Harmil

20.6 km² of land in the Red Sea.

N 1 km

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

In numbers

20.6km²

Area

35km

Coastline

Highest point

People

32°C

Warmest sea

September

103km

To the mainland

When to go to Harmil

Best for the beach from November to March.

The sea is warmest in September (32 °C) and coolest in February (26 °C). You can swim comfortably all year (21 °C or more).

26°26°25°

Jan1

26°26°25°

Feb0

27°27°26°

Mar1

28°29°28°

Apr5

30°31°29°

May4

30°32°30°

Jun0

31°33°32°

Jul2

32°33°32°

Aug5

32°33°32°

Sep4

32°32°31°

Oct4

29°30°29°

Nov2

28°28°27°

Dec1

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 Eritrea

Harmil is an island in Eritrea. It belongs to Dahlak Archipelago. It covers 20.6 km², with 35 km of coastline. Its highest point rises to 9 m. Nobody lives on it. The nearest mainland is 103 km away.

Getting there

Asmara International Airport (ASM)nearest airport with scheduled flights · 191 km in a straight line
103 km from the mainlanddistance to the nearest continental coast
From November to Marchbest months to go (from 30 years of averages)

Plan the trip

Ferries, stays and things to do

Car hire in EritreaDiscover CarsSee

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The shape of the land.

On average the island stands 3 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.

Harmil21 km²

Manhattan54 km²

Santorini76 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)	26	26	27	29	31	32	33	33	33	32	30	28
Night low (°C)	25	25	26	28	29	30	32	32	32	31	29	27
Sea (°C)	26	26	27	28	30	30	31	32	32	32	29	28
Rain (mm)	3	4	3	17	10	2	12	25	17	10	9	5
Wet days	1	0	1	5	4	0	2	5	4	4	2	1
Sun h/day	6.9	7.6	8.6	9.7	9.9	9.2	8.2	8.2	8.7	9.1	8.6	8.0
Wind (km/h)	19	18	17	16	14	17	17	15	13	14	19	19

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	+0.4	±0.0	−0.1	±0.0	+0.8	+0.1	−0.3	−0.1	+0.9	+0.7	+0.6	+0.9
2021	+0.3	+0.4	+0.6	+0.3	+0.5	+0.8	+0.1	+0.4	+0.1	±0.0	+0.7	+0.7
2022	+0.6	+0.5	+0.2	+0.5	+0.2	+0.4	+0.3	+0.4	+0.7	+0.6	+0.1	−0.3
2023	+0.5	+0.7	+0.6	+0.3	+0.8	+1.2	+1.0	+1.5	+1.2	+1.5	+0.9	+0.4
2024	+1.0	+0.9	+1.2	+0.8	+0.7	+0.6	+1.5	+1.3	+0.8	+0.5	+0.9	+1.4
2025	+0.7	+0.9	+0.5	±0.0	−0.2	+0.6	+0.9	+0.7	+0.5	−0.1	+0.2	−1.3

+1 warmer than usual −1 cooler than usual

Nearby

More islands nearby.

Nora

Eritrea101 km²37 m59 km away

Dahlak Kebir

Eritrea642 km²123 m96 km away

Kamaran

Yemen108 km²14 m291 km away

Zuqar Island

Yemen120 km²524 m393 km away

About these numbers

Names, area, population	Wikidata (Q45569) · 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