Skip to content
islandyas
EN

Estonia EstoniaIsland

Aegna

3.0 km² of land in the Gulf of Finland.

When to go

Aegna seen from space, cut out from the sea (Sentinel-2)
N 0.5 km

Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.

In numbers

3.0km²

Area

10km

Coastline

29m

Highest point

11

People

17°C

Warmest sea

August

2km

To the mainland

When to go to Aegna

Best to visit from July to August.

The sea is warmest in August (17 °C) and coolest in March (1 °C). The water never reaches 21 °C: bring a wetsuit.

Sea temperature (the water level) Air: night low to afternoon high Wet days Best months

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 Estonia

Aegna is an island in Estonia. It covers 3.0 km², with 10 km of coastline. Its highest point rises to 29 m. About 11 people live on it. The nearest mainland is 2 km away.

Read more on Wikipedia

Getting there

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 Aegna.

  • 15beachesPõhjarand, Hallikivi rand, Mustamäe rand and 12 more
  • 1lighthousesAegna sadamakai tulepaak
  • 1marinasPort of Aegna
  • 3ruins and archaeological sitesSauna, Komandopunkt, Rannakaitsepatarei varemed
  • 2campsitesPõhjarand
  • 1restaurants, 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 15 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.

Aegna3 km²
Capri10 km²

2 km

All outlines drawn to the same scale (Natural Earth and OpenStreetMap).

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)-2-3061317212016940
Night low (°C)-6-7-4161115151151-3
Sea (°C)21126121617151174
Rain (mm)524240404872657257716857
Wet days131110101012131412141515
Sun h/day0.11.54.97.29.69.18.97.34.51.90.00.0
Wind (km/h)252322201819181923242627

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.

JanFebMarAprMayJunJulAugSepOctNovDec
2020+2.3+2.9+2.7+2.0+0.7+2.7−0.1+0.2+0.4+1.0+2.0+1.7
2021+0.6−0.4−0.1+0.7+0.1+4.1+4.6−0.4−1.3−0.4+0.5−0.4
2022−0.7+0.2+0.7+0.5−0.5+0.8+1.2+1.6−0.4−0.1+0.5+0.2
2023+0.2+0.6+0.4+0.1+1.0+1.7−0.2+0.7+2.3+2.1+0.7−0.3
2024−0.6−0.3+0.2−0.3+1.4+3.1+1.8+1.8+3.1+2.5+1.9+1.7
2025+1.7+1.0+0.8+1.1+0.7+0.4+0.3+0.3+1.3+1.4+2.1+2.0

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Suur salm between Aegna and Krasuli Islands Tallinn Bay Tallinn 20 May 2016
Pjotr Mahhonin · CC BY-SA 4.0
Aegna Island Kesklinn Tallinn 20 May 2016
Pjotr Mahhonin · CC BY-SA 4.0
Aegna kivilabürint
Ilme Parik · CC BY-SA 3.0
Aegna sadam
Ivo Kruusamägi · CC BY-SA 4.0

About these numbers

Names, area, populationWikidata (Q380699) · CC0
Outline© OpenStreetMap contributors · ODbL
Sea temperatureNOAA OISST v2.1 · 1991–2020
ClimateNASA POWER · 1991–2020
Relief, 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
Beaches, ports, lighthouses, trails© OpenStreetMap contributors · ODbL
TownsGeoNames · CC BY 4.0
ImagesEOX 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.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.You are here
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit