Climate and region of Con Dao
Con Dao is a remote island group in southern Vietnam, located about 230 km southeast of Ho Chi Minh City. Known for its pristine beaches, marine biodiversity, and historical significance, it remains one of Vietnam’s most untouched coastal destinations.
The climate of Con Dao is tropical monsoon, with two distinct seasons:
- Dry season (November to April): Warm temperatures, little rainfall, and ideal beach weather.
- Rainy season (May to October): High humidity, heavy showers, and overcast skies, though the sea generally remains calm.
August is in the middle of the rainy season, meaning visitors should expect daily rain showers, high humidity, and occasional strong winds.
Weather in Con Dao in August
August is hot and humid, with temperatures ranging from 26°C to 31°C (79°F to 88°F). While it is consistently warm, the high humidity and frequent rain showers can make outdoor activities less enjoyable.
Rain is almost guaranteed daily, typically in the afternoons or evenings. These tropical downpours are usually intense but short-lived, lasting 30 minutes to an hour before clearing up. Cloudy skies are common, and stronger winds may occur occasionally.
The sea remains calm, meaning diving and boat trips are still possible, although visibility may be affected by rain runoff.
Beach holiday or not?
No, August is not a great month for a beach holiday in Con Dao. While the island’s beaches remain scenic, frequent rain and overcast skies mean that sunbathing and swimming opportunities are limited.
Travel tip: If you’re looking for better beach weather in Vietnam during August, consider Vietnam’s central coast, where destinations like Hoi An, Da Nang, Nha Trang, and Quy Nhon experience dry, sunny conditions during this time.
For more details on the best months to visit, check our Con Dao weather from month to month.
Diving in Con Dao in August
One of the main reasons people visit Con Dao is diving, and August is still within the high season for diving (March to September). While the rainy season brings overcast skies and some reduced visibility, the waters remain calm, and marine life is still active.
Divers can expect to see healthy coral reefs, rays, sea turtles, and tropical fish, particularly at dive sites like Bay Canh Island, Hon Tai, and Tre Lon Island. Occasional rain does not significantly affect diving conditions, but water visibility may decrease after heavy rainfall.
For a complete diving guide, check our everything you need to know about diving in Con Dao.
Turtle watching season
Yes, August is one of the best months for turtle watching in Con Dao. The green sea turtles and hawksbill turtles are in the middle of their nesting season, which lasts from late May to October.
Visitors can witness turtles coming ashore to lay eggs at night or even baby turtles hatching and making their way to the sea. This unique wildlife experience takes place on Bay Canh Island and Hon Cau Island, where conservation programs protect the turtles.
For more details on how to see turtles, check our guide to Con Dao’s turtles.
Is Con Dao worth visiting in August?
Con Dao is not ideal for a general visit in August, but it is worth considering if you are specifically interested in diving or turtle watching.
- Not recommended for a beach holiday: Frequent rain, overcast skies, and high humidity make it difficult to enjoy the beaches.
- Diving is still possible: Despite the rainy season, diving conditions remain fairly good, and marine life is active.
- Turtle watching is at its peak: August is one of the best months to see turtles nesting and hatching.
If you’re looking for a tropical beach destination with clear skies, Vietnam’s central coast (Hoi An, Da Nang, Nha Trang, or Quy Nhon) is a better choice in August. However, if your main interest is wildlife or diving, Con Dao is still a worthwhile destination this month.
