Tân An weather in December

In December, Tân An sees average daytime highs of 30°C and overnight lows near 24°C, with 70 mm of rain across 9.9 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 15% 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 Tân An's 6th-clearest and 10th-windiest month. For the whole year in context, see Tân An's year-round climate.

Daytime high
30°
12th warmest
Overnight low
24°
3rd coldest
Rainfall
70 mm
9.9 wet days
Daylight
11 h 24 min
6:09 AM – 5:32 PM
Cloud cover
72%
6th clearest
Wind
7 km/h
10th windiest
Solar energy
4.6 kWh/m²
Travel score
4.7
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 Tân An 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)
13124
23124
33124
43124
53124
63124
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 Tân An

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.

Tân An 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
Jan31° / 23°284.211.55.3
Feb31° / 24°11211.75.1
Mar33° / 25°254.511.94.1
Apr34° / 26°7011.912.23.0
May33° / 26°19424.512.52.2
Jun32° / 26°23727.312.62.2
Jul31° / 25°2382912.62.3
Aug31° / 25°2602912.32.3
Sep31° / 25°29428.112.12.3
Oct31° / 25°28727.411.82.6
Nov31° / 25°13916.811.53.7
Dec30° / 24°709.911.44.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% 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 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23268
33268
43268
53268
63169
73169
83268
93268
103268
113268
123367
133268
143268
153268
163268
173169
183169
193169
203169
213169
223070
233070
243268
253268
263268
273466
283466
293466
303664
313763

Chance of precipitation in December

Any precipitation

Tân An gets around 70 mm of rain over 9.9 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 32% 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
241
340
439
538
638
738
837
937
1036
1136
1235
1335
1434
1533
1632
1732
1831
1930
2029
2129
2228
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 57% 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 (%)
101114543
201114741
301114839
402124937
502125135
602125333
702135431
802135530
902135728
1002145826
1102146024
1203155923
1303165922
1403166120
1503176119
1603186118
1713196017
1813205917
1913215916
2013225915
2113235815
2213245814
2313255813
2413265713
2513275712
2613275712
2713285711
2813285810
2913285810
301228609
310228619

Wind in December

Winds average 7 km/h in December.

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

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 6:01 AM to 6:16 AM, and sunset from 5:27 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:015:27
211.46:025:27
311.46:025:27
411.46:035:28
511.46:035:28
611.46:045:28
711.46:045:29
811.46:055:29
911.46:055:29
1011.46:065:30
1111.46:065:30
1211.46:075:30
1311.46:075:31
1411.46:085:31
1511.46:085:32
1611.46:095:32
1711.46:095:33
1811.46:105:33
1911.46:105:33
2011.46:115:34
2111.46:115:34
2211.46:125:35
2311.46:125:35
2411.46:135:36
2511.46:135:36
2611.46:145:37
2711.46:145:37
2811.46:155:38
2911.46:155:38
3011.46:155:39
3111.46:165:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.6 kWh/m².

For context, solar energy here swings from a low near 4.57 kWh/m² to a high of 6.24 kWh/m² in March across the year — December's 4.6 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in December

Hazard calendar for Tân An

In seasonPeak

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

Tân An sits in the Pacific typhoon belt; the season peaks July–October.

Tân An'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 Tân An?

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

4.7
Sightseeing
3rd-best month of the year
6.6
Beach & pool
4th-best month of the year

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

What to pack for Tân An in December

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

In December, Tân An 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

Sea temperature near Tân An in December

The nearest coast averages about 27°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 54 km away) is warmest in May at about 30°C and coldest in January near 26°C.

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

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Tân An 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 Tân An peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 18 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 highMar 23UV 13Nov 18UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct9Very high
Nov9Very high
Dec9Very high

Air quality in Tân An 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 Tân An is worst in December — around 49 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (August, 28 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorDec 1549 µg/m³Aug 1228 µg/m³
PM2.5 (µg/m³)Level
Jan46Poor
Feb38Poor
Mar33Moderate
Apr32Moderate
May32Moderate
Jun31Moderate
Jul29Moderate
Aug28Moderate
Sep34Moderate
Oct41Poor
Nov47Poor
Dec49Poor
Location & terrain

Where is Tân An?

Tân An sits at 10.5°N, 106.4°E, 4 m above sea level, in Vietnam. The nearest listed city is Mỹ Tho, 20 km away.

Topography around Tân An

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

Within 3 km, the terrain around Tân An has only modest variations in elevation — a maximum elevation change of 12 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 18 m; within 80 km, significant variations in elevation — a maximum elevation change of 588 m.

The land around Tân An is covered by artificial surfaces (37%) and trees (35%) within 3 km, trees (41%) and cropland (36%) within 16 km, and trees (34%) and cropland (34%) within 80 km.

3 km
12 m
16 km
18 m
80 km
588 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
December weather nearby: Mỹ Tho 20 km · Cần Đước 21 km · Cần Giuộc 29 km · Bến Tre 33 km · Gò Công 33 km · Quận Sáu 35 km · Chợ Lớn 35 km · Quận Mười Một 36 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 Tân An (10.5359°, 106.4137°, elevation 4 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).