Which side of Alonissos is sheltered from today's wind? 39 beaches ranked live, updated every 2 hours.
From us
Tavernas, cafés, sunbed rentals and shops: a basic listing on these pages is free.
At a glance
Most beaches face south (13). Wind from that side reaches them first; wind from the opposite side leaves them sheltered.
Shelter by wind direction
Wind direction decides everything. These are the Alonissos beaches that stay most sheltered, and the ones that get roughest, in a strong wind (6 Bft) from each direction. It is computed from how much open sea lies upwind of each beach.
Roughest
Roughest
Roughest
Roughest
Beach guides
A guide for every kind of beach, each one re-ranked live for today's wind.
Sea temperature
The average temperature of the sea near the beaches of Alonissos, from 30 years of satellite measurements (NOAA, 1991–2020).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sept | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 14° | 14° | 14° | 15° | 18° | 23° | 25° | 26° | 24° | 21° | 18° | 16° |
The sea is 22 °C or warmer from June to September, and warmest in August, at about 26 °C.
Sea temperature: NOAA OISST v2.1, average of 1991–2020 (public domain). Close to the shore the water can be a degree or two warmer or cooler.
Best time to go
Alonissos is busiest in August. In May, June, September, and October there are about half as many visitors, or fewer. For a flat sea and fewer people, the best months are June and September.
In the swimming season (May to October) the least windy month on Alonissos is June, with an average wind of 13 km/h. The windiest is October, at 17 km/h. The wind is usually lighter in the morning and builds up in the afternoon, so go early on windy days.
Average conditions for every month near Alonissos, from 25 years of satellite-based weather data (2001–2025). Wind is the average at 10 m height; the sea close to the shore can differ.
| Month | Wind | Temp | Sea | Rain (mm/day) | Visitors |
|---|---|---|---|---|---|
| January | 21 km/h N | 11° | 14 °C | 2.3 | Quiet |
| February | 21 km/h N | 11° | 14 °C | 2.4 | Quiet |
| March | 18 km/h N | 12° | 14 °C | 2.0 | Quiet |
| April | 15 km/h N | 15° | 15 °C | 1.3 | Quiet |
| May | 13 km/h N | 19° | 18 °C | 0.8 | Moderate |
| June | 13 km/h N | 24° | 23 °C | 0.9 | Moderate |
| July | 14 km/h N | 26° | 25 °C | 0.6 | Busy |
| August | 16 km/h N | 26° | 26 °C | 0.6 | Peak |
| September | 16 km/h N | 23° | 24 °C | 1.7 | Moderate |
| October | 17 km/h NE | 19° | 21 °C | 2.1 | Quiet |
| November | 18 km/h N | 16° | 18 °C | 2.1 | Quiet |
| December | 21 km/h N | 12° | 16 °C | 2.8 | Quiet |
Historical data: NASA POWER, CC BY 4.0. Visitor levels are nights spent in tourist accommodation in the Thessaly region (Eurostat, average of 2023–2025), compared with its busiest month. They show when the area is busy, not how many people are on a given beach.
Average conditions for November near Alonissos, from 25 years of satellite-based weather data (2001–2025).
On average 18 km/h and 16° in November. Least windy year on record: 2002 · windiest: 2018.
| Year | Wind | Temp | Rain (mm/day) |
|---|---|---|---|
| 2025 | 16 km/h S | 17° | 2.3 |
| 2024 | 20 km/h NE | 16° | 3.1 |
| 2023 | 20 km/h W | 18° | 0.9 |
| 2022 | 20 km/h NE | 17° | 3.4 |
| 2021 | 19 km/h NE | 16° | 1.9 |
| 2020 | 22 km/h NE | 16° | 2.0 |
| 2019 | 16 km/h S | 18° | 3.6 |
| 2018 | 23 km/h NE | 15° | 3.0 |
| 2017 | 15 km/h SW | 15° | 3.9 |
| 2016 | 17 km/h N | 15° | 2.1 |
| 2015 | 18 km/h NW | 17° | 1.1 |
| 2014 | 16 km/h NE | 15° | 1.5 |
| 2013 | 19 km/h E | 16° | 1.6 |
| 2012 | 20 km/h NE | 17° | 2.4 |
| 2011 | 21 km/h NE | 12° | 0.1 |
| 2010 | 16 km/h SW | 17° | 0.9 |
| 2009 | 15 km/h W | 16° | 0.9 |
| 2008 | 17 km/h NE | 15° | 1.3 |
| 2007 | 19 km/h N | 14° | 1.9 |
| 2006 | 18 km/h N | 14° | 0.8 |
| 2005 | 18 km/h NE | 14° | 4.1 |
| 2004 | 20 km/h N | 15° | 0.8 |
| 2003 | 17 km/h NE | 15° | 1.3 |
| 2002 | 14 km/h NW | 16° | 3.5 |
| 2001 | 22 km/h N | 15° | 3.6 |
Every beach
39 beaches mapped. The most sheltered first, then every other beach with a name; each one opens its own page.
In a strong north wind the beaches of Alonissos facing south and south-east stay most sheltered: Agios Petros, Chrysi Milia, and Elias Cove. Beaches facing north are exposed to it.
For every beach we measured how much open sea lies in each of 16 compass directions, using OpenStreetMap coastlines. Waves build over open water, so a beach with land close by in the direction the wind comes from is sheltered. Today's wind forecast from MET Norway is then applied, and the result is refreshed every 2 hours.
They are estimates. The model does not include swell from distant storms, and local gusts can be stronger than forecast. Always follow lifeguard flags and local warnings.
The direction more than the strength. A beach is rough when the wind blows from the open sea towards it and flat when land lies upwind, so on a windy day one side of Alonissos can be flat while the other has waves. That is why this page lists the most sheltered and the roughest beaches for each wind direction, and the live ranking above applies today's forecast.
In the swimming season (May to October) the least windy month on Alonissos is June, with an average wind of 13 km/h. The windiest is October, at 17 km/h. The wind is usually lighter in the morning and builds up in the afternoon, so go early on windy days.
Alonissos is busiest in August. In May, June, September, and October there are about half as many visitors, or fewer. For a flat sea and fewer people, the best months are June and September.
The sea is 22 °C or warmer from June to September, and warmest in August, at about 26 °C.
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