Mỹ Lại weather in December

In December, Mỹ Lại sees average daytime highs of 25°C and overnight lows near 23°C, with 291 mm of rain across 23 wet days and about 11.1 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 14% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 06 min by month's end. Set against the rest of the year, December is Mỹ Lại's 8th-clearest and 1st-windiest month. For the whole year in context, see Mỹ Lại's year-round climate.

Daytime high
25°
10th warmest
Overnight low
23°
3rd coldest
Rainfall
291 mm
23 wet days
Daylight
11 h 06 min
6:07 AM – 5:14 PM
Cloud cover
71%
8th clearest
Wind
18 km/h
1st windiest
Solar energy
3.15 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 25°C through the month.

A typical December day in Mỹ Lại reaches about 25°C in the afternoon and slips back to 23°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12623
22623
32623
42623
52623
62523
72523
82523
92523
102523
112523
122523
132523
142523
152523
162523
172522
182522
192522
202522
212522
222522
232422
242422
252422
262422
272422
282422
292422
302422
312422

How December really feels in Mỹ Lại

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.

Mỹ Lại weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 22°12516.811.25.9
Feb25° / 22°7110.611.56.8
Mar27° / 24°728.911.97.0
Apr29° / 25°547.612.36.1
May31° / 27°8212.112.74.4
Jun32° / 28°6511.312.93.7
Jul32° / 28°8112.812.83.8
Aug31° / 28°11617.312.53.4
Sep30° / 26°27322.712.13.4
Oct28° / 25°37525.111.74.0
Nov27° / 24°37722.511.34.6
Dec25° / 23°2912311.14.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24060
33862
43763
53763
63565
73466
83367
93367
103367
113268
123268
133268
143268
153367
163367
173367
183367
193367
203367
213466
223466
233466
243466
253466
263664
273664
283763
293763
303862
313862

Chance of precipitation in December

Any precipitation

Mỹ Lại gets around 291 mm of rain over 23 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 73% and peaks near 79% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
177
277
377
477
578
678
778
879
979
1079
1179
1279
1379
1478
1577
1676
1775
1874
1974
2073
2172
2271
2370
2469
2568
2666
2765
2864
2963
3062
3161

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 47% of days. Sticky, muggy-or-worse air turns up on roughly 85% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101822627
201823626
301925605
401926604
501927594
601928593
701929583
8011030572
9011031562
10011032552
11011033551
12011134531
13011135521
14021235501
15021336491
16021337480
17021437460
18021438450
19131439430
20131540410
21131541400
22141542380
23141643370
24141644350
25141645340
26151646330
27151547320
28151548320
29151548310
30041549310
31041549310

Wind in December

Winds average 18 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 16 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
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
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3016light breeze
3116light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 06 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 5:59 AM to 6:14 AM, and sunset from 5:09 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.25:595:09
211.26:005:09
311.26:005:10
411.16:015:10
511.16:025:10
611.16:025:10
711.16:035:11
811.16:035:11
911.16:045:11
1011.16:045:11
1111.16:055:12
1211.16:055:12
1311.16:065:13
1411.16:065:13
1511.16:075:13
1611.16:075:14
1711.16:085:14
1811.16:095:15
1911.16:095:15
2011.16:095:15
2111.16:105:16
2211.16:105:16
2311.16:115:17
2411.16:115:17
2511.16:125:18
2611.16:125:18
2711.16:135:19
2811.16:135:19
2911.16:145:20
3011.16:145:20
3111.16:145:21

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.15 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.15 kWh/m² to a high of 6.48 kWh/m² in May across the year — December's 3.15 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.1Moderate
213.1Moderate
223.2Moderate
233.2Moderate
243.2Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.4Moderate
303.4Moderate
313.5Moderate
Planning a trip in December

Hazard calendar for Mỹ Lại

In seasonPeak

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

Mỹ Lại sits in the Pacific typhoon belt; the season peaks July–October.

Mỹ Lại's monsoon runs September–December, 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 Mỹ Lại?

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

4.8
Sightseeing
5th-best month of the year
4.4
Beach & pool
12th-best month of the year

December is a reasonable time to visit Mỹ Lại for sightseeing.

What to pack for Mỹ Lại in December

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

In December, Mỹ Lại sees daytime highs around 25°C and nights near 23°C. Pack rain gear. Worth having: light clothes. About 23 days see rain.

rain gearlight clothes

Sea temperature near Mỹ Lại in December

The nearest coast averages about 25°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 21 km away) is warmest in August at about 30°C and coldest in February near 24°C.

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

22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb24Refreshing
Mar24Warm
Apr26Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct28Warm
Nov27Warm
Dec25Warm

UV index in Mỹ Lại in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mỹ Lại peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 11UV 13Dec 16UV 7
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec7High

Air quality in Mỹ Lại 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 Mỹ Lại is worst in March — around 35 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (November, 15 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2335 µg/m³Nov 1815 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb22Moderate
Mar35Moderate
Apr34Moderate
May28Moderate
Jun23Moderate
Jul17Moderate
Aug17Moderate
Sep17Moderate
Oct17Moderate
Nov15Moderate
Dec16Moderate
Location & terrain

Where is Mỹ Lại?

Mỹ Lại sits at 15.2°N, 108.9°E, 9 m above sea level, in Vietnam. The nearest listed city is Mỹ Khê, 4.0 km away.

Hoi An

Topography around Mỹ Lại

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

Within 3 km, the terrain around Mỹ Lại has only modest variations in elevation — a maximum elevation change of 89 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 151 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,840 m.

The land around Mỹ Lại is covered by water (40%) and cropland (21%) within 3 km, water (48%) and trees (25%) within 16 km, and water (48%) and trees (43%) within 80 km.

3 km
89 m
16 km
151 m
80 km
1,840 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Mỹ Khê 4.0 km · Quảng Ngãi 13 km · Lý Sơn 32 km · Núi Thành 37 km · Đức Phổ 42 km · Tam Kỳ 62 km · Đông Phú 90 km · Hoi An 97 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 Mỹ Lại (15.1876°, 108.889°, elevation 9 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).