:9 These mountains have the highest rainfall in the country. :40 The coldest month is January where minimum temperatures can occasionally fall below 0 °C (32 °F). The nearest to pure forest types are the pines—the three-needled Pinus khasya and the two-needled P. merkusii found in the uplands—and the mangrove forests of the coastal areas. Temperature in Vietnam averaged 23.70 celsius from 1825 until 2015, reaching an all time high of 28.56 celsius in June of 2015 and a record low of 16.56 celsius in January of 1918. , The diverse topography, wide range of latitudes (Vietnam spans over 15° of latitude), and influences from the South China Sea lead to climatic conditions varying significantly between regions. High increases of 0.24℃ and 0.28℃ per decade are found at Vung Tau and Ca Mau stations, respectively, located in the South Coast. However, unlike the northwest, dry conditions are rare due to a low frequency of westerly winds. The summer in northern Vietnam lasts from April or May to October and is characterized by heat, heavy rainfall, and occasional typhoons. Grass and sedge swamps are characteristic of the Thap Muoi Plain (Plain of Reeds), a depression in the Mekong delta. :30 The lowest mean annual temperatures are found in the mountainous areas where the altitude is higher and in northern areas due to their higher latitudes. :28, In general, the northern parts of the country have four seasons: winter, spring, summer, and fall (autumn). Vietnam is considered, in coming decades, ... average annual temperatures in the coastal zones of Vietnam have increased significantly. :40 The region averages between 1,500 and 1,700 hours of sunshine per year.  As one progresses southward, the rainy season shifts away from the end of year (occurs more earlier) and vice versa. In central and southern Vietnam the southwest monsoon winds between June and November bring rains and typhoons to the eastern slopes of the mountains and the lowland plains. :11, The South corresponds to the Southeast region, and the Mekong Delta region. This page includes a chart with historical data for Vietnam Average Temperature. :40 The climate is strongly influenced by the northeast monsoon. Vietnam - Vietnam - Climate: The northern part of Vietnam is on the edge of the tropical climatic zone. Vietnam is considered, in coming decades, to be among the most affected countries by global climate change. Other common wild animals are wild pigs, porcupines, jackals, otters, mongooses, hares, skunks, and squirrels, including flying squirrels. Download historical data for 20 million indicators using your browser. :11 Northern parts of the region (Quang Nam and Quang Ngai) receive more rainfall than in the southern parts of the region (Binh Thuan and Ninh Thuan). :10 The average annual amount of sunshine hours is 1,800 to 2,000. :42 This is usually during March and April. :24, The Northwest region includes the provinces of Lai Châu, Sơn La, and Điện Biên. Climate and Average Weather in Vietnam. (Figure 1) Figure 1. Vietnam's climate is strongly influenced by its location to the adjacent sea in all seasons. :35, Based on geographic and climatic conditions, there are 7 different climatic regions in Vietnam::26 Northwest, Northeast, North Delta (Red River Delta), North Central (North Central Coast), South Central (South Central Coast), Central Highlands, and the South. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The winter season in northern Vietnam lasts from November to April; from early February to the end of March there is a persistent drizzle, and March and April are sometimes considered to be a transitional period. :27 Cold weather, occasionally extreme cold can persist for a long time, being characterized by a long stretch of cloudless or partly cloudy days in the first half of winter or a long stretch of cloudy and drizzly conditions in the latter half of winter. :28 In addition, during summer, Vietnam is influenced by tropical air from the Bay of Bengal which occurs when a continental low pressure originating from South Asia (South Asian continental low) moves eastwards towards Vietnam, covering almost all of Vietnam and southern China; this causes hot, dry weather in the North Central Coast as westerly winds descend and warm adiabatically on the eastern slopes of the Annamite Range (Truong Son range). :40 Winters are characterized as being cold with large amounts of drizzle and few sunshine while summers are hot, rainy with few dry days.  For ground temperatures, the lowest ground temperature ever record was −6.4 °C (20.5 °F) in Sa Pa in 31 December 1975 while the highest was 74.7 °C (166.5 °F) in Buôn Ma Thuột in 23 May 1982. :33 Islands located in the north general receive less rainfall than the adjacent mainland while in the south, this is reversed where islands such as Phu Qouc receive more rainfall than the adjacent mainland. Deer are plentiful and include the small musk deer and muntjac (barking deer). :11, The Central Highlands (Tay Nguyen) includes Kon Tum Province, Gia Lai Province, Dak Lak Province, Dak Nong Province, and Lam Dong Province. In most areas the forests are mixed, containing a great variety of species within a given area. :33 Drizzle is a weather phenomenon that is characteristic of the weather in winter in the north and north central coast. :24 Generally, northern parts of the country receive more rainfall than southern parts of the country. Crocodiles are found on the edges of some lakes and along riverbanks; other reptiles include several kinds of lizards, pythons, and cobras. Of the wide variety of land and water birds, some 600 species have been identified in southern Vietnam alone. :41, Mean annual temperatures are around 25 to 27 °C (77 to 81 °F) in which the coldest month has a mean temperature of 22 to 25 °C (72 to 77 °F) and the hottest month has a mean temperature of 28 to 30 °C (82 to 86 °F). Wild game in the central highlands includes elephants and tapirs; Sumatran rhinoceroses, believed to have become extinct by the 1960s, were sighted in the 1990s. :40 Winters are dry while summers are characterized by high rainfall. :31 In contrast, temperatures in the Spratly Islands never falls below 21 °C (70 °F). Farther south, the average annual temperature in Hue is 77 °F (25 °C) and in Ho Chi Minh City is 81 °F (27 °C); in the highland city of Da Lat, it drops to 70 °F (21 °C). :31 In summer, mean temperatures vary between 25 to 30 °C (77 to 86 °F). :31 Many mountainous areas in the north have experienced subzero conditions. The forests of Vietnam can be divided into two broad categories: evergreen forests, which include conifers, and deciduous forests. The climate in Vietnam differs greatly between north and south, though both regions experience monsoons.  The average annual sunshine hours ranges from 2,400 to 3,000. The humidity ranges around 80%. :42 The climate of the south is strongly influenced by the southwest monsoon. :27 Because all of Vietnam lies between the southern and northern limit of the polar front, Vietnam's climate are both influenced by polar air and tropical air (from the tropical convergent zone). :40 The cold comes earlier than other provinces. :9 In the Hoang Lien Son mountains, winters are cold where snowfall and hoarfrost can occasionally occur. :24 20% of Vietnam's total surface area is low-elevation coastal area making the country highly vulnerable to climate change effects and the rising sea levels in particular. :40 The average annual amount of sunshine hours is 2,000 to 2,500. :39:10 Valleys are sheltered from wind, leading to a longer dry season and lower annual rainfall. :11 The highest temperatures occur in late winter and early summer. :29, The highest wind recorded in Vietnam was 59 m/s (190 ft/s) in Quy Nhon in September 1972 although wind velocities over 40 m/s (130 ft/s) have been recorded in the North Delta (Red River Delta), and coastal areas of Quang Ninh Province:29. In fact, the weather varies significantly by latitude and longitude. :36–37 Thunderstorms can occur year-round although they are the most common during the rainy season. It allows API clients to download millions of rows of historical data, to query our real-time economic calendar, subscribe to updates and receive quotes for currencies, commodities, stocks and bonds.  A large number of studies show that Vietnam is experiencing climate change and will be severely negatively affected in coming decades. :10 The dry season usually lasts for 4–5 months. :11, Mean annual temperatures are around 24 to 25 °C (75 to 77 °F) in which the coldest month has a mean temperature of 17 to 20 °C (63 to 68 °F) and the hottest month has a mean temperature of 29 to 30 °C (84 to 86 °F). The annual average temperature ranges from 22°C to 27°C year-round. Because Vietnam is affected by the monsoon, that why the average temperature is lower than the other countries which are located in the same longitude in Asia. :40 Winters are characterized by cold, cloudy weather with frequent drizzle, being under the influence of the northeast monsoon. Saigon, Vietnam - Monthly weather averages including average high and low Temperature, Precipitation, Pressure, Wind Charts to assist you in planning your travel, holiday or an outdoor activity at Saigon, Vietnam Tweet. :27 In Vietnam, the monsoon circulation is a combination of both the South Asian and Northeast Asian monsoon systems. :42 It also includes some parts of Binh Thuan Province. :27 This leads to cold temperatures where temperatures drop by 4 to 5 °C (7 to 9 °F). :27 Cold weather occurs more frequently in the north than in the south due to cold fronts penetrate the north more frequently. Between the logged areas and the upland forests are other mixtures of forest types. :36 Days with thunderstorms occur 20–80 days per year, which are more common in the south and north, and more common in mountainous areas than coastal delta. :30:24 At the highest altitudes in the Hoang Lien Son range, mean annual temperatures is only 8 °C (46 °F).  Average annual rainfall in coastal areas is approximately 1,600 to 1,700 mm (63 to 67 in). :25 In the north, the climate is monsoonal with four distinct seasons (Spring, Summer, Autumn, and Winter) while in the south (areas south of the Hải Vân Pass), the climate is tropical monsoon with two seasons (rainy and dry).  These climatic regions are based on time of rainy season and other climatic elements such as insolation, sunshine, temperature, precipitation, and humidity. :40 Winters are warm and sunny while summers are hot and dry owing to a high frequency of the westerly winds. :40:10 Summers are characterized by hot, dry weather owing to westerly winds. Vietnam is geographically located in the tropical zone, with the top North region on temperate zone. Three species of hoofed mammals—the saola, giant muntjac, and Truong Son muntjac—were discovered in the 1990s. :42 Mean annual temperatures in coastal areas are around 27 °C (81 °F) that is fairly even throughout the year with little difference between the coldest and hottest months of the year. :29 The lowest air pressure ever recorded was at Sa Pa on 24 July 1971 with a reading of 827.0 hPa (24.42 inHg). A north-south variation has also emerged among the ethnic Vietnamese as they have expanded southward from the Red River delta along the coastal plain and into the Mekong delta. :41 Sunshine hours are higher in the northeastern parts of the region where they exceed over 2,700 hours per year while in the west, it is around 2,300 hours per year.
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