Vietnam is home to a stunning array of secret and beautiful islands that are just waiting to be discovered. These hidden gems, surrounded by the Gulf of Thailand, the Gulf of Tonkin, and the South China Sea, offer the perfect escape for those seeking a peaceful and tranquil vacation by the sea. While less popular than its Thai neighbors, Vietnam’s islands boast many charms of their own. Here are 10 of the most breathtaking and secluded islands that Vietnam has to offer:

In the extreme south of Vietnam and Located in the Gulf of Thailand, just 4 km from Cambodia, recognized by UNESCO as a global biosphere reserve, Phu Quoc, a breathtakingly beautiful island is rapidly becoming one of the hottest beach destinations in Southeast Asia. With a climate that allows for year-round travel, from October to April in particular, it is easy to see why Phu Quoc is often compared to the popular beaches of Thailand.

With 20 idyllic beaches, complete with crystal clear waters and long stretches of soft, white sand, Phu Quoc is a haven for sun seekers and beach lovers. Those who enjoy snorkeling and scuba diving will be thrilled to discover the island’s vibrant coral reefs teeming with exotic and colorful fish.

Phu Quoc island enjoys a mild and pleasant climate throughout the year, divided into two distinct seasons: dry and rainy. The average temperature on the island is around 25 – 27 degrees Celsius.
The best time to visit Phu Quoc is from October to April. This is the perfect time to explore the island as the weather is ideal for all kinds of outdoor activities. Whether you prefer to relax in a resort or enjoy a beach picnic, the conditions are ideal for a perfect vacation experience.

Nam Du is composed of a cluster of 21 pristine islands, situated to the south of Phu Quoc. The area was once off-limits to foreign visitors, so its natural beauty has remained unspoiled, offering a rare opportunity to immerse yourself in the authentic charm of Vietnam. The islands are surrounded by an immense blue sea, and the underwater world is a mesmerizing sight, with multicolored coral reefs that make for a spectacular diving experience, especially in Hon Hai Bo Dap.

The island is also home to endless evergreen primeval forests that provide a haven for a diverse range of wildlife. You can explore the lush surroundings, take long walks along stunning beaches, or simply relax and soak up the tranquility of the serene atmosphere. The scenery is a breathtaking mix of splendid rock cliffs, which are ideal for rock climbing enthusiasts, and clear waters that make for an excellent swimming experience.

The best time to visit Nam Du Island is from December to April during the dry season when the sea is calm, the weather is consistent and sunny, and the temperature is comfortable. The rainy season is from May to October, and there may be rough seas and heavy rainfall, particularly from July to September.

A remote group of islands off the southeast coast of Vietnam. Being a breeding ground for turtles and having unbelievably clean waters, there are protected areas as well as snorkeling spots, beaches, forests to explore. Be the Robinson, apart from the fact that we will take care of everything, you will just relax.

Two main seasons: the dry season from November to April and the rainy season from May to October.
The dry season: a stable weather, calm seas, and comfortable temperatures, making it the best time to visit Con Dao. During this time, visitors can enjoy snorkeling, diving, and other water activities in the clear, pristine waters surrounding the islands.
The rainy season: may experience a heavy rainfall, rough seas, and occasional storms, which may limit outdoor activities. However, it can be a good time to visit for those who prefer a quieter and more secluded experience.

Hon Son island, also known as Hon Rai island, is located in Ha Tien Bay, between the Nam Du archipelago and Hon Tre island in Kien Giang province. This unspoiled island features turquoise waters, white sandy beaches, and a diverse range of wildlife, including primitive forests covering an area of 11 square kilometers.
Visitors can explore the island’s lush green forests, pristine beaches, and vibrant coral reefs.

The ideal time to travel to Hon Son Island is from November to May as the seafood, including mussels, shrimp, and crabs, is fresh, affordable, and the sea is clear and the sun is shining. Moreover, before embarking on your journey, it is advisable to update yourself on the weather conditions in the Ca Mau – Kien Giang sea area and avoid times of rough seas and storms to ensure safety.

Cat Ba Island, also known as the “jewel of the Gulf of Tonkin,” never fails to enchant visitors with its pristine beaches and stunning mountain scenery. It’s always the top choice of tourists when summer comes.

Cat Ba is an archipelago of 367 small and large islands located in Cat Hai district, Hai Phong province. The island is situated offshore the Gulf of Tonkin and is only 30km away from the center of Hai Phong city and about 150km away from the capital city of Hanoi.

UNESCO has recognized this place as a biosphere reserve of the world for its diverse and abundant ecosystems. Cat Ba archipelago is also home to many primeval forests on limestone mountains floating on the sea, creating a picturesque and dreamy landscape.

Cat Ba Island in Hai Phong is an ideal travel destination during the summer season. From April to October, the climate in Cat Ba is relatively cool and pleasant, making it perfect for relaxation and beach activities. In particular, during May, June, and July, Cat Ba is packed with tourists.
You don’t have to worry about the weather because there are very few storms during this time. In July and August, the sea is rough, so it’s important to check the weather forecast for the next 3-5 days to ensure that your Hai Phong Cat Ba trip is not canceled due to a storm.

Ly Son Island, also known as the “Kingdom of Garlic,” is a place of historical significance, boasting a majestic beauty and a community of hospitable and genuine coastal people. The island’s allure lies in its unspoiled and surreal natural landscape. Ly Son is the only island district of Quang Ngai province, located to the northeast, 15 nautical miles offshore.

The island is a remnant of a volcano with five craters, which was formed 25-30 million years ago. Ly Son consists of two islands: Big Island (Ly Son or also known as Cu Lao Re Island), Little Island (Cu Lao Bo Bai) in the north of the Big Island, and Mu Cu Island to the east of the Big Island. The stunning and breathtaking scenery of Ly Son Island makes it an ideal destination for nature lovers and adventure seekers.

Ly Son Island is a beautiful destination with distinct seasons. The best time to visit Ly Son Island is from April to August when the weather is stable with little rain and plenty of sunshine. However, it’s best to avoid the peak season from April to June to escape the crowds. From September to December, the island experiences heavy rain, storms, and rough seas. From late December to April, the island is covered in green moss along the rocky beaches.
It’s important to keep an eye on the weather before embarking on a trip to Ly Son Island to avoid being stranded on the island for several days due to high seas and strong winds.

Cù Lao Chàm is a group of islands recognized by UNESCO as a world biosphere reserve in 2009, home to over 950 marine species. Visitors are drawn to the unspoiled natural beauty, peaceful fishing villages, and romantic scenery.
Tourists to Cù Lao Chàm can enjoy exciting experiences such as fishing with local fishermen, camping by the beach, diving to admire coral reefs, and indulging in fresh seafood. Don’t miss out on the irresistible attractions of this destination!

The best time to visit is from March to August, when the weather is warm, the sea is calm, and there is little rain, making it perfect for activities such as swimming, diving, and enjoying water sports.

However, during the other months of the year, the area experiences typhoons, rough seas, and large waves, which can result in cancelled boat trips and unsafe conditions for tourists. It’s important to check the weather forecast before planning your trip to ensure you have an enjoyable and safe experience on the island.

Phu Quy Island, also known as Cu Lao Thu or Cu Lao Khoai Xu, is a district island with an area of over 16km2 located in Binh Thuan province. This island is blessed with diverse natural resources and numerous scenic spots. Anyone who sets foot on Phu Quy Island is captivated by the unspoiled, peaceful, and sparsely populated scenery. The surrounding area is just mountains, sea, trees, grass, and fresh nature, with no bustling tourist activities. Despite being a hidden gem, the island is becoming a popular destination for young travelers in Vietnam due to its stunning scenery, delicious local specialties, and untouched beauty.

The best time to visit Phu Quy island is from November to Juin, during the dry season and to avoid the rainy season. The island is most beautiful during spring and summer when the sea is calm and clear, making it easy to travel and engage in various activities on the beach. From July to November, Phu Quy island often experiences rain, storms, humid weather, and can be quite cold, so Klook advises against traveling to the island during this time.

Bình Hưng is an indispensable piece in the beautiful picture that nature has bestowed upon Nha Trang. Located at the foot of the pass on the Vinh Hy – Binh Tien coastal road, this beautiful island boasts a unique freshwater cave and crystal-clear water that reveals stunning coral reefs below. Its tranquil beaches are dotted with diverse and vividly colored rocks, some of which are covered in green moss. Visitors can indulge in the freshest seafood, caught straight from the sea, and the renowned Binh Hung lobster, as the island is also famous for lobster farming.

is during the dry season, while it is not advisable to go during the rainy season from July to November when there is a risk of storms and damp weather.

Co To island is a picturesque destination that enchants visitors with its mesmerizing blue color of the sea. The island boasts a natural beauty that is rugged and awe-inspiring, and locals are known for their friendliness and hospitality. Co To is regarded as one of the top 10 most beautiful islands in Vietnam by both domestic and international media. In recent years, Co To’s tourism industry has grown significantly with the development of accommodation options such as hotels and homestays, as well as dining options such as restaurants and eateries. Transportation options to the island have also been upgraded to meet the demands of travelers seeking adventure and exploration.

Co To island is an ideal place to visit during the summer season, according to the weather. The best time to visit is from April to May when the weather starts to enter the summer season. This is the perfect answer to the question of what is the best season to visit Co To island.