SomaliaIsland

Koyama

5.7 km² of land in the Indian Ocean.

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

5.7km²

Area

26km

Coastline

42m

Highest point

29°C

Warmest sea

April

9km

To the mainland

When to go to Koyama

Best for the beach from January to March and in September.

The sea is warmest in April (29 °C) and coolest in August (25 °C). You can swim comfortably all year (21 °C or more).

27°29°25°

Jan2

27°29°25°

Feb1

28°30°26°

Mar5

29°30°28°

Apr17

28°29°27°

May20

27°28°26°

Jun15

26°27°25°

Jul9

25°27°24°

Aug7

26°28°25°

Sep5

26°28°26°

Oct10

28°29°26°

Nov16

28°29°26°

Dec10

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 Somalia

Koyama is an island in Somalia. It covers 5.7 km², with 26 km of coastline. Its highest point rises to 42 m. The nearest mainland is 9 km away.

Getting there

Manda Airport (LAU)nearest airport with scheduled flights · 239 km in a straight line
9 km from the mainlanddistance to the nearest continental coast
From January to March and Septemberbest months to go (from 30 years of averages)

Plan the trip

Ferries, stays and things to do

Car hire in SomaliaDiscover CarsSee

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 12 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.

Koyama6 km²

Capri10 km²

Manhattan54 km²

5 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)	29	29	30	30	29	28	27	27	28	28	29	29
Night low (°C)	25	25	26	28	27	26	25	24	25	26	26	26
Sea (°C)	27	27	28	29	28	27	26	25	26	26	28	28
Rain (mm)	6	2	15	89	154	84	44	25	18	47	69	35
Wet days	2	1	5	17	20	15	9	7	5	10	16	10
Sun h/day	9.5	9.8	9.9	9.0	8.1	7.5	7.8	8.5	9.0	9.1	8.9	9.3
Wind (km/h)	28	27	22	19	25	30	31	30	28	22	18	24

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	+1.4	+1.1	+1.4	+0.7	+0.5	+0.4	+0.5	+0.3	+0.1	+0.5	+0.5	+0.1
2021	−0.3	−0.1	−0.7	−0.1	−0.5	−0.1	+0.2	−0.1	±0.0	−0.1	+0.1	+0.4
2022	+0.3	−0.3	−0.4	±0.0	+0.1	+0.4	−0.3	−0.1	−0.2	−0.2	−0.4	±0.0
2023	−0.2	−0.5	−0.2	+0.4	+0.3	+0.3	+0.5	+0.5	+0.8	+0.9	+1.3	+1.7
2024	+1.4	+1.7	+1.9	+1.2	+0.4	+0.6	+0.9	+0.9	+0.9	+0.7	+0.7	−0.1
2025	−0.3	−0.6	−0.1	+0.7	+0.5	+0.6	+0.3	+0.1	+0.4	+0.2	−0.1	+0.2

+1 warmer than usual −1 cooler than usual

Nearby

More islands nearby.

Juula

Somalia5.0 km²27 m52 km away

Pate Island

Kenya80 km²18 m216 km away Lamu Island

Kenya57 km²18 m245 km away

About these numbers

Names, area, population	Wikidata (Q6435129) · 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