The short answer
For warm, dry weather and a boat trip along the coast, aim for June to September. Highs are 27.6°C to 30.7°C in those months, and rainfall stays between 5 and 25 mm. May is a milder alternative with 23.4°C and 17 mm of rain. October is still mild at 23.0°C but averages 147 mm of rain.
The best time to visit Zakynthos is a matter of preference, not a ranking. Heat lovers choose July and August. Visitors who prefer cooler days choose May or September. If you want to see Navagio from the water, the timing also depends on the rules for the bay, set out below. The Zakynthos boat tours page shows what the trips do there.
Season by season
Long-term monthly averages for Zakynthos, not a forecast for 2026.
| Season | Average high | Average rainfall per month | What it means for a visit |
|---|---|---|---|
| Winter, December to March | 14.4°C to 16.1°C | 90 to 170 mm | Cool and wet. No boat view of the Navagio bay. |
| Spring, April and May | 18.9°C and 23.4°C | 51 mm and 17 mm | Warming up. May suits sightseeing and walks. |
| Early summer, June | 27.8°C | 7 mm | Warm and dry. The 2026 viewing hours for boats start on 15 June. |
| High summer, July and August | 30.7°C and 30.6°C | 5 mm and 9 mm | Hottest and driest. Longest viewing hours, 8 a.m. to 9 p.m. until 15 September. |
| Early autumn, September | 27.6°C | 25 mm | Still warm. Viewing hours shorten from 16 September. |
| Late autumn, October and November | 23.0°C and 19.0°C | 147 mm and 159 mm | Mild but wet. The bay is closed to boats from November 2026. |
For most visitors who want both beach weather and a boat trip, June or September is the practical choice: warm, dry and inside the boat viewing hours. If you must travel in July or August, book the boat early in the stay so wind or swell does not use up your only day.
Our pick: the boat season
Boat trips in Laganas Bay run in the warmer months; this one includes hotel pickup.
Hand-picked tours, booked through GetYourGuide. Prices are indicative starting prices in euros (as of October 2026). Tap a tour for live availability and the current price in your currency.
Zakynthos boat tours and island trips
Coastal cruises, Blue Caves trips and island tours with live prices and availability. Check what each trip does at Navagio before you book.
Navagio by boat: the season
What the rules say for 2026.
15 June to 15 September
Boats may enter the marked sea zone off Navagio between 8 a.m. and 9 p.m. They come in from the north, leave in the south and stay up to 20 minutes. No more than 15 boats are in the zone at once, and until 3:30 p.m. ten of those places go to tourist passenger boats.
16 September to the end of the season
The hours shorten to 8 a.m. to 7 p.m. The other rules stay the same: a marked zone, up to 20 minutes, and no approach or anchoring within 50 m of the shoreline.
A viewing window is not a departure
The hours say when boats may be in the zone, not that a boat leaves every day. Wind and sea decide, and the skipper makes the call. Landing on the beach and swimming in the bay are not allowed in any month.
Is Navagio open? →Navagio in winter
The bay closes after the season.
From November 2026 the harbour authority bans ordinary boat traffic, approach, anchoring and swimming inside the bay until a new joint ministerial decision. Exceptions cover emergencies and certain official checks. Do not plan on the bay reopening automatically in spring. Dates for the next season depend on new decisions, so check the current rules shortly before you book.
The viewpoint above the bay is a separate question. Looking down from the existing platform is allowed only after protective works are finished, and opening on a given day is not certain. See the Navagio viewpoint page.
In the cold months, other parts of the island still make a trip: the old town, the coast and the caves that boats reach from other harbours. The things to do in Zakynthos page lists them.
Plan the rest of your trip
Pick the month, then check the details.
Best time to visit Zakynthos: frequently asked questions
What is the best month to visit Zakynthos?
For warm, dry weather, June and September are a balanced choice, with highs of 27.8°C and 27.6°C. July and August are hotter at around 30.7°C. It depends on how much heat you want.
When can I see Navagio from a boat?
In 2026 the harbour authority set viewing hours from 15 June, 8 a.m. to 9 p.m. until 15 September and 8 a.m. to 7 p.m. after that, to the end of the season. Boats stay up to 20 minutes. Check whether a trip runs before 15 June, and check for any departure on the day.
Can I visit Navagio in winter?
Not by boat. From November 2026 ordinary boat traffic, approach, anchoring and swimming in the bay are banned until a new joint ministerial decision. The bay does not reopen automatically.
Is it too cold to swim in May?
May averages a high of 23.4°C in the air. Check a current local forecast for the sea temperature. Swimming in the Navagio bay is not allowed in any month.
Is October a good time to go?
It is mild, with an average high of 23.0°C, but wetter than September: 147 mm of rain on average against 25 mm. Boat viewing hours still apply until the end of the season, subject to the sea.
Is this the official Navagio or Zakynthos website?
No. This is an independent travel guide. It is not the official site of Navagio, the Municipality of Zakynthos, the Greek Ministry of Culture or Visit Greece, and it is not connected to any tour operator, boat company or hotel.