Weather in Zakynthos - 14-day forecast

Detailed weather forecast for Zakynthos, Greece: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Zakynthos

today☀️ 32°💧 0.1 mm

Sun☀️ 33°💧 0.6 mm

Mon☀️ 31°night 26°

Tue☀️ 29°💧 0.3 mm

Wed☀️ 29°night 26°

Thu☀️ 28°night 26°

Fri🌧️ 28°💧 1 mm

Sat☁️ 27°💧 3.8 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Saturday 5 Sept in Zakynthos, the forecast high is 32°C. Typical daytime temperatures at this time of year range from 25°C to 29°C, so it will be exceptionally warm. It is warmer than 100% of similar days.

Saturday 5 Sept

32°Cexceptionally warm

usually 25°C–29°C

warmer than 100% of similar days

night: warmer than usual rain: typical rainfall wind: lighter than usual

Sunday 6 Sept

33°Cexceptionally warm

usually 25°C–29°C

warmer than 99% of similar days

night: exceptionally warm rain: more rain than usual wind: typical

Monday 7 Sept

31°Cexceptionally warm

usually 25°C–28°C

warmer than 98% of similar days

night: exceptionally warm rain: less rain than usual wind: lighter than usual

Tuesday 8 Sept

29°Cexceptionally warm

usually 25°C–28°C

warmer than 91% of similar days

night: exceptionally warm rain: typical rainfall wind: exceptionally light

Wednesday 9 Sept

29°Cexceptionally warm

usually 25°C–28°C

warmer than 91% of similar days

night: exceptionally warm rain: less rain than usual wind: lighter than usual

Thursday 10 Sept

28°Cwarmer than usual

usually 25°C–28°C

warmer than 83% of similar days

night: exceptionally warm rain: less rain than usual wind: lighter than usual

Friday 11 Sept

28°Cwarmer than usual

usually 25°C–28°C

warmer than 78% of similar days

night: exceptionally warm rain: more rain than usual wind: lighter than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 26°C by day. The coolest year was 1996 (23°C) and the warmest was 2008 (30°C). The current forecast averages 30°C - higher than in 100% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

Weather warnings - Zakynthos

No active weather warnings for Zakynthos (region: IONION ISLANDS). The national weather service is not forecasting dangerous conditions.

14-day forecast - Zakynthos

Zakynthos - 14-day weather forecast infographic

Zakynthos 30 & 45-day weather - long-range outlook

Next 16 days · forecast

28°

around 26° at night · days with rain: 5

Weeks 3-4 · avg for September

29°

around 18° at night · rain chance 23%

Weeks 5-7 · avg for October

24°

around 15° at night · rain chance 33%

The 30 & 45-day outlook for Zakynthos: the next 16 days are a numerical forecast updated daily - on average 28° by day and 26° at night. Further out we rely on multi-year climate averages: around 29° in September, and about 24° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Zakynthos

Saturday5 September 2026

☀️32°clear sky

sunrise 07:09 · sunset 20:00 · night 25° · evening 33° · rain 0.12 mm · humidity 48% · wind 4 m/s · clouds 1%

Sunday6 September 2026

☀️33°clear sky

sunrise 07:10 · sunset 19:59 · night 27° · evening 30° · rain 0.63 mm · humidity 50% · wind 5 m/s · clouds 100%

Monday7 September 2026

☀️31°clear sky

sunrise 07:11 · sunset 19:57 · night 26° · evening 29° · humidity 48% · wind 4 m/s · clouds 34%

Tuesday8 September 2026

☀️29°clear sky

sunrise 07:12 · sunset 19:56 · night 26° · evening 29° · rain 0.3 mm · humidity 55% · wind 4 m/s · clouds 100%

Wednesday9 September 2026

☀️29°clear sky

sunrise 07:13 · sunset 19:54 · night 26° · evening 28° · humidity 56% · wind 4 m/s · clouds 2%

Thursday10 September 2026

☀️28°clear sky

sunrise 07:14 · sunset 19:53 · night 26° · evening 28° · humidity 59% · wind 5 m/s · clouds 37%

Friday11 September 2026

🌧️28°light rain

sunrise 07:14 · sunset 19:51 · night 26° · evening 27° · rain 0.96 mm · humidity 66% · wind 4 m/s · clouds 3%

Saturday12 September 2026

☁️27°broken clouds

sunrise 07:15 · sunset 19:50 · night 26° · evening 27° · rain 3.75 mm · humidity 64% · wind 3 m/s · clouds 67%

Sunday13 September 2026

🌧️28°light rain

sunrise 07:16 · sunset 19:48 · night 26° · evening 26° · rain 0.84 mm · humidity 59% · wind 6 m/s · clouds 9%

Monday14 September 2026

☀️27°clear sky

sunrise 07:17 · sunset 19:47 · night 25° · evening 26° · rain 6.78 mm · humidity 64% · wind 5 m/s · clouds 100%

Tuesday15 September 2026

☀️27°clear sky

sunrise 07:18 · sunset 19:45 · night 25° · evening 26° · humidity 53% · wind 5 m/s · clouds 1%

Wednesday16 September 2026

🌧️27°light rain

sunrise 07:19 · sunset 19:44 · night 25° · evening 26° · rain 1.23 mm · humidity 69% · wind 8 m/s · clouds 61%

Thursday17 September 2026

🌧️26°light rain

sunrise 07:19 · sunset 19:42 · night 25° · evening 26° · rain 2.13 mm · humidity 61% · wind 5 m/s · clouds 6%

Friday18 September 2026

🌧️26°light rain

sunrise 07:20 · sunset 19:40 · night 25° · evening 26° · rain 0.27 mm · humidity 58% · wind 3 m/s · clouds 6%

Saturday19 September 2026

🌧️26°light rain

sunrise 07:21 · sunset 19:39 · night 24° · evening 25° · rain 1.23 mm · humidity 60% · wind 5 m/s · clouds 99%

Sunday20 September 2026

🌧️25°light rain

sunrise 07:22 · sunset 19:37 · night 25° · evening 25° · rain 0.66 mm · humidity 58% · wind 10 m/s

UV index in Zakynthos - is it safe to sunbathe?

Today the UV index in Zakynthos is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

Pollen in Zakynthos - info for allergy sufferers

Today ragweed pollen is highest in Zakynthos - about 7 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Sea temperature - Zakynthos

Water today

30°C

Week avg

30°C

Waves today

0.2 m

How's the water?

very warm

16-day sea temperature forecast:

5.09 30°C6.09 30°C7.09 30°C8.09 30°C9.09 30°C10.09 29°C11.09 29°C12.09 29°C13.09 28°C

Average sea temperature through the year:

Jan 18°CFeb 17°CMar 17°CApr 18°CMay 20°CJun 25°CJul 27°CAug 28°CSep 27°COct 24°CNov 22°CDec 19°C

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Zakynthos weather through the year

Upcoming public holidays in Greece: Ochi Day — 28 October · Christmas Day — 25 December · St. Stephen's Day — 26 December.

Nearby and related places

AndrosThessalonikiAthensThassosCreteSamos

FAQ - Zakynthos weather

What is the weather like in Zakynthos today?

Today it is about 32° during the day and 25° at night, clear sky.

How far ahead can I check the forecast for Zakynthos?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.