Now being the rainy season, September isn't a great month to visit Con Dao. Rainfall is pretty heavy, winds are strong and the humidity level is an uncomfortable 85 per cent. The sea water temperature is still a pleasant 27C, but the windy weather conditions may scupper most water related activities. Two major ocean currents are meeting in September and when they collide, they trigger massive rainfall that spans up to 21 days.
Nevertheless, if you do still travel to Con Dao during September, the Con Dao Resort offers superb indoor activities and facilities.
The Vietnamese celebrate their National Day on September 1st. Hence, you'll definitely stumble upon some great parties on that day. Whether you're lodged at a fancy resort or in a camping site, September 1st is a day of celebration - regardless of the weather. Other festivals taking place this month include the Kiep Bac Festival and The Doson Buffalo Fighting Festival, an extremely entertaining event held in Haiphong City.