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Ashiya

🇯🇵 Japan · Asia

Ashiya weather in August

Possible, with trade-offs

Afternoon
31.7 °C
Night
25.1 °C
Sea temperature
27.5 °C
Rainy days
14 days
Relative humidity
79 %

99% of days reached 25 °C over the last 10 years

📷 Paulino Acosta Santana · Pexels

Month by month

MonthAfternoonSeaRainVerdict
January8.6 °C11.6 °C7 daysUnfavourable season
February9.6 °C9.8 °C7 daysUnfavourable season
March13.8 °C10.8 °C10 daysPossible, with trade-offs
April18.6 °C14 °C11 daysPossible, with trade-offs
May23 °C18 °C11 daysPleasant — a good time to go
June26.1 °C21.4 °C14 daysPossible, with trade-offs
July29.9 °C25.3 °C16 daysPossible, with trade-offs
August31.7 °C27.5 °C14 daysPossible, with trade-offs
September28.2 °C26.3 °C15 daysPossible, with trade-offs
October22.2 °C23.2 °C10 daysPleasant — a good time to go
November16.9 °C19.7 °C7 daysPossible, with trade-offs
December11.1 °C15.6 °C7 daysUnfavourable season
Best months :AugustSeptemberJuly

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 Ashiya in August?

The sea averages 27.5°C in August — yes, pleasant swimming.

How hot is Ashiya in August?

Expect 31.7°C in the afternoon and 25.1°C at night, averaged over the last 10 years.

Does it rain a lot in Ashiya in August?

Around 14 days with rain (≥ 1 mm) in the month — 47% of days.

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