Viet Tri Climate & Monthly Temperature Overview – Vietnam

Summer (March to May)

Summer in Viet Tri is characterized by high temperatures and occasional rainfall. Average temperatures range from 25°C (77°F) to 32°C (90°F), with humidity levels often exceeding 80%. April and May are the warmest months, with temperatures reaching their peak. Rainfall is sporadic during this season, generally occurring in short, heavy bursts. The average rainfall in summer is around 150-200mm.

Winter (October to February)

Winters in Viet Tri are relatively mild and dry, with average temperatures ranging from 15°C (59°F) to 22°C (72°F). Humidity levels drop significantly to around 60-70%. December and January are the coldest months, with temperatures occasionally dipping below 10°C (50°F). Rainfall is infrequent during this season, with most precipitation occurring in the form of light drizzle or mist. The average rainfall in winter is around 50-100mm.

Average Temperature in Viet Tri, Vietnam

Viet Tri, the capital city of Phu Tho province in northern Vietnam, experiences a subtropical climate characterized by distinct wet and dry seasons. The average temperature throughout the year varies significantly, influenced by seasonal changes and the city’s proximity to the Red River Delta.

During the dry season, which typically runs from November to April, Viet Tri enjoys warm and sunny weather. The average temperature during this period ranges from 18 to 25 degrees Celsius (64 to 77 degrees Fahrenheit). However, the temperature can occasionally dip below 15 degrees Celsius (59 degrees Fahrenheit) during the coldest months of December and January. The humidity levels are relatively low during this time, making it a pleasant time to visit the city.

In contrast, the wet season, which spans from May to October, brings abundant rainfall and higher humidity. The average temperature during these months ranges from 27 to 32 degrees Celsius (80 to 90 degrees Fahrenheit). The humidity levels also increase, often reaching over 80%. Tropical storms and typhoons are more common during this season, and flash flooding can occur in some areas.

Cloud Types

Viet Tri, Vietnam experiences various cloud types throughout the year. During the monsoon season, thick cumulonimbus clouds dominate the sky, bringing heavy rainfall and occasional thunderstorms. These clouds often form tall towers with anvil-shaped tops, characteristic of towering cumulus clouds. When the monsoon season subsides, cirrus clouds become more prevalent. These thin, wispy clouds consist of ice crystals and are often seen in the upper atmosphere. Additionally, stratus clouds, characterized by their uniform gray layer, are common during the dry season and often bring drizzle or light rain.

Cloud Cover and Precipitation

Cloud cover in Viet Tri varies significantly depending on the time of year. During the monsoon season, cloud cover is extensive, often reaching 100%. This leads to frequent precipitation, with rainfall amounts exceeding 100 inches annually. In contrast, during the dry season, cloud cover is typically reduced, allowing more sunshine and less rainfall. The average monthly rainfall during this period is around 2 inches. The variation in cloud cover and precipitation is closely linked to the seasonal changes in wind patterns and the monsoon system that affects Southeast Asia.

Annual Precipitation:

Viet Tri, Vietnam experiences significant precipitation throughout the year, amounting to an average of 1,600 mm (63 inches) annually. The wettest months are May to October, with heavy rainfall coinciding with the monsoon season. During these months, the city can receive more than 200 mm (8 inches) of rain per month. The driest months are December and January, with average precipitation below 50 mm (2 inches).

Seasonal Variations:

Precipitation in Viet Tri varies considerably based on the season. The monsoon season, which typically lasts from May to October, brings heavy rainfall to the city. The southwest monsoon winds carry moisture from the Bay of Bengal, resulting in frequent thunderstorms and downpours. During this time, the city experiences significant flooding in some areas. In contrast, the dry season, from November to April, is characterized by less precipitation and more temperate temperatures. The northeast monsoon winds blow from China, bringing cooler and drier air to the region.

Rainfall Patterns in Viet Tri, Vietnam

Viet Tri, located in the northern region of Vietnam, experiences significant variation in rainfall throughout the year. The rainy season typically spans from May to October, with the highest rainfall occurring during the months of July and August. During this period, heavy downpours are common, leading to flooding and landslides. The annual rainfall in Viet Tri averages around 1,800 millimeters, contributing to the lush vegetation and agriculture in the area.

In contrast to the wet season, the dry season from November to April is characterized by relatively low rainfall. During this time, temperatures can drop significantly, particularly in the mountainous areas surrounding Viet Tri. The city experiences minimal precipitation during these months, with occasional light drizzle or mist. However, rainfall can still occur during the dry season, often brought by cold fronts or storms from the north.

Historical Snowfall Events in Viet Tri

Snowfall in Viet Tri, Vietnam, is an extremely rare occurrence due to its location in the tropical regions. However, on a few occasions throughout history, snowfall has been recorded in the city. Notably, in January 1999, Viet Tri experienced a brief but significant snowfall that lasted for approximately an hour. This event caused widespread surprise and excitement among the local population, as it was the first time snowfall had been seen in the city in living memory.

Causes of Snowfall in Viet Tri

While snowfall is generally not common in tropical regions, it can occur under certain specific atmospheric conditions. In the case of Viet Tri, snowfall is typically caused by cold air masses originating from Siberia or northern China. These cold air masses can bring frigid temperatures and moisture to the region, which, when combined with a drop in temperature, can lead to snowfall. Additionally, the mountainous terrain surrounding Viet Tri can contribute to snowfall by providing a cooler environment at higher elevations.

Sunrise and Sunset Times in Viet Tri, Vietnam

The timing of sunrise and sunset in Viet Tri, Vietnam, varies throughout the year due to the Earth’s orbit around the Sun. Generally, the sun rises between 5:30 and 6:30 am and sets between 6:00 and 7:00 pm local time. However, the exact times may vary by a few minutes each day. During the summer months (June to August), the sun rises earlier and sets later, resulting in longer days. Conversely, during the winter months (December to February), the sun rises later and sets earlier, leading to shorter days.

Factors Influencing Sunrise and Sunset Times

Several factors influence the precise timing of sunrise and sunset in Viet Tri, Vietnam. These include the latitude of Viet Tri (21.4034° North), the tilt of the Earth’s axis, and the time of year. The latitude determines the angle at which the Sun’s rays strike the Earth’s surface, affecting the length of daylight hours. The tilt of the Earth’s axis causes the Sun’s position in the sky to vary throughout the year, resulting in seasonal changes in sunrise and sunset times. The time of year plays a crucial role, as the Earth’s orbit around the Sun is not perfectly circular, leading to longer days during the summer and shorter days during the winter.

Moon Festival in Viet Tri

The Moon Festival, also known as Mid-Autumn Festival, is a significant celebration in Vietnamese culture, and Viet Tri is no exception. During this time, the city is adorned with colorful lanterns and mooncakes, the traditional delicacy of the festival. Locals gather in parks and public spaces to enjoy the festive atmosphere, indulge in mooncakes, and watch lion and dragon dance performances. The festival is a vibrant blend of tradition and modern-day festivities, offering visitors a unique glimpse into Vietnamese customs and celebrations.

Lanterns and Decorations

Viet Tri’s streets and landmarks are illuminated with a myriad of lanterns during the Moon Festival. These lanterns come in various shapes and designs, from traditional paper lanterns depicting mythical creatures to modern LED lanterns featuring contemporary motifs. The city’s iconic Viet Tri Bridge, which spans the Red River, is adorned with thousands of lanterns, creating a breathtaking spectacle that attracts locals and tourists alike. The vibrant decorations and festive atmosphere transform Viet Tri into a magical realm, symbolizing the hope and happiness associated with the Mid-Autumn Festival.

Causes of Humidity in Viet Tri, Vietnam

Viet Tri, Vietnam experiences high humidity due to several factors. The city is located in the tropical monsoon climate zone, which is characterized by warm, humid conditions year-round. The city is also situated in the Red River Delta, where the river’s presence contributes to high humidity levels. Additionally, Viet Tri is surrounded by mountains, which trap moisture and prevent it from escaping.

Effects of Humidity on Viet Tri, Vietnam

The high humidity in Viet Tri can have several negative effects on the city. High humidity levels can make it difficult to breathe, leading to respiratory problems and heat exhaustion. It can also damage buildings and infrastructure, as well as promote the growth of mold and mildew. Additionally, humidity can lead to increased energy consumption, as air conditioning is necessary to regulate indoor temperatures.

Wind Characteristics

Viet Tri, Vietnam, experiences a humid subtropical climate with distinct wet and dry seasons. The wind patterns in Viet Tri are predominantly influenced by the monsoon winds, which change direction seasonally. During the northeast monsoon season (October to March), the wind blows from the northeast, bringing cold and dry air from the Asian continent. This results in relatively calm winds with speeds typically ranging between 2.2 and 4.5 m/s (8-16 km/h).

Seasonal Variations

In the southwest monsoon season (April to September), the wind direction reverses and blows from the southwest, carrying warm and moist air from the Pacific Ocean. This shift in wind direction leads to increased wind speeds, with gusts reaching up to 11.2 m/s (40 km/h) during the peak of the season, which occurs in July. The stronger winds during the southwest monsoon season create favorable conditions for wind energy generation.

Best Time to Visit Viet Tri for Pleasant Weather:

The most favorable time to visit Viet Tri for pleasant weather is during the autumn months, from September to November. During this period, the city experiences mild temperatures, with average highs ranging between 26°C and 30°C. Humidity levels are also relatively low, making it comfortable to explore the city and its surroundings. Moreover, the autumn foliage creates a picturesque landscape, adding to the charm of Viet Tri.

Best Time to Visit Viet Tri for Festivals and Events:

If you’re interested in immersing yourself in vibrant cultural experiences, consider visiting Viet Tri during the spring or summer months. The spring festival, celebrated in March and April, showcases traditional music, dance, and culinary delights. The summer months, from May to August, offer numerous opportunities to witness outdoor festivals and events, including the boat racing competition on the Lo River and the Ao Dai festival, which celebrates the traditional Vietnamese dress.

Potential for Solar Energy:

Viet Tri enjoys abundant sunshine, with an average of 5.5-6.5 kWh/m2/day. This makes the city highly suitable for developing solar energy projects. The installation of solar panels on rooftops, open fields, and even agricultural land has gained significant momentum. The government’s supportive policies, such as the preferential feed-in tariff mechanism, have further encouraged investment in this sector.

Challenges and Opportunities:

Despite the potential, Viet Tri faces challenges in fully harnessing its solar energy resources. The high upfront investment costs and the need for reliable and consistent grid connectivity can hinder the development of large-scale solar projects. However, emerging technologies, such as floating solar panels and advanced grid management systems, provide opportunities to overcome these barriers. Additionally, the government’s commitment to increasing the share of renewable energy in the national grid presents a strong market opportunity for solar developers.

Relief and Watersheds

Viet Tri, a city nestled in northeastern Vietnam, is characterized by a diverse topography that encompasses mountainous terrain, rolling hills, and flatlands. The city’s eastern and western extremities are flanked by two distinct mountain ranges: the Tam Dao Mountains and the Ba Vi Mountains, respectively. These ranges form natural barriers and watersheds, contributing to the region’s unique hydrological features. Numerous rivers and streams cascade through the landscape, including the Red River and the Lo River, which converge near the city center. The Red River Basin, which drains much of northern Vietnam, plays a crucial role in the agricultural and economic development of Viet Tri and its surroundings.

Lowlands and Agricultural Predominance

The central portion of Viet Tri comprises a vast expanse of fertile lowlands, where agriculture flourishes. This region is characterized by gentle topography and ample water resources, making it ideal for rice cultivation and other agricultural activities. The flatlands are interspersed with small hills and ridges, which offer panoramic views of the surrounding countryside. The presence of numerous waterways and irrigation systems ensures a reliable water supply for agricultural practices, contributing to the city’s status as a significant agricultural hub within the region.

Noi Bai International Airport (HAN)

Located approximately 70 kilometers from Viet Tri, Noi Bai International Airport (HAN) is the nearest airport catering to both domestic and international travelers. As the primary gateway to Hanoi, the capital city of Vietnam, HAN offers a wide range of flight options to major cities worldwide. The airport features two terminals, with Terminal 2 handling international flights and Terminal 1 accommodating domestic flights. Passengers can take a taxi, bus, or private car to travel to Viet Tri from the airport, which typically takes around 1.5 to 2 hours.

Cat Bi International Airport (HPH)

Cat Bi International Airport (HPH), located in Hai Phong, is another option for travelers visiting Viet Tri. Although slightly farther away at approximately 100 kilometers, HPH offers a more limited selection of flights compared to HAN. Nonetheless, there are direct flights from Cat Bi to several major cities in Vietnam, including Hanoi, Da Nang, and Ho Chi Minh City. From the airport, passengers can take a taxi or bus to reach Viet Tri, with the journey time estimated at around 2 to 2.5 hours.

History and Culture

In Viet Tri, Vietnam’s northwest, historical significance intertwines with cultural heritage. As the province of Phu Tho’s capital city, Viet Tri traces its roots back to the ancient kingdom of Van Lang. The Hung King Temple Complex, a UNESCO World Heritage Site, stands as a testament to its long and illustrious past. The city has a rich cultural tapestry, evident in its traditional festivals, notably the Hung Kings Festival, honoring the legendary founders of the Vietnamese nation. Viet Tri’s artisans are renowned for their intricate lacquerware, a craft passed down through generations.

Economy and Infrastructure

Viet Tri’s strategic location at the confluence of the Thac Ba and Red Rivers has driven its economic development. The city is a major industrial and commercial hub, with industries ranging from textiles to pharmaceuticals. It boasts a robust infrastructure, including a modern airport, a well-developed transportation system, and ample educational and healthcare facilities. Viet Tri is also a gateway to the scenic Da River, renowned for its picturesque landscapes and ecotourism potential. With its favorable business environment and abundance of natural resources, the city continues to attract investment and grow economically.