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Rarotonga, Cook Islands · Tropical

Rarotonga in March: go or not?

Good time. Rarotonga in March gets 7.4/10.

📅 Updated August 2026 🛰️ ERA5 · 10 years 📍 21.24°S · 159.78°W
⚡ This month's verdict
Go for it
Rarotonga · March
7.4
23–25°
Temperature
66%
Rain
6h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Luke Marshall via Unsplash
The month in detail

What to expect in March

March falls in the wet season in Rarotonga. Showers are often brief but intense. With 66.0% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. October (7.8/10) is significantly better if possible.

March ranks 11 out of 12 months in Rarotonga.

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 Rarotonga is October (7.8/10), 0.4 pt higher than March.

See October →See all 12 months →
Context

Our verdict

Rarotonga is the main island of the Cook Islands: 26 sq miles, 14,000 inhabitants, central mountain (Te Manga 2,100 ft), 20 miles loop road around the island. November is my favorite month (8.2/10): 70-72°F, 38% rain, dry season.

Read Gilles' full review →

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 · Rarotonga

GetYourGuide selection · free cancellation

See all →
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 · 77°F
❄️Coolest monthJune · 72°F
🌧️Rainiest month March · 66%

🏝️ Tropical stay

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

Where is Rarotonga ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Cook Islands
Tropical climate with a 7.8 → 7.4 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 Rarotonga?
October is the best month with 72°F highs, 70°F lows, 7.6h of sunshine and 37.0% rainy days. The months of October & November offer comparable conditions.
How many hours of sunshine does Rarotonga get in October?
Rarotonga averages 7.6 sunshine hours per day in October. It is the sunniest month with a climate score of 7.3/10.
What is the rainiest month in Rarotonga?
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 Rarotonga in October?
In October, overnight lows reach 70°F, while afternoon highs average 72°F.
Is Rarotonga good in winter?
In winter (December-February), Rarotonga scores 7.0/10 on average — Acceptable conditions for cultural visits.. The best month overall remains October with a score of 7.3/10.
When should you avoid Rarotonga?
February is the most difficult month to visit Rarotonga, 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 Rarotonga in March?
In March, the sea averages 84°F in Rarotonga: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Rarotonga in March?
The average UV index reaches 8 in March in Rarotonga (high), with about 12.1h of daylight. Sunscreen and hat advised.