Thị Trấn Lam Sơn weather in January

In January, Thị Trấn Lam Sơn sees average daytime highs of 20°C and overnight lows near 15°C, with 38 mm of rain across 7.5 wet days and about 10.9 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 13% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of January to 11 h 06 min by month's end. Set against the rest of the year, January is Thị Trấn Lam Sơn's 8th-clearest and 7th-windiest month. For the whole year in context, see Thị Trấn Lam Sơn's year-round climate.

Daytime high
20°
12th warmest
Overnight low
15°
1st coldest
Rainfall
38 mm
7.5 wet days
Daylight
10 h 54 min
6:40 AM – 5:35 PM
Cloud cover
77%
8th clearest
Wind
7 km/h
7th windiest
Solar energy
2.44 kWh/m²
Travel score
6.4
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 20°C through the month.

A typical January day in Thị Trấn Lam Sơn reaches about 20°C in the afternoon and slips back to 15°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 26°C. Set against its neighbours, January runs about 1°C cooler than December and about 2°C cooler than February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12115
22115
32115
42115
52115
62115
72115
82115
92115
102015
112015
122015
132015
142015
152015
162015
172015
182015
192015
202014
212014
222014
232014
242014
252014
262014
272014
282015
292015
302015
312015

How January really feels in Thị Trấn Lam Sơn

Once humidity and wind are folded in, January 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

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

Thị Trấn Lam Sơn weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 15°387.510.96.4
Feb22° / 16°287.111.36.6
Mar25° / 18°559.911.96.5
Apr29° / 22°8510.912.45.2
May32° / 25°19617.612.93.2
Jun33° / 26°19216.513.22.6
Jul33° / 26°23319.613.12.6
Aug32° / 26°32624.412.72.6
Sep31° / 24°26520.612.13.4
Oct28° / 22°16114.611.55.3
Nov25° / 19°628.111.17.0
Dec22° / 15°336.310.87.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23070
32971
42872
52773
62872
72773
82773
92575
102575
112476
122476
132377
142377
152278
162278
172179
182179
192179
202179
212179
222179
232179
242179
252179
262179
272080
282080
292179
302179
312179

Chance of precipitation in January

Any precipitation

Thị Trấn Lam Sơn gets around 38 mm of rain over 7.5 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
123
223
324
424
524
625
725
825
925
1025
1125
1225
1325
1425
1525
1625
1725
1824
1924
2024
2124
2224
2324
2423
2523
2623
2723
2823
2923
3023
3122

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1361926181
2361925191
3361925201
4361924201
5361923211
6361923211
7371922221
8371922221
9371921221
10371921221
11371921221
12381921221
13381921211
14381922211
15391922201
16391922201
17401922191
18401922181
19411922181
20411922181
21421822171
22421822171
23421821171
24431821171
25431821171
26431820172
27431820182
28431820182
29421820182
30421820182
31411920183

Wind in January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 6 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
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 48 min at the start of January to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over January. Sunrise moves from 6:37 AM to 6:39 AM, and sunset from 5:26 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:375:26
210.86:375:27
310.86:385:27
410.86:385:28
510.86:385:28
610.86:395:29
710.86:395:30
810.96:395:30
910.96:395:31
1010.96:395:31
1110.96:405:32
1210.96:405:33
1310.96:405:33
1410.96:405:34
1510.96:405:35
1610.96:405:35
1710.96:405:36
1810.96:405:36
1910.96:405:37
2011.06:405:38
2111.06:405:38
2211.06:405:39
2311.06:405:40
2411.06:405:40
2511.06:405:41
2611.06:405:41
2711.06:405:42
2811.16:405:43
2911.16:395:43
3011.16:395:44
3111.16:395:45

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.44 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.44 kWh/m² to a high of 5.24 kWh/m² in June across the year — January's 2.44 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.4Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.5Moderate
292.5Moderate
302.6Moderate
312.6Moderate
Planning a trip in January

Hazard calendar for Thị Trấn Lam Sơn

In seasonPeak

In January, Thị Trấn Lam Sơn sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Thị Trấn Lam Sơn sits in the Pacific typhoon belt; the season peaks July–October.

Thị Trấn Lam Sơn's monsoon runs May–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 January a good time to visit Thị Trấn Lam Sơn?

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

6.4
Sightseeing
5th-best month of the year
3.6
Beach & pool
12th-best month of the year

January is a reasonable time to visit Thị Trấn Lam Sơn for sightseeing.

What to pack for Thị Trấn Lam Sơn in January

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

In January, Thị Trấn Lam Sơn sees daytime highs around 20°C and nights near 15°C. Little to plan around — just the basics. About 8 days see rain.

Sea temperature near Thị Trấn Lam Sơn in January

The nearest coast averages about 21°C in January — 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 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
Mar21Refreshing
Apr24Refreshing
May28Warm
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct28Warm
Nov26Warm
Dec23Refreshing

UV index in Thị Trấn Lam Sơn in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Thị Trấn Lam Sơn peaks around August 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highHighAug 13UV 12Dec 15UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar10Very high
Apr7Very high
May8Very high
Jun13Extreme
Jul11Extreme
Aug13Extreme
Sep9Very high
Oct8Very high
Nov7High
Dec6High

Air quality in Thị Trấn Lam Sơn in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Thị Trấn Lam Sơn is worst in December — around 134 µg/m³ PM2.5 (unhealthy), about 3.8× the cleanest month (July, 35 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyDec 20132 µg/m³Jul 1536 µg/m³
PM2.5 (µg/m³)Level
Jan126Unhealthy
Feb106Unhealthy
Mar94Unhealthy
Apr87Unhealthy
May60Unhealthy
Jun42Poor
Jul35Moderate
Aug46Poor
Sep69Unhealthy
Oct93Unhealthy
Nov116Unhealthy
Dec134Unhealthy
Location & terrain

Where is Thị Trấn Lam Sơn?

Thị Trấn Lam Sơn sits at 19.9°N, 105.4°E, 22 m above sea level, in Vietnam. The nearest listed city is Thanh Hóa, 40 km away.

Topography around Thị Trấn Lam Sơn

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Thị Trấn Lam Sơn.

Within 3 km, the terrain around Thị Trấn Lam Sơn has only modest variations in elevation — a maximum elevation change of 166 m around an average of 29 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 760 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,381 m.

The land around Thị Trấn Lam Sơn is covered by trees (60%) and cropland (27%) within 3 km, trees (70%) and cropland (24%) within 16 km, and trees (71%) within 80 km.

3 km
166 m
16 km
760 m
80 km
2,381 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Thanh Hóa 40 km · Bỉm Sơn 51 km · Sầm Sơn 55 km · Nga Sơn 60 km · Ninh Binh 72 km · Nghi Sơn 78 km · Hoàng Mai 78 km · Bo 86 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 Thị Trấn Lam Sơn (19.9047°, 105.4056°, elevation 22 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).