How warm is the sea in Zakynthos?
The sea in Zakynthos is currently 24°C.
Sea temperature is a model estimate for the surface. We refresh marine data approximately every six hours; check the displayed data time.
The sea in Zakynthos is 24°C today, the weather is clear, 18°C.

Greece
Last updated:
Sources and methodologyToday Zakynthos can expect thunderstorms, with a high of around 22°. Over the coming days it cools slightly, with temperatures between 13° and 22°. Rain is possible: Thursday, Sunday, Monday.
Updated:
Next 48 hours
The best time to visit is from June to September. The sea is warmest in August (27.5°C).
| Month | Max | Min | Rain (days) | Sea |
|---|---|---|---|---|
| January | 12° | 8° | 15 | 17° |
| February | 13° | 8° | 10 | 17° |
| March | 14° | 9° | 12 | 17° |
| April | 17° | 11° | 6 | 17° |
| May | 21° | 15° | 7 | 19° |
| June | 26° | 19° | 3 | 24° |
| July | 30° | 22° | 1 | 27° |
| August | 30° | 23° | 2 | 28° |
| September | 26° | 20° | 6 | 26° |
| October | 22° | 17° | 8 | 24° |
| November | 17° | 13° | 14 | 22° |
| December | 14° | 10° | 13 | 19° |
Zakynthos is an Ionian island south of Kefalonia, known for its bright rocky shores, blue caves and turquoise sea. Its most recognisable feature is Navagio beach, with a shipwreck in a cove reachable only by boat, while the southern bay of Laganas is an important nesting ground for loggerhead sea turtles. The island combines dramatic scenery with a lively tourist scene. For Macedonian visitors it is reached by flight, most often on package trips. Summers are hot and dry, with August sea temperatures of around 27°, and the season runs from late May into October.
The sea in Zakynthos is currently 24°C.
Sea temperature is a model estimate for the surface. We refresh marine data approximately every six hours; check the displayed data time.
The best time to visit is from June to September. The sea is warmest in August (27.5°C).
Derived from the 2015–2024 climate averages.
Tomorrow in Zakynthos expect cloudy, with a high of 21°C and a low of 16°C.
The weekend forecast for Zakynthos: cloudy on Saturday (21°/15°), rain on Sunday (16°/13°).