France
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
3.1km²
Area
16km
Coastline
14m
Highest point
458
People
16°C
Warmest sea
August
2km
To the mainland
When to go to Île de Batz
Best to visit from July to August.
The sea is warmest in August (16 °C) and coolest in March (10 °C). The water never reaches 21 °C: bring a wetsuit.
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island in France
Île de Batz is an island in France. It covers 3.1 km², with 16 km of coastline. Its highest point rises to 14 m. About 458 people live on it. The nearest mainland is 2 km away.
Getting there
- Brest Bretagne airport (BES)nearest airport with scheduled flights · 45 km in a straight lineCar hire at BES airport (Brest)Discover Cars · Affiliate link↗
- FerriesRoscoff - Île de Batz, Barge Roscoff - Île de Batz
- 2 km from the mainlanddistance to the nearest continental coast
- From July to Augustbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
On the island
What you find on Île de Batz.
- 24beachesPorz Adelig, Porz Du, Porz Kavou and 21 more
- 7viewpointsPenn ar C'hleger, Le Roc'h, Rochers des Adieux and 4 more
- 1lighthousesPhare de l'île de Batz
- 1ferry terminals
- 1castles and fortsFort de Beg Séac'h
- 10ruins and archaeological sitesFour à Soude, Menhir de Porz ar Roc'h, Menhir de Kreach ar Bolloch (A) and 7 more
- 2campsitesTerrain d'Hébergement de Plein Air, Auberge de jeunesse
- 6hotels, guesthouses and apartments
- 12restaurants, cafés and bars
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
The shape of the land.
On average the island stands 14 m above the sea. 100 % of it is below 200 m.
- 100 %0–50 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
2 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 9 | 9 | 11 | 14 | 16 | 20 | 22 | 22 | 20 | 16 | 12 | 9 |
| Night low (°C) | 4 | 3 | 4 | 6 | 8 | 11 | 13 | 13 | 11 | 9 | 7 | 4 |
| Sea (°C) | 11 | 10 | 10 | 11 | 12 | 14 | 15 | 16 | 15 | 15 | 14 | 12 |
| Rain (mm) | 97 | 82 | 64 | 53 | 55 | 53 | 53 | 56 | 44 | 93 | 105 | 104 |
| Wet days | 17 | 14 | 13 | 12 | 12 | 10 | 11 | 11 | 11 | 16 | 17 | 17 |
| Sun h/day | 1.8 | 3.1 | 4.4 | 6.6 | 7.3 | 7.6 | 7.7 | 6.7 | 6.2 | 3.7 | 2.3 | 1.7 |
| Wind (km/h) | 22 | 22 | 21 | 18 | 18 | 17 | 17 | 17 | 17 | 19 | 21 | 22 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +0.3 | +0.6 | +0.6 | +0.5 | +0.7 | +0.7 | +0.6 | +0.8 | +0.6 | −0.3 | −0.3 | +0.4 |
| 2021 | +0.2 | +0.2 | +0.4 | −0.2 | −0.3 | +0.7 | −0.6 | ±0.0 | +0.6 | +0.3 | +0.4 | +0.3 |
| 2022 | +0.3 | +0.5 | +0.7 | +0.8 | +1.2 | +0.6 | +0.3 | +0.1 | −0.1 | ±0.0 | +0.5 | +0.6 |
| 2023 | +0.8 | +0.4 | +0.6 | +0.5 | +0.6 | +1.0 | +0.7 | +0.4 | +0.9 | +0.8 | +0.9 | +0.8 |
| 2024 | +0.7 | +1.0 | +1.4 | +1.4 | +1.2 | +0.9 | +0.5 | +0.5 | ±0.0 | +0.2 | +0.6 | +0.6 |
| 2025 | +0.6 | +0.5 | +0.8 | +1.2 | +1.1 | +1.4 | +1.1 | +0.6 | −0.1 | +0.6 | +0.4 | +0.5 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
Guernsey
About these numbers
| Names, area, population | Wikidata (Q292275) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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