When to go · Tonga
Tonga in September
Great month. Mothers and calves in the bays; still dry and busy.
Key facts
- Verdict
- Great
- Crowds
- High
- Tonga
- Prices
- High
- Tonga
Verdict
Mothers and calves in the bays; still dry and busy.
Is another month better than September?
No other month rates higher than September for Tonga in this guide.
Weather in September
- Tongatapu and 'Eua · Nuku'alofa, the south coast, 'Euabest weather
Southernmost group: Jun–Aug nights can drop to about 16 °C (61 °F), and the trade winds make it pleasant. Dec–Mar is humid with heavy showers and cyclone risk.Southernmost group: Jun–Aug nights can drop to about 61 °F (16 °C), and the trade winds make it pleasant. Dec–Mar is humid with heavy showers and cyclone risk.
- Ha'apai · Lifuka, Foa, Uolevabest weather
Low coral islands with little shade; the whole group is exposed to storms and to tsunamis.
- Vava'u · Neiafu and the island mazebest weather
A few degrees warmer and wetter than Tongatapu. The sheltered harbour makes it the sailing base; yachts arrive from May and leave before November.
- The Niuas · Niuatoputapu, Niuafo'oubest weather
Remote northern islands closer to Samoa; hot, wet and rarely visited, with infrequent flights.
- Nuku'alofa26 °C (79 °F) / 19 °C (66 °F), 10 rain days79 °F (26 °C) / 66 °F (19 °C), 10 rain days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Crown Prince's Birthday
17 Sep
Public holiday; offices close (check date).
Humpback whale season
Roughly July to October · Nuku'alofa
Whale swimming operators book out; a half-day trip is possible from Tongatapu (check).
Crowds and prices
- Crowds · Tonga
- High
- Prices · Tonga
- High
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Tonga, side by side.
Verdict
Sep: Great
May: Great
Crowds
Sep: High
May: Low
Prices
Sep: High
May: Medium
Festivals listed
Sep: 2
May: 0
September: Mothers and calves in the bays; still dry and busy.
May: Dry season begins; yachts start to arrive in Vava'u.
Tonga: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.
Where to go in September
Rated best or good this month
Tongatapu and 'Eua
Best weather of the year (Nuku'alofa, the south coast, 'Eua)
Ha'apai
Best weather of the year (Lifuka, Foa, Uoleva)
Vava'u
Best weather of the year (Neiafu and the island maze)
The Niuas
Best weather of the year (Niuatoputapu, Niuafo'ou)
Dry and mild.