Best time to visit Hoi An

Vietnam · 20-year averages

February is the best month in Hoi An, scoring 84 out of 100, with August the weakest at 40. The 44-point spread means timing is worth planning around without being decisive. The good window runs January to March — 3 months within ten points of the best.

June is the warmest month at 33.1 °C and January the coolest at 24.8 °C — a 8.3 °C spread across the year. 179 days a year top 30 °C, more than a third of the calendar, so heat is the baseline here rather than a season.

There is a real wet season here. August to December carry the rain — up to 23 wet days in a month — while February to April drop as low as 6. That 17-day gap is the biggest single difference between a good month and a bad one in Hoi An, and it moves further than the temperature does.

The sea never drops below 24.1 °C, so swimming is on the table year round. Daylight barely moves: about 13.1 hours whatever the month, which removes one variable from the decision entirely.

The three strongest months are February, January, March. The one to think twice about is August. Each month below has its own page with rainfall reliability, extremes, daylight, sea temperature and crowd levels.

Hoi An month by month

MonthHigh °CLow °CRain daysDaylight hSea °CScoreVerdict
January 24.8201311.324.2 76A good month
February 26.320.2611.624.1 84Prime time
March 28.621.971225.1 75A good month
April 31.224.1712.526.8 65A good month
May 32.6261212.928.9 51Shoulder season
June 33.126.81113.129.9 52Shoulder season
July 3326.7141329.8 46A hard month
August 32.626.71912.729.9 40A hard month
September 31.226.22212.229.5 43A hard month
October 29.224.92311.828.1 51Shoulder season
November 27.623.42111.426.8 56Shoulder season
December 25.321.22011.225.4 65A good month

Planning the rest of the trip

Built and maintained by Amit Sharma, Auckland, New Zealand. I build these sites so the answer is free and the data is public.

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