Greece
Zakynthos in September: weather, sea & travel advice
This month's data profile
Sea conditions lead
Zakynthos in September is climatically well suited to family holidays, beach holidays, city breaks and active holidays and hiking. The average daily high is around 26 °C, and the sea is about 25 °C. With about 8 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
89/100 · #2
Warmth
#3
Dryness
#6
Sun
#6
Sea warmth
#2
Published best categories: Overall, Beach, City break, Family
Zakynthos · SeptemberPhoto: dronepicr · CC BY 2.0Climate facts
- Average high
- 26 °C
- Average low
- 23 °C
- Sea
- 25 °C
- Rainy days (est.)
- 8 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 69 %
For your trip planning
September: among the best months, but wetter than August
September is one of the best months on Zakynthos in our series. Compared with August, average daily highs ease from 29 °C to 26 °C, and it gets about four times the rain, while October is cooler and wetter again. At 25 °C, the sea still makes swimming plausible, especially on the drier days.
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| August | 29 | 25 | 4 | 15 | 8.4 | 68 | 3.3 | 26 | 87 |
| September (selected) | 26 | 23 | 8 | 63 | 6.4 | 69 | 3.6 | 25 | 89 |
| October | 22 | 20 | 10 | 91 | 4.5 | 72 | 4.0 | 23 | 80 |
How do the previous and next months compare?
Baseline: September (89/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| August | -2 | +3.2 °C | +2.2 °C | -4.3 | -47.3 mm | +2 h | -0.5 % | -0.3 m/s | +1 °C |
| October | -9 | -3.4 °C | -3.2 °C | +2 | +28.7 mm | -1.9 h | +3.3 % | +0.4 m/s | -2.2 °C |
All twelve months in context
Find a place to stay
Where to stay in Zakynthos
Compare available stays, prices and cancellation terms for Zakynthos on Booking.com.
Booking.comFind places to stayAffiliate link: there is no extra cost to you.
Useful next decisions
Frequently asked questions
How warm is Zakynthos in September?
The average daily high is around 26 °C, with an average daily low of about 23 °C.
Can you swim in Zakynthos in September?
The sea is about 25 °C (warm).
Does it rain a lot in Zakynthos in September?
The curated estimate is about 8 rainy days per month, not a directly measured long-term average. Total precipitation averages around 63 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Zakynthos?
By the climate score, June, July, August and September are the strongest months for Zakynthos. For a beach trip: June, July, August and September. September is one of them.