Visit Sapa in Vietnam
Balancing on the edges of a rice field with endless views. A trek through the valley of Sapa is definitely a must for the bucket list.
Cao Lãnh, Dong Thap, Vietnam has a consistently very warm climate year-round, with daytime highs averaging 33°C (91°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
In Cao Lãnh temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a very warm 32°C (90°F) in December to a very hot 36°C (97°F) in April. Nighttime lows range from 26°C (79°F) in April to 23°C (73°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Cao Lãnh by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. April, the city's warmest month, gets 263 hours of sunshine.
The chart below shows the average temperature throughout the year:
Average high and low temperatures for each day of the month based on long-term records. 30-year average (1992-2025)
Browse day-by-day temperature records for Cao Lãnh spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
The map below shows the annual temperature across Vietnam. You can also select individual months if you want to compare a specific time of year.
Cao Lãnh's average annual maximum temperature is 33°C (91°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.
Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Cao Lãnh, December is the coolest month, with average highs of 32°C (90°F) and humidity around 83%, considered very high. In April, the warmest month, temperatures average 36°C (97°F) with 80% humidity, conditions that feel very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Cao Lãnh's weather, including monthly rainfall, sunshine hours, and humidity, visit our Cao Lãnh climate page.
Pick a month to see the average temperature, rainfall and sunshine in Cao Lãnh - and find the best time to visit.
Temperature Rainfall Sunshine Humidity
See the full Cao Lãnh climate overview or explore weather in Vietnam.
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