The humpbacks are in Vavaʻu water from 1 July to 30 November, thinning from mid-November. Four swimmers and a guide, licensed boats only, 300 metres for everyone else — and what a breach costs.
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From Town Tools. For the current version, visit https://www.towntools.org/neiafu-vava-u-to/whale-season
Humpbacks come north to Vavaʻu's sheltered water to breed and calve, and the island's main industry outside government works the four months they are here. The licensed season opens on 1 July. The Ministry of Tourism's published conditions close it on 30 November; in practice numbers fall away markedly from about mid-November most years. The rules below are the law, not a brochure: they apply to the boat you book and to your own boat equally.
Only a licensed boat may put people in the water
No more than four clients plus one trained local guide, per certified vessel, may be in the water with any one pod at a time, and only one licensed vessel at a time may do it. A swimmer may come no closer than five metres to a whale. Scuba gear, artificial lights and motorised swimming aids are all banned for whale interaction, and a vessel flies the alpha flag while its swimmers are in the water. Whale Watching and Swimming Regulations, regulations 10 and 11.
In your own boat, the limit is 300 metres
A vessel that is not licensed may not approach closer than 300 metres to any whale, and nobody may enter the water with a whale except from the certified vessel of a licensed whale-swimming operator. If a whale comes to you, steer out of its path and keep 300 metres off, leaving at no-wake speed. A kayak may only be near whales if it was launched from a licensed vessel, and no jet ski may come within 2,000 metres. No boat, licensed or not, may spend more than an hour and a half with one pod, and after that the pod is left alone for at least another hour and a half.
(today)
What a breach costs
For an individual, a first offence is a fine of not less than T$1,000 and not more than T$5,000, or up to 18 months in prison, or both; a repeat offence is up to T$10,000 or three years. For a company it is T$10,000 to T$20,000 first time and up to T$50,000 after that, and a director who authorised the act is guilty of the same offence. The “T$10,000 fine” quoted around the harbour is the individual repeat-offence ceiling. Breaches are reported to the Ministry of Tourism, with photographs, and the Ministry patrols with the police.
Licences, hours and the radio
A whale licence runs for three years, and the Minister may cap how many exist. A gazette order of 25 February 2020 set the ceiling at 20 for Vavaʻu, 7 for Tongatapu, 10 for Haʻapai and 4 for ʻEua, for one year from gazettal; no later order could be read from here, and the Vavaʻu Port Officer guide counted 26 licence holders in Vavaʻu in October 2026. The Ministry of Tourism's conditions allow a maximum of seven hours of whale activity a day and none between 4pm and 5am. Licensed boats work VHF channel 74 on low power when they are inside 300 metres of a whale. Sunday is a day of rest in Tongan law, and the shops, ferries and domestic flights stop.
What you’re likely to see in October
Peak
Humpback whale (tofuaʻa) — Oceania's humpbacks winter here, then head back to Antarctica.
Month by month
Peak
Good
A chance
Unlikely
Humpback whale (tofuaʻa)
Best: Jul–Oct
Oceania's humpbacks winter here, then head back to Antarctica.
J
F
M
A
A pattern, not a promise
These are seasonal patterns from past years, not a forecast — wild animals keep their own schedule. A good month means a good chance, never a guarantee.
M
J
J
A
S
O
N
D
No published month-by-month count for Vavaʻu was found, so the months above are the season as the Ministry of Tourism and the Vavaʻu Port Officer guide describe it, not a tally of sightings. The licensed season runs 1 July to 30 November; whale numbers drop off markedly by mid-November in most years, which is why November is marked as a chance rather than a good month.