Vĩnh Long weather in December

In December, Vĩnh Long sees average daytime highs of 30°C and overnight lows near 24°C, with 70 mm of rain across 9.5 wet days and about 11.4 hours of daylight. It is the 12th-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 18% 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 Long's 5th-clearest and 10th-windiest month. For the whole year in context, see Vĩnh Long's year-round climate.

Daytime high
30°
12th warmest
Overnight low
24°
3rd coldest
Rainfall
70 mm
9.5 wet days
Daylight
11 h 24 min
6:10 AM – 5:34 PM
Cloud cover
71%
5th clearest
Wind
8 km/h
10th windiest
Solar energy
4.5 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 Long reaches about 30°C in the afternoon and slips back to 24°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 on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How December really feels in Vĩnh Long

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 Long weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°264.211.55.5
Feb31° / 23°81.711.75.2
Mar33° / 25°294.711.94.1
Apr34° / 26°7311.812.23.0
May33° / 26°19624.912.52.3
Jun32° / 26°24127.112.62.4
Jul31° / 25°24528.112.52.5
Aug31° / 25°25028.912.32.5
Sep31° / 25°27828.212.12.4
Oct31° / 25°28127.111.82.7
Nov31° / 25°14017.311.53.7
Dec30° / 24°709.511.44.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33169
43169
53268
63268
73268
83268
93268
103268
113268
123268
133268
143268
153268
163268
173169
183169
193169
203268
213268
223169
233169
243169
253169
263268
273466
283466
293466
303763
313763

Chance of precipitation in December

Any precipitation

Vĩnh Long gets around 70 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
935
1034
1134
1234
1333
1433
1532
1631
1731
1830
1930
2029
2128
2228
2327
2426
2526
2625
2724
2824
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 56% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101104544
201114642
301114740
401114939
502115037
602115235
702125333
802125531
902125630
1002125828
1103135727
1203145825
1303145924
1403155923
1503165922
1603175921
1713185820
1813195819
1914205619
2014215618
2114225617
2214235616
2314245615
2413245814
2513255714
2613255813
2713255912
2813255912
2913256011
3012246310
3102246410

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
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 6:03 AM to 6:17 AM, and sunset from 5:29 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:035:29
211.46:035:29
311.46:045:30
411.46:045:30
511.46:055:30
611.46:055:31
711.46:065:31
811.46:065:31
911.46:075:32
1011.46:075:32
1111.46:085:32
1211.46:085:33
1311.46:095:33
1411.46:095:34
1511.46:105:34
1611.46:105:34
1711.46:115:35
1811.46:115:35
1911.46:125:36
2011.46:125:36
2111.46:135:37
2211.46:135:37
2311.46:145:38
2411.46:145:38
2511.46:145:39
2611.46:155:39
2711.46:155:40
2811.46:165:40
2911.46:165:41
3011.46:175:41
3111.46:175:42

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.5 kWh/m².

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 6.02 kWh/m² in March across the year — December's 4.5 kWh/m² sits near the bottom.

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
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.7Bright
Planning a trip in December

Hazard calendar for Vĩnh Long

In seasonPeak

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

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

Vĩnh Long'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 Long?

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 Long for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Vĩnh Long in December

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

In December, Vĩnh Long sees daytime highs around 30°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Vĩnh Long 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 Long peaks around March 23 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 23UV 13Nov 20UV 9
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct9Very high
Nov9Very high
Dec9Very high

Air quality in Vĩnh Long 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 Long 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 Long?

Vĩnh Long sits at 10.3°N, 106.0°E, 1 m above sea level, in Vietnam. The nearest listed city is Cai Lậy, 23 km away.

Topography around Vĩnh Long

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

Within 3 km, the terrain around Vĩnh Long has only modest variations in elevation — a maximum elevation change of 10 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 16 m; within 80 km, only modest variations in elevation — a maximum elevation change of 85 m.

The land around Vĩnh Long is covered by trees (43%) and artificial surfaces (36%) within 3 km, trees (58%) and cropland (24%) within 16 km, and cropland (55%) and trees (35%) within 80 km.

3 km
10 m
16 km
16 m
80 km
85 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Cai Lậy 23 km · Sa Dec 24 km · Quận Đức Thịnh 26 km · Bình Minh 26 km · Can Tho 31 km · Bình Thủy 32 km · Cái Răng 37 km · Ô Môn 41 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 Long (10.2537°, 105.9722°, elevation 1 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).