September · Tonga
Best time to visit Vava'u in September Weather, crowds & prices
Weather in Vava'u in September
Average temperature 24°C, 56 mm of rain, about 28 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.0/10
Ranked #1 of 12 months
- Avg temp
- 24°C
- Rainfall
- 56 mm
- Humidity
- 77%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Vava'u scores 8.0/10 for sightseeing and cultural travel - the single best month of the year. Expect around 24°C, 56 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Vava'u is a northern Tongan island group of sheltered bays, coral gardens, small islands, sailing routes, and seasonal humpback whale encounters.
September in Vava'u — the year's strongest window
September averages 24°C (75°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rainfall runs 56 mm, so plan one flexible day in three; you still get about 28 days with 6+ hours of sunshine and 12 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Vava'u at 8/10 — the reference point every other month on this page is measured against.
Pack light clothing, a hat and real sun protection, a packable rain layer.
Figure on peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Vava'u in September?
- In September, Vava'u averages 24°C, 56 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 8.0/10.
- Is September a good time to visit Vava'u?
- September earns a 8.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Vava'u in September?
- Expect about 56 mm of rain in September. Average humidity is 77% and there are about 28 days with 6+ hours of sunshine.
Curated in Vava'u
Tickets & experiences
Things to do in Vava'u
Vava'u, Tonga. Live activities and tours from GetYourGuide, matched to this destination.