Hồng Ngự weather in August

In August, Hồng Ngự sees average daytime highs of 32°C and overnight lows near 26°C, with 215 mm of rain across 27.8 wet days and about 12.4 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 1% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is Hồng Ngự's 11th-clearest and 1st-windiest month. For the whole year in context, see Hồng Ngự's year-round climate.

Daytime high
32°
6th warmest
Overnight low
26°
9th coldest
Rainfall
215 mm
27.8 wet days
Daylight
12 h 24 min
5:52 AM – 6:13 PM
Cloud cover
89%
11th clearest
Wind
11 km/h
1st windiest
Solar energy
4.82 kWh/m²
Travel score
2.3
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical August day in Hồng Ngự reaches about 32°C in the afternoon and slips back to 26°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13226
23226
33226
43226
53226
63226
73226
83226
93226
103226
113226
123226
133226
143226
153226
163226
173226
183226
193226
203226
213226
223226
233226
243226
253226
263226
273226
283226
293226
303226
313226

How August really feels in Hồng Ngự

Once humidity and wind are folded in, August averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Hồng Ngự weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°23411.44.9
Feb32° / 23°131.611.64.6
Mar34° / 25°356.611.93.1
Apr35° / 26°8713.512.22.3
May34° / 27°17023.612.52.1
Jun32° / 26°19826.512.62.2
Jul32° / 26°20827.212.62.4
Aug32° / 26°21527.812.42.3
Sep32° / 25°25427.912.12.2
Oct32° / 25°27626.311.82.5
Nov32° / 25°11314.811.53.6
Dec31° / 24°487.411.44.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 5% of August, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5694
6694
7694
8694
9694
10694
11694
12694
13694
14694
15694
16694
17694
18694
19694
20694
21595
22595
23595
24595
25595
26595
27595
28595
29595
30595
31595

Chance of precipitation in August

Any precipitation

Hồng Ngự gets around 215 mm of rain over 27.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 89% and peaks near 93% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
187
287
387
487
587
687
786
886
986
1086
1186
1286
1387
1487
1588
1688
1789
1889
1990
2091
2192
2292
2393
2493
2593
2693
2793
2893
2993
3093
3192

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the miserable band about 86% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11882
21882
31882
41882
51882
61783
71783
81783
91684
101684
111585
121585
131585
141486
151486
161486
171387
181387
191387
201288
211288
221189
231189
241189
251189
261090
271090
281090
291090
301090
311090

Wind in August

Winds average 11 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 30 min at the start of August to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over August. Sunrise moves from 5:50 AM to 5:52 AM, and sunset from 6:19 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:506:19
212.55:506:19
312.55:516:18
412.55:516:18
512.55:516:18
612.45:516:18
712.45:516:17
812.45:516:17
912.45:516:16
1012.45:516:16
1112.45:526:16
1212.45:526:15
1312.45:526:15
1412.45:526:14
1512.45:526:14
1612.45:526:13
1712.45:526:13
1812.35:526:13
1912.35:526:12
2012.35:526:12
2112.35:526:11
2212.35:526:10
2312.35:526:10
2412.35:526:09
2512.35:526:09
2612.35:526:08
2712.35:526:08
2812.25:526:07
2912.25:526:06
3012.25:526:06
3112.25:526:05

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.82 kWh/m².

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 6.07 kWh/m² in April across the year — August's 4.82 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in August

Hazard calendar for Hồng Ngự

In seasonPeak

In August, Hồng Ngự sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Hồng Ngự sits in the Pacific typhoon belt; the season peaks July–October.

Hồng Ngự's rainy season runs May–October, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Hồng Ngự?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.3
Sightseeing
8th-best month of the year
3.7
Beach & pool
11th-best month of the year

August is a weaker month for outdoor sightseeing in Hồng Ngự.

What to pack for Hồng Ngự in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Hồng Ngự sees daytime highs around 32°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

UV index in Hồng Ngự in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hồng Ngự peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 20 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 18UV 13Nov 20UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct9Very high
Nov9Very high
Dec9Very high

Air quality in Hồng Ngự in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Hồng Ngự is worst in January — around 55 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 21 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1754 µg/m³Aug 1422 µg/m³
PM2.5 (µg/m³)Level
Jan55Poor
Feb49Poor
Mar44Poor
Apr40Poor
May33Moderate
Jun25Moderate
Jul24Moderate
Aug21Moderate
Sep27Moderate
Oct39Poor
Nov47Poor
Dec48Poor
Location & terrain

Where is Hồng Ngự?

Hồng Ngự sits at 10.8°N, 105.3°E, 13 m above sea level, in Vietnam. The nearest listed city is Ấp Long Thạnh, 9.0 km away.

Topography around Hồng Ngự

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hồng Ngự.

Within 3 km, the terrain around Hồng Ngự has only modest variations in elevation — a maximum elevation change of 17 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 30 m; within 80 km, large variations in elevation — a maximum elevation change of 680 m.

The land around Hồng Ngự is covered by cropland (46%) and water (20%) within 3 km, cropland (77%) within 16 km, and cropland (80%) within 80 km.

3 km
17 m
16 km
30 m
80 km
680 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Ấp Long Thạnh 9.0 km · Tân Châu 12 km · Châu Phong 25 km · Kiến An 26 km · Tràm Chim 28 km · Châu Đốc 28 km · Long Xuyên 47 km · Cao Lãnh 49 km

Vietnam travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / F
220 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,066
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
1.5
per 100k, 2011
Road deaths
30.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 500
Religion
none 86%Catholic 6%Buddhist 6%Protestant 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Hồng Ngự (10.8°, 105.35°, elevation 13 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).