ZakynthosPhoto: dronepicr · CC BY 2.0Greece · Europe
Best time to visit Zakynthos
Zakynthos is known for turquoise water and Navagio beach. Summers are hot and dry, the sea warm into October; more rain falls in winter. The best time to visit is May to October.
Climate decision
Best travel months for Zakynthos
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Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
July · Mean daily maximum
30.1 °C
1991–2025: 28.2 °C
+1.9 °C · higher
August · Wet days
6.4 days/month
1991–2025: 3.6 days/month
+2.8 days/month · higher
May · Monthly precipitation
39.5 mm/month
1991–2025: 27.6 mm/month
+11.9 mm/month · higher
August · Sea temperature
27.1 °C
1991–2025: 26.1 °C
+1.1 °C · higher
July: 77/155 days at or above 30 °C; highest single value 36.6 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Coast and sea
Zakynthos: the swimming season follows two curves
Average daily highs vary by 15.3 °C through the year, while the sea varies by 10.7 °C. Air and water temperature should therefore be considered separately.
The practical difference
The month with the highest daytime temperature and the month with the warmest sea need not define the same travel window. Rain and sunshine help resolve the trade-off.
Warmest sea
August · 26.1 °C
Highest average daily high
August · 29 °C
Fewest rainy days
July · 1.5
Most sunshine
June · 9.5 h
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| January | 14 | 11 | 13 | 107 | 2.6 | 75 | 5.0 | 16 | 38 |
| February | 14 | 11 | 11 | 81 | 3.7 | 75 | 5.0 | 15 | 41 |
| March | 15 | 12 | 11 | 71 | 5.4 | 76 | 4.5 | 15 | 47 |
| April | 17 | 14 | 7 | 41 | 6.9 | 76 | 3.9 | 16 | 62 |
| May | 21 | 18 | 5 | 28 | 8.4 | 76 | 3.3 | 19 | 79 |
| June | 25 | 22 | 3 | 14 | 9.5 | 73 | 3.0 | 22 | 92 |
| July | 28 | 24 | 2 | 8 | 9.5 | 70 | 3.3 | 25 | 89 |
| August | 29 | 25 | 4 | 15 | 8.4 | 68 | 3.3 | 26 | 87 |
| September | 26 | 23 | 8 | 63 | 6.4 | 69 | 3.6 | 25 | 89 |
| October | 22 | 20 | 10 | 91 | 4.5 | 72 | 4.0 | 23 | 80 |
| November | 19 | 17 | 13 | 136 | 2.9 | 74 | 4.8 | 21 | 59 |
| December | 15 | 13 | 14 | 138 | 2.2 | 75 | 5.0 | 18 | 42 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
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Where to stay in Zakynthos
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Frequently asked questions
When is the best time to visit Zakynthos?
The strongest climate months are June, July, August, September. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Zakynthos?
The average daily maximum temperature in Zakynthos is highest in August at around 29 °C.
When is the sea warmest at Zakynthos?
In August, at around 26 °C.