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Tonga, Tonga · Tropical

Tonga in March: go or not?

Mixed period. Tonga in March: 5.3/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 21.21°S · 175.15°W
⚡ This month's verdict
Why not
Tonga · March
5.3
25–28°
Temperature
47%
Rain
6h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Vince Russell via Unsplash
The month in detail

What to expect in March

Autumn marks the end of peak season in Tonga. Temperatures drop (28°C) and rain returns (47% of days). With 47% of rainy days, always have indoor alternatives planned.

March ranks 10 out of 12 months in Tonga. Compared to February: 13 pts fewer rainy days.

This month's conditions

What it's like in March

UV index
6 · high
sunscreen and hat advised
Feels like
very humid
22°
Sea
28°C
warm, ideal
Daylight
12.1h of daylight
Air quality
excellent
AQI 13
Compare

Is March the right month?

The best month in Tonga is June (8.2/10), 2.9 pts higher than March.

See June →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 · Tonga

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 · Tonga

🗣️LanguageTongan
💶CurrencyPaʻanga tongan (T$)
🚗DrivingLeft-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeTropical
📈Climate trend ⓘ+0.85°C/decade
🔥Hottest monthJanuary · 28°C
❄️Coolest monthAugust · 23°C
🌧️Rainiest month ⓘFebruary · 60%

🏝️ Tropical stay

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

Where is Tonga ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Tonga
Tropical climate with a 8.2 → 5.0 gap between best and worst month. 10 years of ERA5 data to choose by project.
21.21°S · 175.15°W
Questions

Frequently asked questions

What is the best time to visit Tonga?
June is the best month with 25.0°C highs, 22.0°C lows, 6.7h of sunshine and 21.0% rainy days. The months of June & July offer comparable conditions.
How many hours of sunshine does Tonga get in June?
Tonga averages 6.7 sunshine hours per day in June. It is the sunniest month with a climate score of 7.7/10.
What is the rainiest month in Tonga?
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 Tonga in June?
In June, overnight lows reach 22.0°C, while afternoon highs average 25.0°C.
Is Tonga good in winter?
In winter (December-February), Tonga scores 5.7/10 on average — Decent period conditions for cultural visits.. The best month overall remains June with a score of 7.7/10.
When should you avoid Tonga?
February is the most difficult month to visit Tonga, 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 Tonga in March?
In March, the sea averages 28°C in Tonga: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Tonga in March?
The average UV index reaches 6 in March in Tonga (high), with about 12.1h of daylight. Sunscreen and hat advised.