Bến Thủy weather in December

In December, Bến Thủy sees average daytime highs of 22°C and overnight lows near 18°C, with 47 mm of rain across 8.2 wet days and about 10.9 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 17% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 hours at the start of December to 10 h 54 min by month's end. Set against the rest of the year, December is Bến Thủy's 8th-clearest and 1st-windiest month. For the whole year in context, see Bến Thủy's year-round climate.

Daytime high
22°
10th warmest
Overnight low
18°
3rd coldest
Rainfall
47 mm
8.2 wet days
Daylight
10 h 54 min
6:27 AM – 5:20 PM
Cloud cover
74%
8th clearest
Wind
12 km/h
1st windiest
Solar energy
2.37 kWh/m²
Travel score
6.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 21°C by the end.

A typical December day in Bến Thủy reaches about 22°C in the afternoon and slips back to 18°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12319
22319
32319
42319
52319
62319
72219
82218
92218
102218
112218
122218
132218
142218
152218
162218
172218
182117
192117
202117
212117
222117
232117
242117
252117
262117
272117
282117
292117
302117
312117

How December really feels in Bến Thủy

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bến Thủy weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 17°306116.6
Feb22° / 18°20511.47.0
Mar24° / 20°376.411.97.2
Apr28° / 23°416.712.46.1
May32° / 26°9911.312.93.9
Jun34° / 28°1059.613.12.8
Jul34° / 28°14911.8132.9
Aug32° / 28°22217.812.63.0
Sep30° / 26°33019.212.13.6
Oct28° / 24°32918.811.64.9
Nov25° / 21°10112.511.16.3
Dec22° / 18°478.210.96.6

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 15% of December, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33466
43268
53268
63169
73070
83070
92872
102872
112872
122872
132872
142872
152872
162971
173070
183070
193169
203268
213169
223268
233268
243367
253367
263367
273367
283466
293367
303268
313268

Chance of precipitation in December

Any precipitation

Bến Thủy gets around 47 mm of rain over 8.2 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 26% and peaks near 35% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
234
332
431
530
629
728
828
927
1026
1125
1225
1324
1423
1523
1623
1723
1823
1923
2024
2124
2225
2325
2425
2525
2625
2725
2825
2925
3025
3125

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 27% of days. Sticky, muggy-or-worse air turns up on roughly 39% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
16152630203
26162629193
37172729182
48172729172
59172829162
610182828152
711182827141
812182927131
913192926131
1014192825121
1115192825121
1217202625121
1318202624120
1419202524110
1520202424110
1620212324110
1721212324110
1821212224110
1922212225100
2022222125100
212222212590
222222212690
232222212680
242223212770
252223212860
262123222960
272023223050
282023223050
291923233150
301823233240
311822233240

Wind in December

Winds average 12 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 11 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
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 hours at the start of December to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:18 AM to 6:34 AM, and sunset from 5:16 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:185:16
211.06:195:16
310.96:195:16
410.96:205:16
510.96:215:16
610.96:215:17
710.96:225:17
810.96:225:17
910.96:235:17
1010.96:245:18
1110.96:245:18
1210.96:255:18
1310.96:255:19
1410.96:265:19
1510.96:265:20
1610.96:275:20
1710.96:275:20
1810.96:285:21
1910.96:285:21
2010.96:295:22
2110.96:295:22
2210.96:305:23
2310.96:305:23
2410.96:315:23
2510.96:315:24
2610.96:325:24
2710.96:325:25
2810.96:325:26
2910.96:335:26
3010.96:335:27
3110.96:345:27

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.37 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 5.77 kWh/m² in June across the year — December's 2.37 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Hazard calendar for Bến Thủy

In seasonPeak

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

Bến Thủy sits in the Pacific typhoon belt; the season peaks July–October.

Bến Thủy's monsoon runs July–October, when most of the year's rain falls.

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

Is December a good time to visit Bến Thủy?

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

6.6
Sightseeing
3rd-best month of the year
4.5
Beach & pool
11th-best month of the year

December is a reasonable time to visit Bến Thủy for sightseeing.

What to pack for Bến Thủy in December

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

In December, Bến Thủy sees daytime highs around 22°C and nights near 18°C. Worth packing: rain gear. About 8 days see rain.

rain gear

Sea temperature near Bến Thủy in December

The nearest coast averages about 23°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 19 km away) is warmest in August at about 30°C and coldest in February near 21°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar22Refreshing
Apr24Warm
May28Warm
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct28Warm
Nov26Warm
Dec23Refreshing

UV index in Bến Thủy in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bến Thủy peaks around July 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJul 17UV 12Dec 14UV 6
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar10Very high
Apr9Very high
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov7High
Dec6High

Air quality in Bến Thủy 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 Bến Thủy is worst in April — around 62 µg/m³ PM2.5 (unhealthy), about 3.5× the cleanest month (July, 18 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorApr 1161 µg/m³Jul 1618 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb52Poor
Mar57Unhealthy
Apr62Unhealthy
May35Poor
Jun20Moderate
Jul18Moderate
Aug21Moderate
Sep30Moderate
Oct41Poor
Nov47Poor
Dec52Poor
Location & terrain

Where is Bến Thủy?

Bến Thủy sits at 18.6°N, 105.7°E, 11 m above sea level, in Vietnam. The nearest listed city is Vinh, 3.0 km away.

Topography around Bến Thủy

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

Within 3 km, the terrain around Bến Thủy has only modest variations in elevation — a maximum elevation change of 131 m around an average of 8 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 670 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,269 m.

The land around Bến Thủy is covered by artificial surfaces (34%) and trees (21%) within 3 km, cropland (35%) and trees (27%) within 16 km, and trees (55%) and water (28%) within 80 km.

3 km
131 m
16 km
670 m
80 km
2,269 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Vinh 3.0 km · Yên Vinh 4.0 km · Nghi Xuân 6.0 km · Hồng Lĩnh 14 km · Nghèn 24 km · Diễn Thành 38 km · Hà Tĩnh 40 km · Kim Liên 48 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 Bến Thủy (18.65°, 105.7°, elevation 11 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).