Zakynthos weather in September
September in Zakynthos: warm, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Zakynthos · #401 of 897 destinations to visit in September · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
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Zakynthos climate normals — September
| Daytime high | 26°C / 79°F | 🌤 warm |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Rainfall | 69 mm / 2.7 in | 🌦 some rain |
| Rainy days | 5 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 19°C / 66°F | |
| Sunshine | 10.8 h/day | |
| Daylight | 12.4 h | |
| Wind | 24 km/h / 15 mph | |
| Air quality (US AQI) | 50 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Zakynthos in September — FAQ
- Is September a good time to visit Zakynthos?
- September in Zakynthos: warm, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Zakynthos on SeasonMap's comfort score (85/100).
- What is the weather like in Zakynthos in September?
- In September, Zakynthos averages a daily high of 26.2°C and a low of 23.2°C, with about 68.8 mm of rain over roughly 5 rainy days.
- What is the air quality in Zakynthos in September?
- Zakynthos has a mean US Air Quality Index of about 50 in September.