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Japan JapanIsland

Etajima

91.3 km² of land in the Seto Inland Sea.

When to go

Etajima Island. - panoramio
柳田亮 · CC BY-SA 3.0

In numbers

91.3km²

Area

318m

Highest point

21,557

People

26°C

Warmest sea

August

309km

To the mainland

When to go to Etajima

Best for the beach from July to October.

The sea is warmest in August (26 °C) and coolest in February (13 °C). Comfortable swimming (21 °C or more): from July to October.

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

Etajima is an island in Japan. It covers 91.3 km². Its highest point rises to 318 m. About 21,557 people live on it. The nearest mainland is 309 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.

The shape of the land.

On average the island stands 77 m above the sea. 98 % of it is below 200 m.

  • 38 %0–50 m
  • 59 %50–200 m
  • 2 %200–500 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).

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)91013182225283027221711
Night low (°C)44610151923242117126
Sea (°C)151313151720242625232017
Rain (mm)56761081281522422681381811197774
Wet days89111111151514131089
Sun h/day3.33.95.16.06.54.74.96.45.15.14.13.0
Wind (km/h)16151513119101012141415

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
2020−0.2−0.5−0.7−0.9−0.5+0.3−0.4+0.3+0.8+0.3+0.6−0.2
2021−2.3−1.3−2.2−0.5+0.4+0.8+0.5+1.1+1.2+0.5±0.0−0.1
2022−1.3−2.2−1.7−0.9−0.6−0.7+0.3+0.7+1.3+0.9+0.5+0.3
2023−1.1−1.3−1.0−0.3−0.3−0.6−0.6+0.3+0.9+0.5+0.9+0.5
2024−0.4−1.0−1.7+0.1−0.2−0.2+0.3+1.1+2.4+1.6+0.9−0.2
2025−1.5−2.5−2.1−1.6−1.0−0.4+0.6+0.6+1.5+1.4+0.4+0.2

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Etajimacho Kokuyumubanchi, Etajima, Hiroshima Prefecture 737-2123, Japan - panoramio (5)
Fumihiko Ueno · CC BY 3.0
Okimicho Okadaio, Etajima, Hiroshima Prefecture 737-2311, Japan - panoramio
田村淳 · CC BY 3.0
Okimicho Okadaio, Etajima, Hiroshima Prefecture 737-2311, Japan - panoramio (1)
田村淳 · CC BY 3.0

About these numbers

Names, area, populationWikidata (Q169589) · CC0
OutlineNatural Earth · public domain
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

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

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