Cook IslandsAtoll

Manihiki

4.0 km² of land in the Pacific Ocean.

When to go

NASA: Expedition 45 crew, ISS · Public domain

In numbers

4.0km²

Area

Highest point

30°C

Warmest sea

April

5,300km

To the mainland

When to go to Manihiki

Best for the beach from January to March and from July to August.

The sea is warmest in April (30 °C) and coolest in August (28 °C). You can swim comfortably all year (21 °C or more).

29°28°28°

Jan24

29°28°28°

Feb21

29°28°28°

Mar23

30°29°28°

Apr20

29°29°28°

May19

29°28°28°

Jun16

28°28°28°

Jul15

28°28°27°

Aug14

28°28°27°

Sep16

29°28°27°

Oct19

29°28°28°

Nov20

29°28°28°

Dec22

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.

Atoll in the northern Cook Islands

Manihiki is an atoll in Cook Islands. It covers 4.0 km². Its highest point rises to 4 m. The nearest mainland is 5,300 km away.

Getting there

5,300 km from the mainlanddistance to the nearest continental coast
From January to March and from July to Augustbest months to go (from 30 years of averages)

Plan the trip

Ferries, stays and things to do

Car hire in Cook IslandsDiscover 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.

Month by month

The weather on the island.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Afternoon high (°C)	28	28	28	29	29	28	28	28	28	28	28	28
Night low (°C)	28	28	28	28	28	28	28	27	27	27	28	28
Sea (°C)	29	29	29	30	29	29	28	28	28	29	29	29
Rain (mm)	244	233	159	100	102	91	92	64	70	122	112	196
Wet days	24	21	23	20	19	16	15	14	16	19	20	22
Sun h/day	6.7	6.8	7.7	8.1	7.9	7.8	8.2	8.6	8.9	8.6	8.2	7.5
Wind (km/h)	19	20	18	17	19	22	24	24	24	20	17	18

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	−0.1	+0.3	+0.4	+0.7	+0.4	+0.4	+0.7	+0.7	+0.2	−0.1	+0.1	±0.0
2021	−0.2	±0.0	+0.1	±0.0	−0.2	+0.1	±0.0	−0.2	−0.3	−0.3	±0.0	−0.1
2022	−0.4	−0.5	−0.6	−0.5	−0.5	−0.5	−0.7	−0.7	−0.7	−0.8	−0.6	−0.5
2023	−0.4	−0.2	+0.4	+0.5	+0.5	+0.7	+0.6	+0.7	+0.8	+0.9	+1.0	+0.9
2024	+1.1	+0.8	+1.1	+1.3	+1.0	+1.1	+0.9	+0.5	+0.6	+0.6	+0.4	+0.2
2025	+0.2	+0.4	+0.5	+0.5	+0.6	+0.6	+0.5	+0.5	+0.3	+0.1	−0.1	±0.0

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

MA I296523 TePapa Church-Tukao-Manihiki full — Thomas Andrew (d. 1939) · Public domain

Nearby

More islands nearby.

Penrhyn

Cook Islands9.8 km²4 m368 km away Suwarrow

Cook Islands150 km²388 km away

About these numbers

Names, area, population	Wikidata (Q967796) · CC0
Outline	Natural Earth · public domain
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