Climate & Weather in Hoi An (2026)

October–November bring the highest flood risk in the ancient town, with multi-week disruptions to dining and transportation. Real travelers recommend avoiding these weeks or booking refundable accommodation.
May–August is genuinely warm and dry, but June–August temperatures peak near 34°C (93°F); plan activities for early morning or late afternoon to avoid midday heat.
December–January are cooler (19–24°C (66–75°F)) with gray skies and lingering rain from the tail end of the rainy season; it's low-season and quieter, but less ideal for beaches.
Even during peak dry season, humidity is high (72–85%); lightweight, breathable clothing and strong sunscreen are essential year-round.
Tet (Lunar New Year) falls in late January/early February; this is prime time (pleasant 24–26°C (79°F) weather, festival atmosphere), but flights and hotels cost more and domestic transport jams up.

Months: February to August
Characteristics: Ideal for outdoor activities; peak tourism season; blue skies and calm waters
Rainfall Pattern: Very low rainfall, mostly clear skies

Months: September to January
Characteristics: Risk of flooding in ancient town mid-October to mid-November; fewer tourists; lush greenery; cooler air
Rainfall Pattern: Heavy rainfall; October–November peak months with frequent typhoons

Hoi An has a tropical monsoon climate with two distinct seasons: dry (February–August) and rainy (September–January). No snowfall occurs.

None—tropical climate, snowfall does not occur

AI-generated estimateData refreshed July 2026

These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.

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Data last updated July 2026 · Verify anything important.