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 »
  January through March, November and December, with an average maximum UV index of 12, are months with the highest UV index in Nuku'alofa, Tonga. In Nuku'alofa, Tonga, during January, the rain falls for 17 days and regularly aggregates up to 174mm (6.85") of precipitation.
• Neiafu - January »
  In Neiafu, Tonga, in January, the average water temperature is 28.1°C (82.6°F). In Neiafu, Tonga, in January, the average water temperature is 28.1°C (82.6°F).
• Vaini - January »
  On the first day of January in Vaini, Tonga, sunrise is at 06:02 and sunset at 19:26. Vaini measures an average high-temperature of a still warm 26.8°C (80.2°F) in January, nearly consistent with the preceding month.
• Pangai - January »
  January in Pangai offers warm conditions due to the tropical climate, making it a delightful time for beach lovers. On the last day of January, in Pangai, sunrise is at 06:21 and sunset at 19:20 +13.
• Hihifo - January »
  The month with the most rainfall in Hihifo is January, when the rain falls for 25 days and typically aggregates up to 290mm (11.42") of precipitation. The month with the most rainfall in Hihifo is January, when the rain falls for 25 days and typically aggregates up to 290mm (11.42") of precipitation.
• Kolonga - January »
  With an average relative humidity of 80%, January is the most humid month in Kolonga, Tonga. On the first day of January in Kolonga sunrise is at 06:02 and sunset at 19:25.
• Nukunuku - January »
  In Nukunuku, during January, the rain falls for 22.3 days and regularly aggregates up to 124mm (4.88") of precipitation. Nukunuku, Tonga in January has an atmosphere typified by increased relative humidity levels.
• Houma - January »
  As January unfolds in Houma, the average high-temperature reaches a still warm 26.8°C (80.2°F), hinting at a slight fluctuation 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 »
  The month with the most rainfall in Holonga is January, when the rain falls for 23 days and typically aggregates up to 275mm (10.83") of precipitation. The months with the highest UV index in Holonga are January through April and December, with an average maximum UV index of 7.
• Kanokupolu - January »
  With an average relative humidity of 80%, January is the most humid month in Kanokupolu, Tonga. In Kanokupolu in January, during 22.3 rainfall days, 124mm (4.88") of precipitation is typically accumulated.
• Matahau - January »
  In Matahau in January, it is raining for 22.3 days, with typically 124mm (4.88") of accumulated precipitation. On the first day of January in Matahau, sunrise is at 06:03 and sunset at 19:26.