Cái Đôi Vàm weather in August

In August, Cái Đôi Vàm sees average daytime highs of 29°C and overnight lows near 26°C, with 268 mm of rain across 27.6 wet days and about 12.3 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 4% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is Cái Đôi Vàm's 8th-clearest and 2nd-windiest month. For the whole year in context, see Cái Đôi Vàm's year-round climate.

Daytime high
29°
6th warmest
Overnight low
26°
8th coldest
Rainfall
268 mm
27.6 wet days
Daylight
12 h 18 min
5:56 AM – 6:14 PM
Cloud cover
85%
8th clearest
Wind
18 km/h
2nd windiest
Solar energy
5.06 kWh/m²
Travel score
3.2
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical August day in Cái Đôi Vàm reaches about 29°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, August runs on par with July and on par with September.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12926
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302926
312926

How August really feels in Cái Đôi Vàm

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
heat index over the day's high
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.

Cái Đôi Vàm weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°315.211.56.5
Feb29° / 25°132.411.76.6
Mar30° / 26°37611.95.7
Apr30° / 27°8513.212.24.5
May30° / 27°21325.212.43.1
Jun29° / 27°25926.512.53.1
Jul29° / 26°28128.212.53.1
Aug29° / 26°26827.612.33.2
Sep28° / 26°30927.112.13.2
Oct28° / 26°3552911.83.2
Nov29° / 26°20622.211.63.9
Dec28° / 25°10112.411.55.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 7% of August, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
21090
31189
41288
51288
61288
71288
81387
91387
101387
111387
121387
131387
141486
151387
161387
171387
181387
191189
201189
211189
221090
231090
241090
251090
261090
271090
281090
291189
301189
311189

Chance of precipitation in August

Any precipitation

Cái Đôi Vàm gets around 268 mm of rain over 27.6 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 90% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
290
390
490
590
690
789
889
989
1089
1189
1288
1388
1488
1588
1688
1788
1888
1989
2089
2189
2289
2389
2489
2589
2690
2790
2890
2990
3090
3190

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 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1694
2694
3694
4595
5595
6595
7595
8595
9595
10595
11694
12694
13694
14694
15694
16694
17694
18694
19793
20793
21793
22793
23892
24892
25892
26892
27991
28991
29991
301090
311090

Wind in August

Winds average 18 km/h in August.

Across August, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 24 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 12 minutes over August. Sunrise moves from 5:55 AM to 5:55 AM, and sunset from 6:19 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:556:19
212.45:556:18
312.45:556:18
412.45:556:18
512.45:556:18
612.45:566:17
712.45:566:17
812.35:566:17
912.35:566:16
1012.35:566:16
1112.35:566:16
1212.35:566:15
1312.35:566:15
1412.35:566:14
1512.35:566:14
1612.35:566:14
1712.35:566:13
1812.35:566:13
1912.35:566:12
2012.35:566:12
2112.35:566:11
2212.25:566:11
2312.25:566:10
2412.25:566:10
2512.25:566:09
2612.25:566:09
2712.25:566:08
2812.25:566:08
2912.25:566:07
3012.25:556:07
3112.25:556:06

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.06 kWh/m².

For context, solar energy here swings from a low near 4.46 kWh/m² to a high of 6.31 kWh/m² in March across the year — August's 5.06 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in August

Hazard calendar for Cái Đôi Vàm

In seasonPeak

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

Cái Đôi Vàm sits in the Pacific typhoon belt; the season peaks July–October.

Cái Đôi Vàm's rainy season runs May–November, 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 Cái Đôi Vàm?

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

3.2
Sightseeing
7th-best month of the year
4.0
Beach & pool
9th-best month of the year

August is a weaker month for outdoor sightseeing in Cái Đôi Vàm.

What to pack for Cái Đôi Vàm in August

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

In August, Cái Đôi Vàm sees daytime highs around 29°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

Sea temperature near Cái Đôi Vàm in August

The nearest coast averages about 29°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in May at about 30°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Cái Đôi Vàm 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 Cái Đôi Vàm peaks around March 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 20UV 13Dec 16UV 10
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov11Extreme
Dec10Very high

Air quality in Cái Đôi Vàm 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 Cái Đôi Vàm is worst in December — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (May, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateDec 1922 µg/m³May 2012 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb17Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun13Moderate
Jul15Moderate
Aug13Moderate
Sep14Moderate
Oct15Moderate
Nov18Moderate
Dec22Moderate
Location & terrain

Where is Cái Đôi Vàm?

Cái Đôi Vàm sits at 8.9°N, 104.8°E, 2 m above sea level, in Vietnam. The nearest listed city is Hưng Mỹ, 19 km away.

Topography around Cái Đôi Vàm

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cái Đôi Vàm.

Within 3 km, the terrain around Cái Đôi Vàm has only modest variations in elevation — a maximum elevation change of 11 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 17 m; within 80 km, significant variations in elevation — a maximum elevation change of 285 m.

The land around Cái Đôi Vàm is covered by water (34%) and mangroves (32%) within 3 km, water (62%) within 16 km, and water (78%) within 80 km.

3 km
11 m
16 km
17 m
80 km
285 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
August weather nearby: Hưng Mỹ 19 km · Năm Căn 23 km · Trần Văn Thời 31 km · Tam Giang 41 km · Cà Mau 52 km · Thới Bình 64 km · An Trạch 68 km · Gành Hào 70 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 Cái Đôi Vàm (8.8571°, 104.812°, elevation 2 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).