Weather in Zakynthos for September 2025
Until now, September 2025 in Zakynthos has been nearly identical to the historical average, with a temperature of 26.4 °C (showing only a slight deviation of -0.4 °C).
Expect cooler weather in the next days in Zakynthos with the forecast suggesting a temperature of 25.4 °C, lower than the historical average.
In general, the average temperature in Zakynthos at the beginning of September is 27 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 24.6 °C by the end of September.
The climate of Zakynthos in September is notably wet, with an average of 14 rainy days, and a total of 52.2 mm of precipitation.
Is September a good time to visit Zakynthos? check out the best time to travel to Zakynthos page.
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Zakynthos Weather September
Temperatures trend during September in Zakynthos
September weather in Zakynthos day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 27° /23° | 0 mm | 7 | |
| 2 Sept. | Sunny | 27° /23° | 0 mm | 7 | |
| 3 Sept. | Sunny | 28° /24° | 0 mm | 6 | |
| 4 Sept. |  Patchy rain possible | 27° /23° | 2.1 mm | 7 | |
| 5 Sept. | Sunny | 26° /22° | 1.9 mm | 6 | |
| 6 Sept. | Sunny | 27° /23° | 2.1 mm | 7 | |
| 7 Sept. | Light rain shower | 27° /23° | 1.2 mm | 6 | |
| 8 Sept. | Sunny | 27° /23° | 0 mm | 7 | |
| 9 Sept. | Sunny | 26° /23° | 0.9 mm | 7 | |
| 10 Sept. | Sunny | 26° /22° | 5.7 mm | 7 | |
| 11 Sept. | Sunny | 27° /23° | 1.2 mm | 7 | |
| 12 Sept. | Sunny | 26° /23° | 0.8 mm | 7 | |
| 13 Sept. | Sunny | 27° /23° | 0.6 mm | 7 | |
| 14 Sept. |  Partly cloudy | 25° /22° | 0.4 mm | 6 | |
| 15 Sept. | Sunny | 27° /24° | 0 mm | 1.7 | |
| 16 Sept. | Sunny | 27° /24° | 0 mm | 1.7 | |
| 17 Sept. | Sunny | 26° /23° | 0 mm | 1.6 | |
| 18 Sept. | Patchy rain possible | 26° /24° | 3 mm | 1.7 | |
| 19 Sept. | Patchy rain possible | 26° /21° | 1.3 mm | 2 | |
| 20 Sept. | Sunny | 25° /22° | 0 mm | 6 | |
| 21 Sept. | Sunny | 25° /21° | 0 mm | 6 | |
| 22 Sept. | Sunny | 25° /22° | 0 mm | 6 | |
| 23 Sept. | Sunny | 25° /22° | 0 mm | 6 | |
| 24 Sept. | Sunny | 25° /22° | 0 mm | 6 | |
| 25 Sept. | Sunny | 25° /22° | 0 mm | 6 | |
| 26 Sept. | Sunny | 25° /23° | 0 mm | 6 | |
| 27 Sept. | Patchy rain possible | 26° /23° | 4.4 mm | 5 | |
| 28 Sept. | Patchy rain possible | 23° /22° | 1.6 mm | 5 | |
| 29 Sept. | Patchy rain possible | 24° /21° | 1.3 mm | 5 | |
| 30 Sept. | Patchy rain possible | 24° /21° | 0.4 mm | 6 | |
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Zakynthos weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Sunny |
| Temperatures | 29°/25° | 25°/22° | 23°/20° |
| Rainfall | 5 mm | 52 mm | 21 mm |
| Wind | 20.6 km/h | 20.9 km/h | 17.6 km/h |
| Humidity | 67% | 66% | 67% |
| Rainy days | 3 days | 14 days | 4 days |
| Dry days | 28 days | 16 days | 27 days |
Planning a trip to Zakynthos? Discover the best time to visit
Zakynthos in September - FAQ
Zakynthos water temperatures in September
The average water temperature of the Mediterranean Sea near Zakynthos in September is 24.2 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Zakynthos in September?
- The average water temperature in Zakynthos in September is 24.2 °C.
- Can you swim in Zakynthos in September?
- Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.
What to pack to Zakynthos in September?
As you prepare for your trip to Zakynthos in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Zakynthos, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Zakynthos
UV exposure in Zakynthos during September
Quick links
Where is Zakynthos?Get accurate weather forecasts for Zakynthos, located at latitude 37.788 and longitude 20.767. Stay updated with localized weather information tailored for Zakynthos.