Long Xuyên climate
Long Xuyên (Vietnam) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 28 °C82 °F, and about 1,265 mm50 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Long Xuyên climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3290 | 2170 | 2780 | 160.6 |
| Feb | 3595 | 2271 | 2883 | 90.3 |
| Mar | 3698 | 2474 | 3086 | 190.7 |
| Apr | 3798 | 2578 | 3188 | 431.7 |
| May | 3492 | 2578 | 3085 | 1305.1 |
| Jun | 3188 | 2576 | 2882 | 2098.2 |
| Jul | 3086 | 2476 | 2781 | 1696.6 |
| Aug | 3086 | 2475 | 2781 | 1606.3 |
| Sep | 3086 | 2475 | 2781 | 1887.4 |
| Oct | 3086 | 2475 | 2780 | 1887.4 |
| Nov | 3086 | 2373 | 2780 | 1034.0 |
| Dec | 3087 | 2271 | 2679 | 341.3 |
| Year | 3798 | 2170 | 2882 | 1,26550 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 71% | 57% | 5.0 | 11:35 |
| Feb | 63% | 53% | 5.5 | 11:47 |
| Mar | 60% | 55% | 5.7 | 12:03 |
| Apr | 61% | 61% | 5.9 | 12:21 |
| May | 74% | 82% | 5.4 | 12:36 |
| Jun | 83% | 86% | 5.0 | 12:44 |
| Jul | 85% | 87% | 4.8 | 12:40 |
| Aug | 86% | 88% | 4.9 | 12:28 |
| Sep | 86% | 88% | 4.8 | 12:10 |
| Oct | 86% | 82% | 4.8 | 11:53 |
| Nov | 84% | 75% | 4.8 | 11:38 |
| Dec | 79% | 69% | 4.8 | 11:31 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Long Xuyên is like
The warmest month is April, with an average high of 37 °C98 °F and a low of 25 °C78 °F. The coldest is December, when highs average 30 °C87 °F and lows 22 °C71 °F. Seasonal differences are small — just 4.9 °C8.9 °F between the warmest and the coolest month.
It is wet, with about 1,265 mm50 in of precipitation per year. The wettest three-month stretch is June–August, which brings 42% of the annual total. Months with less than 20 mm0.8 in on average: January–March. The wettest month is June (209 mm8.2 in), the driest is February (9 mm0.3 in).
Relative humidity ranges from 60% in March to 86% in October. The clearest skies (lowest average cloud amount, 53%) are typical of February. Average wind speed near the ground ranges from 7 km/h (4 mph) in October to 11 km/h (7 mph) in August. Daylight lasts from about 11.5 hours in December to 12.7 hours in June.
Best time to visit Long Xuyên
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December and January: average highs of 30 °C87 °F to 32 °C90 °F with 16 mm0.6 in to 34 mm1.3 in of precipitation per month.
The most challenging month is June, which is hot, with average highs of 31 °C88 °F, very wet (209 mm8.2 in) and humid (83% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Long Xuyên
- Wetter months (May–October) — highs 3086 to 34 °C92 °F, lows 2475 to 25 °C78 °F, about 174 mm6.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Drier months (November–April) — highs 3086 to 37 °C98 °F, lows 2170 to 25 °C78 °F, about 37 mm1.5 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Long Xuyên compares
Compared with Cần Thơ, about 55 km to the southeast, Long Xuyên is on average 0.4 °C0.6 °F warmer and receives 12% less precipitation (1,265 mm50 in vs 1,442 mm57 in). The difference is largest in February (0.6 °C1.1 °F warmer).
Of the 75 places in Vietnam covered by World Climates, Long Xuyên is the 7th warmest by annual mean temperature and the 66th wettest by annual precipitation. See all of them on the Vietnam climate page.
Places in other countries with the most similar temperature and rainfall pattern: Takeo (Cambodia, Aw), Phnom Penh (Cambodia, Aw) and Puntarenas (Costa Rica, Aw).
The same NASA POWER grid cell also contains Sa Dec (pop. 214,610), Cao Lãnh (pop. 211,912), Thốt Nốt (pop. 158,225) and Quận Đức Thịnh (pop. 132,000). Their long-term averages in this dataset are essentially the same as for Long Xuyên, so they do not have separate pages.
Nearby places
- Hồng Ngự 47 km · 28 °C83 °F · 1,199 mm47 in
- Tân Châu 51 km · 28 °C82 °F · 1,287 mm51 in
- Cần Thơ 55 km · 27 °C81 °F · 1,442 mm57 in
- Rạch Giá 57 km · 28 °C82 °F · 1,477 mm58 in
- Tịnh Biên 59 km · 28 °C82 °F · 1,355 mm53 in
- Vĩnh Long 61 km · 28 °C82 °F · 1,381 mm54 in
- Ngã Bảy 76 km · 28 °C82 °F · 1,442 mm57 in
- Takeo 98 km · 28 °C82 °F · 1,287 mm51 in
Frequently asked questions
What is the warmest month in Long Xuyên?
April is the warmest month in Long Xuyên, with an average high of 37 °C (98 °F) and an average low of 25 °C (78 °F).
What is the coldest month in Long Xuyên?
December is the coldest month, with an average high of 30 °C (87 °F) and an average low of 22 °C (71 °F).
When does it rain the most in Long Xuyên?
June is the wettest month with about 209 mm (8.2 in) of precipitation; February is the driest with about 9 mm (0.3 in).
What is the best time to visit Long Xuyên?
Judging by long-term averages, the most comfortable months are December and January.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.