Hồng Ngự climate

Vietnam · 10.80°N, 105.35°E · elevation 13 m · population 101,155

Warmest month
April
high 37 °C99 °F
Coldest month
December
low 21 °C71 °F
Wettest month
June
202 mm7.9 in
Best time to visit
December
by our comfort score
Annual precipitation
1,199 mm47 in
February driest
Year average
28 °C83 °F
tropical savanna (dry winter) (Aw)

Hồng Ngự (Vietnam) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 28 °C83 °F, and about 1,199 mm47 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
20°25°30°35°40°70°80°90°100°JFMAMJJASOND37°99°21°70°January: high 33 °C / 92 °F, low 21 °C / 70 °FFebruary: high 36 °C / 96 °F, low 22 °C / 72 °FMarch: high 37 °C / 99 °F, low 24 °C / 76 °FApril: high 37 °C / 99 °F, low 26 °C / 78 °FMay: high 34 °C / 93 °F, low 25 °C / 78 °FJune: high 31 °C / 89 °F, low 25 °C / 76 °FJuly: high 31 °C / 87 °F, low 24 °C / 75 °FAugust: high 30 °C / 87 °F, low 24 °C / 75 °FSeptember: high 30 °C / 86 °F, low 24 °C / 75 °FOctober: high 30 °C / 86 °F, low 24 °C / 74 °FNovember: high 31 °C / 87 °F, low 23 °C / 73 °FDecember: high 31 °C / 88 °F, low 21 °C / 71 °F

Precipitation by month

Precipitation per month (mminches)
05010015020025002468JJanuary: 13 mm / 0.5 inFFebruary: 8 mm / 0.3 inMMarch: 18 mm / 0.7 inAApril: 45 mm / 1.8 inMMay: 128 mm / 5.0 inJJune: 202 mm / 7.9 inJJuly: 154 mm / 6.1 inAAugust: 147 mm / 5.8 inSSeptember: 175 mm / 6.9 inOOctober: 183 mm / 7.2 inNNovember: 97 mm / 3.8 inDDecember: 30 mm / 1.2 in2027.9

Hồng Ngự climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan339221702781130.5
Feb36962272298480.3
Mar379924763187180.7
Apr379926783188451.8
May3493257830851285.0
Jun3189257628822027.9
Jul3187247527811546.1
Aug3087247527811475.8
Sep3086247527811756.9
Oct3086247427801837.2
Nov318723732780973.8
Dec318821712679301.2
Year3799217028831,19947

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan66%57%5.011:33
Feb58%53%5.511:46
Mar56%55%5.712:02
Apr59%61%5.912:21
May73%82%5.412:37
Jun82%86%5.012:45
Jul84%87%4.812:42
Aug84%88%4.912:28
Sep85%88%4.812:10
Oct86%82%4.811:52
Nov83%75%4.811:37
Dec75%69%4.811:30

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 Hồng Ngự is like

The warmest month is April, with an average high of 37 °C99 °F and a low of 26 °C78 °F. The coldest is December, when highs average 31 °C88 °F and lows 21 °C71 °F. Seasonal differences are small — just 5.1 °C9.1 °F between the warmest and the coolest month.

It is wet, with about 1,199 mm47 in of precipitation per year. The wettest three-month stretch is August–October, which brings 42% of the annual total. Months with less than 20 mm0.8 in on average: January–March. The wettest month is June (202 mm7.9 in), the driest is February (8 mm0.3 in).

Relative humidity ranges from 56% 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 6 km/h (4 mph) in October to 10 km/h (6 mph) in August. Daylight lasts from about 11.5 hours in December to 12.8 hours in June.

Best time to visit Hồng Ngự

Based on these averages, the most comfortable months for sightseeing and outdoor activities are December: average highs of 31 °C88 °F to 31 °C88 °F with 30 mm1.2 in to 30 mm1.2 in of precipitation per month.

The most challenging month is June, which is hot, with average highs of 31 °C89 °F, very wet (202 mm7.9 in) and humid (82% 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 Hồng Ngự

  • Wetter months (May–October) — highs 3086 to 34 °C93 °F, lows 2474 to 25 °C78 °F, about 165 mm6.5 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 3187 to 37 °C99 °F, lows 2170 to 26 °C78 °F, about 35 mm1.4 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.

How Hồng Ngự compares

Compared with Tân Châu, about 12 km to the west, Hồng Ngự has practically the same average temperature and receives 7% less precipitation (1,199 mm47 in vs 1,287 mm51 in).

Of the 75 places in Vietnam covered by World Climates, Hồng Ngự is the 2nd warmest by annual mean temperature and the 69th 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).

Nearby places

  • Tân Châu 12 km · 28 °C82 °F · 1,287 mm51 in
  • Long Xuyên 47 km · 28 °C82 °F · 1,265 mm50 in
  • Tịnh Biên 51 km · 28 °C82 °F · 1,355 mm53 in
  • Takeo 65 km · 28 °C82 °F · 1,287 mm51 in
  • Vĩnh Long 91 km · 28 °C82 °F · 1,381 mm54 in
  • Rạch Giá 92 km · 28 °C82 °F · 1,477 mm58 in
  • Phnom Penh 97 km · 28 °C83 °F · 1,242 mm49 in
  • Cần Thơ 97 km · 27 °C81 °F · 1,442 mm57 in

All places in Vietnam

Frequently asked questions

What is the warmest month in Hồng Ngự?

April is the warmest month in Hồng Ngự, with an average high of 37 °C (99 °F) and an average low of 26 °C (78 °F).

What is the coldest month in Hồng Ngự?

December is the coldest month, with an average high of 31 °C (88 °F) and an average low of 21 °C (71 °F).

When does it rain the most in Hồng Ngự?

June is the wettest month with about 202 mm (7.9 in) of precipitation; February is the driest with about 8 mm (0.3 in).

What is the best time to visit Hồng Ngự?

Judging by long-term averages, the most comfortable months are December.

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.

Sources and method