January weather forecast
Tonga

January is situated in the midst of Tonga's cyclone season, which is characterized by higher temperatures, increased humidity, and a higher likelihood of extreme weather events. Across the archipelago, temperatures during January range from 24°C (75.2°F) to 31°C (87.8°F). This makes January one of the warmest months of the year in Tonga.

In terms of rainfall, January is typically one of the rainiest months, with an average precipitation exceeding 130mm (5.12"). It's crucial to note that these figures are averages, and actual rainfall can vary considerably, especially during cyclone events. The island group of Ha'apai, which lies in the central part of the Tongan archipelago, tends to receive slightly more rainfall than other areas during this time.

Comparatively, January is wetter and warmer than December, the preceding month, and roughly similar in temperature and rainfall to February, the following month. It is this period, from December to February, that constitutes the heart of the cyclone season, a time of heightened weather activity and potential disruptions due to heavy rainfall and strong winds.

It's also worth noting that despite these weather conditions, the rich natural beauty of Tonga remains a draw for visitors. The plentiful rainfall during January ensures the islands are at their most lush and vibrant, and the warm sea temperatures, often around 29°C (84.2°F), are ideal for water-based activities such as snorkeling and diving. However, potential visitors should stay updated with weather forecasts and be prepared for possible changes in plans due to weather conditions.

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• Nuku'alofa - January »
  Throughout the month of January, Nuku'alofa witnesses an average temperature of 23.4°C (74.1°F). In Nuku'alofa, in January, the average water temperature is 27.7°C (81.9°F).
• Neiafu - January »
  In Neiafu in January, the average water temperature is 28.1°C (82.6°F). What time are sunrise and sunset in January in Neiafu?
• Vaini - January »
  January is the most humid month in Vaini with an average relative humidity of 80%. In Vaini during January, the rain falls for 22.3 days and regularly aggregates up to 124mm (4.88") of precipitation.
• Pangai - January »
  January in Pangai offers warm conditions due to the tropical climate, making it a delightful time for beach lovers. On the first day of January in Pangai, sunrise is at 06:01 and sunset at 19:20.
• Hihifo - January »
  Hihifo, Tonga experiences the year's highest rainfall in January, with an immense 290mm (11.42") precipitation spread over a substantial 25 days. The months with the highest UV index in Hihifo are January through May, July through September, November and December, with an average maximum UV index of 7.
• Kolonga - January »
  The most humid month in Kolonga is January, with an average relative humidity of 80%. The most humid month in Kolonga is January, with an average relative humidity of 80%.
• Nukunuku - January »
  With an average relative humidity of 80%, January is the most humid month in Nukunuku, Tonga. With an average relative humidity of 80%, January is the most humid month in Nukunuku, Tonga.
• Houma - January »
  The initiation of January in Houma sees an average high-temperature of a still moderately hot 26.8°C (80.2°F), showing minor variations from the previous month. In Houma during January, the rain falls for 22.3 days and regularly aggregates up to 124mm (4.88") of precipitation.
• Holonga - January »
  On the first day of January in Holonga sunrise is at 06:02 and sunset at 19:16. The advent of January in Holonga brings an average high-temperature of a still moderately hot 27.8°C (82°F), almost identical to the preceding month.
• Kanokupolu - January »
  January is the most humid month in Kanokupolu with an average relative humidity of 80%. The weather in Kanokupolu, Tonga in January exhibits a tropical climate norm, characterized by warmth, high humidity, and substantial rainfall.
• Matahau - January »
  In Matahau in January, during 22.3 rainfall days, 124mm (4.88") of precipitation is typically accumulated. In Matahau, Tonga, in January, it is raining for 22.3 days, with typically 124mm (4.88") of accumulated precipitation.