Skip to content
islandyas
EN

United States United StatesHawaiian IslandsVolcanic island

Kahoolawe

115 km² of land in the Pacific Ocean.

When to go

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

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

In numbers

115km²

Area

64km

Coastline

452m

Highest point

0

People

27°C

Warmest sea

September

3,845km

To the mainland

When to go to Kahoolawe

Best for the beach from May to September.

The sea is warmest in September (27 °C) and coolest in February (24 °C). You can swim comfortably all year (21 °C or more).

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 Maui County, Hawaii

Kahoolawe is an volcanic island in United States. It belongs to Hawaiian Islands. It covers 115 km², with 64 km of coastline. Its highest point rises to 452 m. Nobody lives on it. The nearest mainland is 3,845 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 Kahoolawe.

  • 6beachesHaikioawa Landing and 5 more
  • 1lighthousesSouthernmost Point Light
  • 7named peaksBM 855, Black 2, Pu'u Moiwi and 4 more
  • 1volcanoesPu'u Moa'ulanui
  • 3ruins and archaeological sitesAhupū Tank
  • 1campsites

Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.

Cross-checked with our atlases

Kahoolawe in our other atlases

Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Kahoolawe, each with its own numbers.

  • 4beaches and covesCoastya
  • 3mountainsPeakyas
  • Beach with the warmest sea

    26.9°C

    Kaukaukapapa Beach

    sea in the warmest month · according to Coastya

4 beaches

on Coastya, the beach atlas

  1. Kaukaukapapa Beach26.9°C
  2. Kaulana Beach26.9°C
  3. Honukanaenae26.9°C
  4. Hanakanae‘a Beach26.9°C

Open Coastya ↗

3 mountains

on Peakyas, the mountain atlas

  1. Puʻu ʻO Moaʻula Iki
  2. Puʻulaʻi
  3. Puʻumōiwi

Open Peakyas ↗

The shape of the land.

On average the island stands 188 m above the sea. 54 % of it is below 200 m.

  • 14 %0–50 m
  • 41 %50–200 m
  • 46 %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).

Size, for real

Next to islands you may know.

Kahoolawe115 km²
Malta247 km²
Santorini76 km²

10 km

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

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)252425252627282828282726
Night low (°C)232323242425262626262524
Sea (°C)252424252526262727272625
Rain (mm)676891483726283833546776
Wet days101013976688101211
Sun h/day7.88.07.99.19.810.210.210.09.48.37.67.2
Wind (km/h)181919211821222119182020

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+0.7+0.5+0.3+0.5+0.5+0.4+0.6+0.2+0.2+0.8+0.8+1.1
2021+1.0+0.9+0.4+0.2+0.3+0.3+0.4±0.0−0.3−0.5+0.3+0.2
2022+0.4+0.6+0.9+0.3±0.0+0.2+0.1+0.2+0.4+0.6+0.5+0.4
2023+0.7+0.4+0.4+0.6+0.2+0.1+0.4+0.1−0.1+0.4+0.4+0.5
2024+0.7+0.3+0.1−0.1+0.1+0.1+0.2+0.2+0.1+0.2+0.2+0.6
2025+0.9+1.0+0.7+0.9+0.9+0.6+0.5+0.5+0.3+0.3+0.4+0.8

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Kahoolawe restoration work
Hawkins Biggins · CC BY-SA 3.0
Starr-030828-0093-Prosopis pallida-view helicopter-LZ Quail-Kahoolawe (24613138916)
Forest and Kim Starr · CC BY 3.0 us
Starr-030923-0225-Prosopis pallida-with Kim in helicopter-Over ocean-Kahoolawe (24640245315)
Forest and Kim Starr · CC BY 3.0 us
Kahoolawe vegetation
Unknown author · CC0

About these numbers

Names, area, populationWikidata (Q224086) · 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
Beaches, mountains, lakes and waterfallsCoastya, Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST

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