Tonga - Facts

Aug 28, 2025

Tonga FAQs

Pre-Arrival Boat: Customs require an Advance Notice of Arrival, at least 24 hours in advance. See Clearance for details.
Pre-Arrival Crew: There are many visa-exempt countries. See Immigration to find out if you need a visa.
Where can I enter? There are 5 ports of entry. Click on the anchor symbol in the blue “Explore Country” drop down, to see the list.
Are fees high to enter by yacht? During normal working hours there is only health and quarantine fees to pay on entry. On departure harbour dues must be paid. See Fees for more details.
What security concerns should I know about? Crime levels in Tonga are relatively low and Noonsite has never received any security reports from yachts here. See Security for more info.

Tonga Alerts

  • HAZARD ALERT:  On December 24, 2024 Tonga Geological Services issued a Hazard Alert warning all mariners to keep at least 4km away from the Home Reef Volcano due to ongoing volcanic activity.  The Alert is still in place.  See Restrictions for more information.

Tonga Facts for Sailors

  • Officially called the Kingdom of Tonga, it is situated in the heart of the South Pacific 1284NM NNE of New Zealand and 2800NM east of Australia. The archipelago consists of over 160 coral and volcanic islands, of which only 36 are inhabited.
  • The two roughly parallel chains of Tongan islands are the summits of volcanic undersea mountains. Most of the islands of the western chain are classified as high islands, because they have been raised well above sea level by repeated volcanic activity. Four of them are still active volcanoes.
  • Tongatapu Island, with an area of 100.6 square miles, is the largest and most densely populated island in Tonga.
  • Tonga has a new island, about 65 kilometres north north-west of Tongatapu, which started forming in January 2016 after a volcano began erupting. Tonga's lands and natural resources ministry has examined the island and stated that the newly formed landmass is around 800m wide and 1.3km long.
  • The population in 2024 was 104,000, it is in slow decline as a great many workers are lost seasonally when they go overseas to Australia and NZ.
  • The official language is Tongan, but English is widely spoken in all the urban areas.
  • The paʻanga is the currency of Tonga. For specifics see General Info.
  • Tonga Standard Time is UTC +13 See General Info for more details.
  • The climate is tropical, influenced by the trade winds, with a hot, humid, and rainy season from December to April and a cool and relatively dry season from June to October. See Weather for more details.
  • Best known among sailors is the northern group of Vava'u, whose maze of islets and reefs provides one of the best cruising grounds in the South Pacific. In recent years there has been a significant increase in the number of boats in the South Pacific, in particular in Tonga’s Vava’u Group.
  • The Ha’apai group, while requiring careful navigation, has some of the most beautiful isolated islands in the Pacific.
  • A dangerous area to avoid by boats on passage to Fiji is Metis Shoal (19°11.4'S 174°51'W), where there has been intense volcanic activity.
  • In spite of Tonga's remoteness, facilities are surprisingly good and the setting up of a small industrial centre near the capital Nuku'alofa has encouraged several boating-related foreign companies to start operations in Tonga. For more details on yachting services see Yachting Essentials.

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