Tonga · SpringMonth summary
Tonga weather in May
✅ Good
🌡️ Temperature min / max
23°C – 25°C
🌧 Rainy days
46% of days
☀️ Sunshine
10.7h per day on average
🌊 🌊 Season
Spring
⭐ ⭐ Weather score
7.5/10
📅 📅 Best month
June (7.8/10)
Quick decision
Should you visit Tonga in May?
✅ Good
✅ Yes if: you want shoulder-season value — fewer crowds, 25°C.
❌ No if: you need maximum sunshine — some overcast days are possible.
Our take: Favourable conditions in May (7.5/10). June scores higher but the gap is small.
By trip type
Tonga in May by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in May
🎯 Peak cultural season — museums and sites accessible in good weather conditions Spring marks the start of the good season in Tonga. Temperatures rise (25°C) and tourists have not yet arrived en masse. With 46% of rainy days, always have indoor alternatives planned. A good balance between weather and crowds, even if June (7.8/10) remains theoretically better.
Browse by month
All months for Tonga
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 25°C | 28°C | 75% | 8.1 | 12.2h | 7.3/10 |
| 🌦️ February | 25°C | 28°C | 86% | 11.1 | 12.0h | 7.1/10 |
| ⛅ March | 25°C | 28°C | 72% | 9.7 | 11.2h | 7.3/10 |
| 🌤️ April | 24°C | 27°C | 53% | 5.6 | 11.0h | 7.6/10 |
| 🌤️ May | 23°C | 25°C | 46% | 5.1 | 10.7h | 7.5/10 |
| 🌤️ June | 22°C | 25°C | 36% | 3.1 | 10.3h | 7.8/10 |
| 🌤️ July | 21°C | 24°C | 34% | 2.9 | 10.3h | 7.7/10 |
| 🌤️ August | 21°C | 23°C | 39% | 3.6 | 10.6h | 7.6/10 |
| 🌤️ September | 21°C | 24°C | 42% | 2.7 | 11.0h | 7.7/10 |
| 🌤️ October | 22°C | 25°C | 51% | 4.7 | 11.5h | 7.5/10 |
| 🌤️ November | 23°C | 26°C | 59% | 4.6 | 12.8h | 7.6/10 |
| ⛅ December | 24°C | 27°C | 65% | 6.4 | 13.0h | 7.5/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In May, Tonga averages 25°C, 46% rainy days and 10.7h of sunshine per day. Overall weather score: 7.5/10.
See methodology →
Comparison
May vs June (best month)
The best month is June (score 7.8/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : -10%
- ☀️ Sunshine : -0.4h/day
FAQ
FAQ — Tonga in May
Is May a good time to visit Tonga?
May is an excellent time to visit Tonga (score 7.5/10). With 25°C, 10.7h of sunshine and 46% rain, conditions are very favourable.
What to do in Tonga in May?
With 25°C max and 10.7h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Tonga
Guided tours, skip-the-line tickets and local experiences.
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