Vĩnh Thạnh weather in December

In December, Vĩnh Thạnh sees average daytime highs of 30°C and overnight lows near 23°C, with 63 mm of rain across 9.5 wet days and about 11.4 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 17% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of December to 11 h 24 min by month's end. Set against the rest of the year, December is Vĩnh Thạnh's 5th-clearest and 8th-windiest month. For the whole year in context, see Vĩnh Thạnh's year-round climate.

Daytime high
30°
11th warmest
Overnight low
23°
3rd coldest
Rainfall
63 mm
9.5 wet days
Daylight
11 h 24 min
6:12 AM – 5:37 PM
Cloud cover
70%
5th clearest
Wind
8 km/h
8th windiest
Solar energy
4.59 kWh/m²
Travel score
4.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Vĩnh Thạnh reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83024
93024
103024
113024
123024
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How December really feels in Vĩnh Thạnh

Once humidity and wind are folded in, December 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 December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Vĩnh Thạnh weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°274.611.55.5
Feb31° / 23°12211.75.2
Mar33° / 25°365.811.93.8
Apr34° / 26°8212.412.22.8
May33° / 26°18524.912.52.2
Jun31° / 26°22026.712.62.4
Jul31° / 25°22527.712.52.6
Aug31° / 25°22928.612.32.5
Sep31° / 25°26528.512.12.4
Oct31° / 25°28927.311.82.6
Nov31° / 24°13917.211.53.5
Dec30° / 23°639.511.44.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43268
53268
63169
73169
83268
93268
103367
113367
123466
133466
143466
153466
163367
173367
183466
193466
203466
213565
223565
233565
243565
253664
263664
273664
283763
293862
303862
313862

Chance of precipitation in December

Any precipitation

Vĩnh Thạnh gets around 63 mm of rain over 9.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
240
339
438
537
636
736
835
934
1034
1133
1233
1332
1432
1531
1631
1730
1830
1929
2029
2128
2227
2327
2426
2525
2625
2724
2823
2923
3022
3121

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
102155132
202155231
303155230
403155428
503165427
603165625
703165724
803165823
904175722
1004175821
1104185820
1204195819
1315195718
1415205717
1515215617
1616215616
1716225516
1816225615
1926235415
2027245314
2127255214
2227255313
2327265312
2427275212
2527275311
2617275510
2716275610
281627579
291627588
301527598
311527607

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
169calm
179calm
189calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 24 min at the start of December to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:05 AM to 6:19 AM, and sunset from 5:32 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:055:32
211.46:055:32
311.46:065:32
411.46:065:32
511.46:075:33
611.46:075:33
711.46:085:33
811.46:085:34
911.46:095:34
1011.46:095:34
1111.46:105:35
1211.46:105:35
1311.46:115:35
1411.46:115:36
1511.46:125:36
1611.46:125:37
1711.46:135:37
1811.46:135:38
1911.46:145:38
2011.46:145:39
2111.46:155:39
2211.46:155:39
2311.46:165:40
2411.46:165:40
2511.46:175:41
2611.46:175:41
2711.46:185:42
2811.46:185:42
2911.46:185:43
3011.46:195:43
3111.46:195:44

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.59 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.02 kWh/m² in April across the year — December's 4.59 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in December

Hazard calendar for Vĩnh Thạnh

In seasonPeak

In December, Vĩnh Thạnh sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Vĩnh Thạnh sits in the Pacific typhoon belt; the season peaks July–October.

Vĩnh Thạnh'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 December a good time to visit Vĩnh Thạnh?

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

4.8
Sightseeing
3rd-best month of the year
6.7
Beach & pool
4th-best month of the year

December is a reasonable time to visit Vĩnh Thạnh for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Vĩnh Thạnh in December

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

In December, Vĩnh Thạnh sees daytime highs around 30°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Vĩnh Thạnh in December

The nearest coast averages about 28°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 58 km away) is warmest in May at about 31°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
Feb28Warm
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Vĩnh Thạnh in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vĩnh Thạnh peaks around August 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 19UV 13Dec 11UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in Vĩnh Thạnh in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Vĩnh Thạnh is worst in January — around 72 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (August, 30 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1172 µg/m³Aug 1331 µg/m³
PM2.5 (µg/m³)Level
Jan72Unhealthy
Feb59Unhealthy
Mar53Poor
Apr53Poor
May47Poor
Jun38Poor
Jul34Moderate
Aug30Moderate
Sep40Poor
Oct56Unhealthy
Nov68Unhealthy
Dec70Unhealthy
Location & terrain

Where is Vĩnh Thạnh?

Vĩnh Thạnh sits at 10.2°N, 105.4°E, 3 m above sea level, in Vietnam. The nearest listed city is Cờ Đỏ, 15 km away.

Topography around Vĩnh Thạnh

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

Within 3 km, the terrain around Vĩnh Thạnh has only modest variations in elevation — a maximum elevation change of 9 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 105 m; within 80 km, large variations in elevation — a maximum elevation change of 677 m.

The land around Vĩnh Thạnh is covered by cropland (82%) within 3 km, cropland (84%) within 16 km, and cropland (65%) and trees (20%) within 80 km.

3 km
9 m
16 km
105 m
80 km
677 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Cờ Đỏ 15 km · Núi Sập 15 km · Thốt Nốt 16 km · Long Xuyên 19 km · Lai Vung 22 km · Thới Lai 25 km · Óc Eo 27 km · Ô Môn 28 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 Vĩnh Thạnh (10.2226°, 105.3984°, elevation 3 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).