Weather

Vietnam is geographically located in the tropical zone, with the top North region on temperate zone. Therefore, its climate is not consistent throughout the country. In fact, the weather varies significantly by latitude and longitude.

The North (Hanoi, Halong Bay) is monsoonal with hot and rainy season from April to September and cool dry season from October to March. October and November are the best months to visit since you avoid the domestic tourist flow and also experience a more comfortable temperature and humidity compared with other months.  

The Central part of Vietnam (Hue, Da Nang and Hoi An) receives dry and hot Southwest wind which makes it strenuous for any brisk walk during the day. Closer to the beach, the level of severity reduced and the dry wind is replaced by cool ocean breeze.   Because of the limited land area, central Vietnam is also most susceptible to natural disasters such as hurricane or flooding. The paradox is, it is also where most beautiful beaches lie.  

The South (Ho Chi Minh City, Nha Trang, Mui Ne) is typically hot all year round with two main seasons: rainy and dry. It is also the most predictable region in terms of weather. Summer months from May to August might not be the best time to hit the road since most tourists destinations are packed with tourists and downpours happen quite frequently.  

The mountain area in Northwest and South central Vietnam see little fluctuation in weather condition. It is fairly cool all year round and a great place to escape the heat from cities. The rainy season is also from May to September. At the extreme you can see snow or flurry in December or January in Sa Pa (or Sapa).  

Read more at: https://www.vietnamonline.com/weather.html

HO CHI MINH CITY
Ho Chi Minh City's climate is classified as tropical wet and dry, meaning that it is warm all year round and divided into two distinct seasons, the wet season and the dry season, rather than spring, summer, fall and winter. The rainy season lasts from May through October, and the dry season runs from December to April.

CAN THO
As located in Mekong River Delta, thus, Can Tho weather belongs to Weather in Mekong River Delta. Temperature in Can Tho changes seasonally.

Can Tho weather is typified by features of the tropical monsoon climate, reflecting the influence of the Southwest circulation from the Indian Ocean. Can Tho climate has two distinct seasons: rainy season and dry season.

HUE
Hue is well known among Vietnamese for its lasting drizzle by the end or early in the year. Despite the gloomy sky that the tiny rain drops involved, it is said to add more soul to Hue sceneries, especially the Perfume River and the Old citadel.

HOI AN
Unlike Northern Vietnam, Hoi An is a city of two seasons with warm weather averaging 29°C dominating for most of the year. The wet monsoon season spans the months from September through to January with a dry season for the rest of the year.

Most days temperatures average between 25°C and 30°C with the hottest months being June and July.

SA PA
Sa Pa, the famous tourist town in northern mountainous region of Vietnam boasts a fabulous mélange of temperate and subtropical climate. At the altitude of 1,600m, the town enjoys cool climate all year round, with average temperature of 15°C.

HALONG BAY
Halong's climate is humid and tropical. With a hot, humid summer and dry, cold winter; Halong’s temperature varies from 15ºC to 25ºC.

Annual rainfall is between 2000mm and 2200mm. Halong bay has typical diurnal tide system (tide amplitude ranges from 3.5-4m). The salinity is from 31 to 34.5MT in dry season and lower in rainy season.

HANOI
Many people take it for granted that Vietnam is a tropical country, which can be translated into a year-round over-heated weather. In fact, Hanoi has four seasons and each month differs from another in terms of humidity, temperature and of course, seasonal fares.

Weather information obtained/edited for use on our website from http://www.vietnam-guide.com/, http://www.holiday-weather.com/; http://www.weatherbase.com/weather/city.php3?c=VN&name=Vietnam; and https://www.vietnamonline.com/destination/hue/hue-weather.html

Cambodia's climate, like that of the rest of Southeast Asia, is dominated by monsoons, which are known as tropical wet and dry because of the distinctly marked seasonal differences.

Cambodia has a temperature range from 21 to 35 °C (70 to 95 °F) and experiences tropical monsoons. Southwest monsoons blow inland bringing moisture-laden winds from the Gulf of Thailand and Indian Ocean from May to October. The northeast monsoon ushers in the dry season, which lasts from November to April. The country experiences the heaviest precipitation from September to October with the driest period occurring from January to February.

Cambodia has two distinct seasons. The rainy season, which runs from May to October, can see temperatures drop to 22 °C (72 °F) and is generally accompanied with high humidity. The dry season lasts from November to April when temperatures can rise up to 40 °C (104 °F) around April. Disastrous flooding occurred in 2001 and again in 2002, with some degree of flooding almost every year.

PHNOM PENH

Phnom Penh has a tropical wet and dry climate (Köppen climate classification Aw). The climate is hot year-round with only minor variations.

- Cool season: November- March (22-28c) 
- Hot season: March- May (28c -38c) 
- Rainy season: May - October (24-32c, with humidity up to 90%.)

The city temperatures range from 15 to 38 C and experiences tropical monsoons. Monsoons blow from the Southwest inland, bringing moisture-laden winds from the Gulf of Thailand and Indian Ocean from May to October. The northeast monsoon ushers in the dry season, which lasts from November to March. The city experiences the heaviest precipitation from September to October with the driest period occurring from January to February.

Weather information obtained/edited for use on our website from https://en.wikipedia.org/wiki/Phnom_Penh#Climate, http://www.holiday-weather.com/, https://en.wikipedia.org/wiki/Cambodia#Climate, https://www.tourismcambodia.com/travelguides/provinces/phnom-penh.htm