Cook Islands · 1991–2020 normal

Nikao in
August.

Typical August weather in Nikao: 25.5°C by day, 19°C at night, 90 mm of rain over 8 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high25.5°C
Typical low19°C
Rain90 mm
Wet days8

In the year-round weather comparison, August scores 76 out of 100 (June leads the year at 76). Daylight is calculated as 11 h 23 from latitude -21.21°. Open-water sea temperature is 24.4°C (11 km from the place centre).

August at a glance

What is Nikao like in August?

Plain answers from the measured climate record—not a forecast or a promise about a particular trip.

Is Nikao hot in August?

Days are typically warm at 25.5°C, while nights average 19°C.

Does it rain much?

The measured monthly average is 90 mm across about 8 wet days.

How much daylight is there?

There are about 11 h 23 between sunrise and sunset at mid-month, calculated from the place latitude.

Is August a good time to visit?

August ranks 2 of 12 in our weather comparison; June ranks first.

Event window

Warm sea in August

The nearest open-water NOAA OISST 1991–2020 cell averages 24.4°C in August. A sheltered bay can run warmer than that open-water cell.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4036495
NOAA station
CWM00091843 · RAROTONGA INTL
Station distance
0.5 km from the place centre
Coverage
Good coverage · 22 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

Next step

Choose your month.
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The weather comparison for Nikao is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.

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