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Tsu

🇯🇵 Japan · Asia

Tsu weather in January

Unfavourable season

Afternoon
9.4 °C
Night
2.3 °C
Sea temperature
11.5 °C
Rainy days
6 days
Relative humidity
68 %

0% of days reached 25 °C over the last 10 years

📷 Lam N · Pexels

Month by month

MonthAfternoonSeaRainVerdict
January9.4 °C11.5 °C6 daysUnfavourable season
February10.5 °C10.5 °C6 daysUnfavourable season
March14.3 °C11.7 °C11 daysPossible, with trade-offs
April18.8 °C14.8 °C11 daysPossible, with trade-offs
May23 °C18.5 °C11 daysPleasant — a good time to go
June25.7 °C21.9 °C15 daysPossible, with trade-offs
July29.9 °C26 °C17 daysPossible, with trade-offs
August31.4 °C28.1 °C15 daysPossible, with trade-offs
September27.6 °C26.5 °C17 daysPossible, with trade-offs
October22.3 °C22.9 °C12 daysPleasant — a good time to go
November17.3 °C19 °C8 daysPossible, with trade-offs
December12.1 °C15.1 °C6 daysPossible, with trade-offs
Best months :AugustJulySeptember

Before you go

Three things to check once you have picked your dates.

Entry

Entry rules depend on your nationality and change often. Check them before booking.

Official entry requirements ↗

Safety

No specific restrictions

Usual precautions apply.

Official advice updated 28 August 2026

UK Foreign Office

Health

Recommended vaccinations, water quality, mosquitoes: advice depends on the country and the season. Some vaccines need time before departure.

Health advice ↗

Beau Fixe is not a safety or health authority. These notes summarise public advisories and link to their source; only the competent authorities are authoritative. Alert levels: Foreign, Commonwealth & Development Office (gov.uk), Open Government Licence v3.0.

FAQ

Can you swim in Tsu in January?

The sea averages 11.5°C in January — too cold for most swimmers.

How hot is Tsu in January?

Expect 9.4°C in the afternoon and 2.3°C at night, averaged over the last 10 years.

Does it rain a lot in Tsu in January?

Around 6 days with rain (≥ 1 mm) in the month — 21% of days.

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