May · Tonga
Best time to visit Ha'apai in May Weather, crowds & prices
Weather in Ha'apai in May
Average temperature 25°C, 131 mm of rain, about 25 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
5.8/10
Ranked #7 of 12 months
- Avg temp
- 25°C
- Rainfall
- 131 mm
- Humidity
- 77%
- Days with 6h+ sun
- 25
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
May in Ha'apai scores 5.8/10 for sightseeing and cultural travel - ranked #7 of 12. Expect around 25°C, 131 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.
Ha'apai is a lightly developed Tongan island group of low coral islands, quiet beaches, reefs, village life, and slow inter-island travel.
May in Ha'apai — workable with trade-offs
At 25°C (77°F) this is comfortable city weather in May, with sightseeing easiest before lunch and after the afternoon peak.
131 mm of rain makes this a wet month here, though with about 25 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 5.8/10 on the same scale — 7th of 12 months, versus 8.1/10 for the best month here.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, September is materially better in Ha'apai — 2.3 points higher on the same scale.
Frequently asked
- What is the weather like in Ha'apai in May?
- In May, Ha'apai averages 25°C, 131 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 5.8/10.
- Is May a good time to visit Ha'apai?
- May earns a 5.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Ha'apai in May?
- Expect about 131 mm of rain in May. Average humidity is 77% and there are about 25 days with 6+ hours of sunshine.
Curated in Ha'apai
Tickets & experiences
Things to do in Ha'apai
Ha'apai, Tonga. Live activities and tours from GetYourGuide, matched to this destination.