September weather forecast
Tonga

September in Tonga sees the beginning of the transition from the cooler, drier conditions of the mid-year to the warmer, wetter conditions of the late-year. Temperatures during September typically range from 19°C (66.2°F) to 26°C (78.8°F), marking a slight increase from the cooler months of July and August.

Average rainfall in September begins to increase, marking the end of the dry season. Precipitation amounts are typically around 80mm (3.15"), a slight increase from the preceding months, but still relatively low compared to the peak of the wet season.

In comparison to August, September experiences a slight increase in both temperature and rainfall. The risk of cyclones is still low in September, but it begins to increase as the month progresses, with the official start of the cyclone season just a few months away in November. Sea temperatures remain pleasant for water activities, averaging 25°C (77°F).

As September signals the end of the dry season, the weather conditions begin to shift towards those characteristic of the wet season. Visitors during this month can still expect generally favourable conditions, but should be aware of the changing weather patterns as the wet season approaches. As always, it's advisable to monitor local weather forecasts.

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• Nuku'alofa - September »
  The months with the coldest seawater are August and September, with an average sea temperature of 23.8°C (74.8°F). The months with the coldest seawater in Nuku'alofa are August and September, with an average sea temperature of 23.8°C (74.8°F).
• Neiafu - September »
  As the winter recedes, September in Neiafu sees sea temperatures rise to 25.7°C (78.3°F) from the previous month's low. What time are sunrise and sunset in September in Neiafu?
• Vaini - September »
  In Vaini, during September, the rain falls for 14 days and regularly aggregates up to 64mm (2.52") of precipitation. In September, in Vaini the rain falls for 14 days.
• Pangai - September »
  On the first day of September in Pangai, sunrise is at 06:44 and sunset at 18:29. On the last day of September, in Pangai, sunrise is at 06:18 and sunset at 18:35 +13.
• Hihifo - September »
  With an average relative humidity of 79%, September is the most humid month in Hihifo, Tonga. September tends to be the coldest month in Hihifo with temperatures averaging a daily high of 26.6°C (79.9°F) and a low of 25.7°C (78.3°F).
• Kolonga - September »
  In Kolonga during September, the rain falls for 14 days and regularly aggregates up to 64mm (2.52") of precipitation. The coldest month in Kolonga, Tonga, is September, with an average high-temperature of 22.9°C (73.2°F) and an average low-temperature of 21.7°C (71.1°F).
• Nukunuku - September »
  In Nukunuku, during September, the rain falls for 14 days and regularly aggregates up to 64mm (2.52") of precipitation. In Nukunuku, during September, the rain falls for 14 days and regularly aggregates up to 64mm (2.52") of precipitation.
• Houma - September »
  On the first day of September in Houma sunrise is at 06:49 and sunset at 18:32. In Houma, September is the coldest month, with temperatures averaging a high of 22.9°C (73.2°F) and a low of 21.7°C (71.1°F).
• Holonga - September »
  September stands out as Holonga's coldest month, with an average high-temperature of 24.7°C (76.5°F) and a low-temperature of 23.9°C (75°F). Holonga witnesses the coldest weather in September, with temperatures averaging a high of 24.7°C (76.5°F) and a low of 23.9°C (75°F).
• Kanokupolu - September »
  Kanokupolu's September weather, with an average high temperature of 22.9°C (73.2°F) and an average low temperature of 21.7°C (71.1°F), tends to be the coldest of the year. Kanokupolu experiences its lowest temperatures in September, with an average peak of 22.9°C (73.2°F) and a low of 21.7°C (71.1°F).
• Matahau - September »
  September proves to be the coldest month in Matahau, recording an average maximum temperature of 22.9°C (73.2°F) and a minimum temperature of 21.7°C (71.1°F). On the last day of September, in Matahau, Tonga, sunrise is at 06:22 and sunset at 18:39 +13.