
| August | 06:52 | 20:30 | 13.6 h | 12.6 h |
| September | 07:18 | 19:45 | 12.4 h | 9.2 h |
| October | 07:45 | 19:00 | 11.2 h | 6.5 h |
| November | 07:17 | 17:25 | 10.1 h | 4.7 h |
| December | 07:45 | 17:18 | 9.6 h | 4.3 h |
Spring: better for walking than swimming
March is still on the cool side, averaging 15°C by day with 10 rain days, so bring layers and keep outdoor plans flexible. April offers a clearer improvement: daytime temperatures reach 17°C, rain becomes less frequent and sunshine increases to 8 hours. It suits travellers who want to spend time outside without much heat, though the sea remains chilly at 16°C. May is the stronger choice for a warmer spring break, with days around 21°C and only 4 rain days. Even then, the 19°C sea may feel bracing. Pack a light layer for evenings rather than assuming daytime warmth will last after dark.
Summer: the strongest choice for dry days and swimming
June combines 25°C days with just 2 rain days and a sea temperature of 22°C, making it a good balance for swimming and time on foot. July is drier and sunnier, with 27°C days and 14 hours of sunshine; its average of 0 rain days should not be read as a guarantee of no showers. August is the hottest month, with daytime averages of 28°C and the warmest sea at 26°C. Nights average 25°C then, so do not expect much evening cooling. Light clothing, sun protection and a slower pace around midday make sense throughout summer, particularly if you find sustained warmth tiring.
Autumn and winter: lingering sea warmth, then wetter days
September still feels warm, with 25°C days and a matching sea temperature, but 6 rain days make it less dependable than summer. October stays comfortable at 22°C, and the 23°C sea favours swimming when conditions allow; pack for showers as well as sunshine. November drops to 18°C and is the wettest month, so flexible plans matter more than beach time. December has 14 rain days and only 4 hours of sunshine, making waterproofs useful. January and February both average 14°C by day and 11°C at night: mild for winter, but not warm enough to rely on sitting outside comfortably. February's 15°C sea is cold for casual swimming. Choose winter for time outdoors between showers, not for a sunbathing holiday.
A little more detail
Zakynthos Town weather FAQs
Plain answers, grounded in the averages.
What is the best time to visit Zakynthos Town?
Judged on warmth, low rainfall and sunshine, the best months in Zakynthos Town are July, August and June. August is the hottest month (average high 28.3°C) and January the coolest (13.5°C).
How many months a year is Zakynthos Town over 25°C?
4 months in Zakynthos Town average a daytime high of 25°C or more, and 6 average 20°C or more.
When is the rainy season in Zakynthos Town?
November is the wettest month in Zakynthos Town (173 mm on average) and July the driest (5 mm). Annual rainfall averages 947 mm.
What is the hottest temperature recorded in Zakynthos Town?
The hottest day recorded in Zakynthos Town between 1991 and 2020 reached 39.9°C on 1 July 2017; the coldest fell to 0.1°C on 8 January 2017. Records come from daily data for 1991-2020, not from a single station's all-time history.
When is the sea warmest in Zakynthos Town?
August has the warmest sea at 26°C. July and September both average 25°C, so September remains a good swimming option despite the greater chance of rain. October's 23°C sea also retains warmth, though the weather is less reliable.
Which month is best if I dislike hot weather?
May is a good compromise, with daytime temperatures averaging 21°C and only 4 rain days. April is cooler at 17°C if walking matters more than swimming. October offers 22°C days, but its 8 rain days mean more weather-dependent plans.
Will I need a jacket in the evenings?
Bring a layer outside summer, especially in winter when January and February nights average 11°C. May evenings are milder at 17°C but can still call for a light jacket. July and August nights stay warm at 24°C and 25°C.
See also: Greece weather by month · where else is hot in August
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Zakynthos. Sea temperature from the nearest 5 km sea cell, 1.9 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C