Name: Eretria
Address: GR

Overview

Eretria is a spot in the South Euboean Gulf, on the west coast of central Evia, facing the mainland. This historic site (ancient Greek city) offers a very protected body of water in one of Greece's narrowest straits, a few kilometers south of the famous Chalkida (Euripos) passage where the strait is only 40 meters wide.

Conditions are ideal for beginners and progression thanks to very flat water and moderate winds. The dominant wind is channeled NW/NNW in the gulf, arriving onshore to side-onshore on this coast.

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Spot forecast for Eretria

Sunrise 07:38 · Sunset 18:40

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< 7 kn7–12 kn13–20 kn21–30 kn31–40 kn41+ kn Gusts Your minimum: 7 kn

Forecasts provided by Open-Meteo

Eretria: when to go?

Rideable days and hours computed for a minimum wind of 7 knots · log in to set your own (foil, twin-tip…)

Season · peak

134h

in April · 16.5 rideable days

Wind is uneven from month to month: the best months are August, July and April, at 19 rideable days and 28 °C. The low point is February, at 8.5 days.

Rideable days per month

Wind strength when it is rideable

7-12 knots · 90%13-20 knots · 9%21-30 knots · under 1%

When the spot works, wind sits mostly between 7 and 12 knots — 90% of rideable hours. Big-kite territory. The coldest month is February, at 13 °C. The wettest month is December, with 93 mm.

Monthly averages: Eretria

Monthly averages — Eretria — averaged over 2 years of records — Weather data by Open-Meteo.com — How it is calculated
Month	Rideable days	Usable wind	Temperature	Rain
January	13.5	97 h	14 °C	68 mm
February	8.5	73 h	13 °C	46 mm
March	15.0	112 h	17 °C	30 mm
April	16.5	134 h	20 °C	22 mm
May	15.5	130 h	24 °C	16 mm
June	13.0	55 h	31 °C	1 mm
July	19.5	110 h	33 °C	3 mm
August	20.5	156 h	31 °C	2 mm
September	13.0	103 h	28 °C	7 mm
October	13.5	98 h	23 °C	11 mm
November	13.5	101 h	19 °C	31 mm
December	15.0	104 h	14 °C	93 mm

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Technical details of Eretria spot

The spot works with winds from ESE, SE, SSE, S, SSW, SW, WSW, W, WNW, NW, NNW.

Rideable Not rideable

Spot functioning

The spot works from May to October thanks to channeled NW/NNW wind and thermal breezes. Ultra-flat water perfect for learning and progression. Conditions are very different from Evia's east coast — here it's gentle and protected. Ideal for kite lessons, wingfoil, and paddle.

Spot opening date · Required level

Spot opening date: Open all year round
Required level: Beginner

On the water

Very flat, protected water of the South Euboean Gulf. Fetch is extremely limited by the strait width (only a few kilometers), guaranteeing smooth water even in moderate wind. Sandy and muddy bottom in places, very progressive depth. Calm, warm water in summer (25-28°C in this semi-enclosed gulf).

Parking

Eretria is a small tourist town with public parking. Parking along the waterfront and adjacent streets. Frequent ferry from Oropos on the mainland (20-minute crossing), providing easy access from Athens. In high season, the town is lively but parking remains accessible.

Wind specificities

Wind is channeled in the South Euboean Gulf, arriving mainly from NW/NNW. The narrowness of the strait and surrounding mountains create a moderate channeling effect, with typical winds of 10-18 knots in summer. Wind is generally steadier and lighter than on the island's east coast (exposed to direct Meltemi).

Thermal breeze from W/SW develops some afternoons, offering gentle, steady conditions ideal for beginners.

Hazards

Tidal current in the Euripos strait (unique phenomenon: current changes direction approximately every 6 hours). Ferry traffic between Eretria and Oropos — stay clear of the ferry route. Muddy bottom in places, not ideal for walking barefoot. Pleasure boat traffic in summer.

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Eretria kitesurf, wingfoil and windsurf spot