Việt Yên weather in January

In January, Việt Yên sees average daytime highs of 20°C and overnight lows near 14°C, with 37 mm of rain across 7.1 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 12% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of January to 11 hours by month's end. Set against the rest of the year, January is Việt Yên's 7th-clearest and 5th-windiest month. For the whole year in context, see Việt Yên's year-round climate.

Daytime high
20°
12th warmest
Overnight low
14°
1st coldest
Rainfall
37 mm
7.1 wet days
Daylight
10 h 48 min
6:40 AM – 5:30 PM
Cloud cover
80%
7th clearest
Wind
9 km/h
5th windiest
Solar energy
2.19 kWh/m²
Travel score
6.3
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 Việt Yên reaches about 20°C in the afternoon and slips back to 14°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 25°C. Set against its neighbours, January runs about 2°C cooler than December and about 2°C cooler than February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12114
22114
32114
42114
52114
62014
72014
82014
92014
102014
112014
122014
132014
142014
152014
162014
172014
182014
192014
201914
211914
221914
231914
241914
252014
262014
272014
282014
292014
302014
312014

How January really feels in Việt Yên

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.

Việt Yên 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° / 14°377.110.96.3
Feb21° / 16°246.611.36.5
Mar24° / 18°5010.211.86.4
Apr28° / 22°8511.712.55.3
May32° / 25°26119.3133.3
Jun33° / 27°2852113.32.4
Jul33° / 27°30123.613.22.3
Aug32° / 26°36025.112.72.4
Sep32° / 25°23019.112.13.3
Oct29° / 22°10711.611.55.2
Nov26° / 19°577.3117.0
Dec22° / 15°336.210.77.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 8% of January, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22674
32575
42476
52377
62377
72080
82080
92080
101981
111981
121882
131882
141882
151882
161783
171783
181783
191783
201783
211882
221882
231882
241882
251882
261882
271882
281882
291882
301783
311783

Chance of precipitation in January

Any precipitation

Việt Yên gets around 37 mm of rain over 7.1 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 23% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
121
222
322
423
523
623
724
824
924
1024
1124
1224
1324
1424
1524
1624
1724
1824
1923
2023
2123
2223
2322
2422
2523
2623
2723
2823
2923
3022
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 54% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1491920120
2491920120
3491819130
4501819130
5501719141
6511618141
7501618151
8511617151
9511617151
10521616151
11521616151
12531616141
13531616141
14531616141
15541616131
16541616131
17551616121
18551616121
19561616111
20561616111
21551617111
22551617111
23561517111
24551518111
25561418111
26551418121
27561318121
28561318121
29561318121
30551318122
31541319122

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 42 min at the start of January to 11 hours 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 6:38 AM, and sunset from 5:20 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.76:375:20
210.76:375:21
310.76:375:22
410.76:385:22
510.76:385:23
610.86:385:23
710.86:385:24
810.86:395:25
910.86:395:25
1010.86:395:26
1110.86:395:27
1210.86:395:27
1310.86:395:28
1410.86:405:29
1510.86:405:29
1610.86:405:30
1710.86:405:30
1810.96:405:31
1910.96:405:32
2010.96:405:32
2110.96:405:33
2210.96:405:34
2310.96:395:34
2410.96:395:35
2510.96:395:36
2611.06:395:36
2711.06:395:37
2811.06:395:38
2911.06:395:38
3011.06:385:39
3111.06:385:40

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.19 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.19 kWh/m² to a high of 4.86 kWh/m² in June across the year — January's 2.19 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.2Moderate
232.2Moderate
242.2Moderate
252.2Moderate
262.2Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in January

Hazard calendar for Việt Yên

In seasonPeak

None of Việt Yên's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Việt Yên's monsoon runs May–September, when most of the year's rain falls.

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

Is January a good time to visit Việt Yên?

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

6.3
Sightseeing
5th-best month of the year
3.3
Beach & pool
12th-best month of the year

January is a reasonable time to visit Việt Yên for sightseeing.

What to pack for Việt Yên in January

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

In January, Việt Yên sees daytime highs around 20°C and nights near 14°C. Little to plan around — just the basics. About 7 days see rain.

UV index in Việt Yên in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Việt Yên peaks around June 20 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highVery highExtremeVery highHighJun 20UV 11Nov 23UV 6
UV index (midday)Level
Jan6High
Feb7Very high
Mar9Very high
Apr6High
May8Very high
Jun11Extreme
Jul10Extreme
Aug9Very high
Sep8Very high
Oct8Very high
Nov6High
Dec6High

Air quality in Việt Yên 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 Việt Yên is worst in December — around 92 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (July, 35 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyDec 2192 µg/m³Jul 1335 µg/m³
PM2.5 (µg/m³)Level
Jan90Unhealthy
Feb80Unhealthy
Mar76Unhealthy
Apr66Unhealthy
May49Poor
Jun37Poor
Jul35Moderate
Aug40Poor
Sep59Unhealthy
Oct74Unhealthy
Nov82Unhealthy
Dec92Unhealthy
Location & terrain

Where is Việt Yên?

Việt Yên sits at 21.3°N, 106.1°E, 6 m above sea level, in Vietnam. The nearest listed city is Bắc Giang, 6.0 km away.

Topography around Việt Yên

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

Within 3 km, the terrain around Việt Yên has only modest variations in elevation — a maximum elevation change of 50 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 247 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,694 m.

The land around Việt Yên is covered by cropland (43%) and artificial surfaces (29%) within 3 km, cropland (50%) and trees (24%) within 16 km, and trees (57%) and cropland (29%) within 80 km.

3 km
50 m
16 km
247 m
80 km
1,694 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Bắc Giang 6.0 km · Cung Kiệm 9.0 km · Bắc Ninh 11 km · Thuận Thanh 25 km · Từ Sơn 25 km · Chí Linh 29 km · Sóc Sơn 29 km · Phổ Yên 30 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 Việt Yên (21.2667°, 106.1333°, elevation 6 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. 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).