Passport validity
The source states no minimum passport validity.
Visa rules · Tourist entry
Other passports: see the rules for every passport visiting Poland.
The answer
Peru 15 March 2016 (provisional application) Palau 8 December 2015 (provisional application) Tonga 21 November 2015 (provisional application) Grenada 1 February 2019 Timor-Leste 1 May 2022
The source states no minimum passport validity.
These rules cover tourist visits. Work, study and transit follow other rules.
What Poland passport holders need to visit Tonga.
Poland passport
This Agreement provides for visa-free travel for the citizens of the Union and for the citizens of Tonga when travelling to the territory of the other Contracting Party for a maximum period of 90 days in any 180-day period.
Other places Tonga passport holders can visit without a visa, within 2,500 km of Warsaw, nearest first.
Average high and low temperature and rainfall in Warsaw, month by month.
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