SeasonScore
Tonga, Tonga
Photo: Haanofonua · CC BY-SA 3.0

Tonga

Tonga in January

🌧️ Rainy season

Warm, humid and often rainy. Watch for tropical cyclone risk.

🎒 Pack: compact umbrella or rain jacket · quick-dry fabrics

Best months: Jun (9.1), Jul (9.1), Aug (9.1)

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Why January scores 8.0What goes into the score

How it works
🌡️ 29° / 23°C🌧️ 174 mm💧 dew pt 24°🍃 PM2.5 5
  • Weather comfort6.9
    • ✓Warm (29°C highs / 23°C lows)
    • !Very humid/sticky (dew point 23.5°C)
    • !Wet: ~174 mm rain, ~5 heavy-rain days
  • Air quality10.0
    • ✓Good (within WHO guideline) (PM2.5 ~5 µg/m³)
  • Seasonal hazards8.5
    • !Tropical cyclone: Peak of the Australian/South Pacific cyclone season
  • Safety baseline8.0
    • ·Normal precautions
Compare monthsPut January side by side with another month
JanJun
Score8.0 Very good9.1 Excellent
Season🌧️ Rainy season🌦️ Shoulder (showers)
High / low29° / 23°26° / 20°
Rain174 mm95 mm
Humiditydew pt 24°dew pt 20°
PM2.55 µg/m³5 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Nukuʻalofa weather-station normals. Rainfall: Nukuʻalofa weather-station normals (national met service).

Holidays & crowdsJanuary 2027

Long weekend

There's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.

  • New Year 1–3 Jan · 3 days off in a row

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore TongaEvents, sights, food & souvenirs

Check event dates locally

A Pacific kingdom of about 170 islands, known for humpback whale swimming in Vava'u and Ha'apai and a strongly traditional Polynesian culture.

Events in January

No major events on our calendar for January.

Coming up later

Humpback whale seasonDate variesUsually July to October

Humpback whales arrive from Antarctica to breed and give birth.

Why go: This is peak tourist season; book accommodation and tours early.

Where: Vava'u, Ha'apai and Tongatapu