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Cook Islands, Cook Islands · Tropical

Cook Islands in March: go or not?

Good time. Cook Islands in March gets 7.7/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 21.24°S · 159.78°W
⚡ This month's verdict
Go for it
Cook Islands · March
7.7
23–25°
Temperature
40%
Rain
6h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Christoph Burgdorfer via Unsplash
The month in detail

What to expect in March

Autumn in Cook Islands is often underrated: 25°C, golden light and declining crowds. An interesting window. Expect rain on 40% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if October (8.1/10) remains theoretically better.

March ranks 11 out of 12 months in Cook Islands.

This month's conditions

What it's like in March

UV index
8 · high
sunscreen and hat advised
Feels like
muggy at times
21°
Sea
29°C
warm, ideal
Daylight
12.1h of daylight
Air quality
excellent
AQI 14
Compare

Is March the right month?

The best month in Cook Islands is October (8.1/10), 0.4 pt higher than March.

See October →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Cook Islands

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Cook Islands

🗣️LanguageEnglish
💶CurrencyNew Zealand Dollar ($)
🚗DrivingLeft-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeTropical
📈Climate trend ⓘStable
🔥Hottest monthJanuary · 25°C
❄️Coolest monthJune · 22°C
🌧️Rainiest month ⓘFebruary · 41%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Location

Where is Cook Islands ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Cook Islands
Tropical climate with a 8.1 → 7.7 gap between best and worst month. 10 years of ERA5 data to choose by project.
21.24°S · 159.78°W
Questions

Frequently asked questions

What is the best time to visit Cook Islands?
November is the best month with 22.0°C highs, 21.0°C lows, 8.2h of sunshine and 22.0% rainy days. The months of November & June offer comparable conditions.
How many hours of sunshine does Cook Islands get in November?
Cook Islands averages 8.2 sunshine hours per day in November. It is the sunniest month with a climate score of 7.6/10.
What is the rainiest month in Cook Islands?
February is the most unfavourable month with February has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Cook Islands in November?
In November, overnight lows reach 21.0°C, while afternoon highs average 22.0°C.
Is Cook Islands good in winter?
In winter (December-February), Cook Islands scores 7.3/10 on average — Decent period conditions for cultural visits.. The best month overall remains November with a score of 7.6/10.
When should you avoid Cook Islands?
February is the most difficult month to visit Cook Islands, with February has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Cook Islands in March?
In March, the sea averages 29°C in Cook Islands: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Cook Islands in March?
The average UV index reaches 8 in March in Cook Islands (high), with about 12.1h of daylight. Sunscreen and hat advised.