Climate change in Vietnam will lead to the fact that, in the coming decades, Vietnam will be among the countries most affected by global climate change. A large number of studies show that Vietnam is experiencing climate change and will be severely negatively affected in the coming decades. These negative impacts include sea level rise, saline intrusion and other hydrological problems such as floods, estuary changes, sedimentation as well as increased frequency of natural disasters such as cold waves, high tides. 

Some problems such as land subsidence (due to over-exploitation of groundwater) exacerbate some of the impacts that climate change will bring (sea level rise), especially in areas such as the Delta. Mekong River. Governments, NGOs and citizens have taken various measures to mitigate and adapt to the impact.

Although the Government has issued policies to limit greenhouse gas emissions, many people believe that it is difficult for Vietnam to achieve the reduction target.

Vietnam is in the top 10 most polluted countries in the world. Levels of unsafe particles are similar to those in major cities and industrial zones in China. The International Monetary Fund reports that Vietnam's greenhouse gas emissions will triple by 2030, primarily because of its reliance on fossil fuels for power generation.

Through different observations and research methods, scholars generally believe that in the past historical period and future forecasting models, throughout the territory of Vietnam, climate change signals have been detected. is determined through the change of the observed climate factors. In general, temperature and rainfall in general are on an increasing trend; frequency of extreme values ​​is increasing. Furthermore, the distribution of precipitation over time and space is more uneven.

According to daily data collected from 23 coastal meteorological stations of Vietnam during the period from 1960 to 2011, for 52 years (from 1960 to 2011), the average annual temperature in coastal areas of Vietnam has increased significantly. High increases of 0.24 ℃ and 0.28 ℃ per decade were found at the Vung Tau and Ca Mau stations, located in the South Coast, respectively. Most stations in the North Central region show an increase of 0.15 to 0.19 per decade.

Furthermore, the maximum temperature variation in Vietnam ranges from −3 °C to 3 °C. The variation of the minimum temperature mainly ranges from -5 °C to 5 °C. Both maximum and minimum temperatures have an increasing trend, where minimum temperature increases faster than maximum temperature, reflecting the warming trend of global climate.