Kiến An weather in January

In January, Kiến An sees average daytime highs of 19°C and overnight lows near 16°C, with 37 mm of rain across 7 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 19°C through the month. The sky is clear or mostly clear about 17% 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 hours by month's end. Set against the rest of the year, January is Kiến An's 7th-clearest and 5th-windiest month. For the whole year in context, see Kiến An's year-round climate.

Daytime high
19°
12th warmest
Overnight low
16°
1st coldest
Rainfall
37 mm
7 wet days
Daylight
10 h 54 min
6:37 AM – 5:29 PM
Cloud cover
74%
7th clearest
Wind
13 km/h
5th windiest
Solar energy
2.54 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 19°C through the month.

A typical January day in Kiến An reaches about 19°C in the afternoon and slips back to 16°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 23°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12016
22016
32016
42016
52016
62016
72016
82016
91916
101916
111916
121916
131916
141916
151916
161916
171916
181916
191916
201916
211916
221916
231916
241916
251916
261916
271916
281916
291916
301916
311916

How January really feels in Kiến An

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.

Kiến An 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
Jan19° / 16°37710.96.3
Feb20° / 17°225.511.36.5
Mar22° / 19°397.611.96.7
Apr26° / 23°578.412.56.7
May29° / 26°20716.9134.5
Jun31° / 28°21418.413.23.3
Jul31° / 28°28120.113.13.2
Aug31° / 27°38124.412.73.0
Sep30° / 26°2902012.13.8
Oct28° / 24°13312.411.55.9
Nov25° / 21°608.2117.2
Dec21° / 17°376.510.86.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 72%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23763
33664
43367
53367
63169
73169
82872
92872
102773
112674
122575
132476
142476
152476
162476
172476
182476
192476
202575
212575
222575
232575
242674
252674
262674
272674
282674
292674
302773
312773

Chance of precipitation in January

Any precipitation

Kiến An gets around 37 mm of rain over 7 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 22% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
123
223
323
423
523
623
723
823
923
1023
1122
1222
1322
1422
1522
1622
1722
1822
1922
2022
2122
2222
2322
2422
2522
2623
2723
2822
2922
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 41% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1381925161
2381925171
3381925181
4381924181
5381923191
6391923191
7391922191
8391922191
9391922191
10392022191
11392021191
12392021181
13402021181
14402022171
15412022171
16412022161
17422022161
18422022160
19432022150
20431922150
21441922150
22441923150
23441823150
24451823150
25451723150
26451723150
27451723150
28451722150
29451722161
30441722161
31431822161

Wind in January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3112light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 48 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 12 minutes over January. Sunrise moves from 6:34 AM to 6:35 AM, and sunset from 5:19 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:345:19
210.86:345:20
310.86:355:21
410.86:355:21
510.86:355:22
610.86:355:22
710.86:365:23
810.86:365:24
910.86:365:24
1010.86:365:25
1110.86:365:25
1210.86:365:26
1310.86:375:27
1410.86:375:27
1510.96:375:28
1610.96:375:29
1710.96:375:29
1810.96:375:30
1910.96:375:31
2010.96:375:31
2110.96:375:32
2210.96:375:33
2310.96:375:33
2411.06:375:34
2511.06:375:35
2611.06:365:35
2711.06:365:36
2811.06:365:36
2911.06:365:37
3011.06:365:38
3111.06:355:38

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.54 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.54 kWh/m² to a high of 5.22 kWh/m² in May across the year — January's 2.54 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.6Moderate
242.6Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.7Moderate
302.7Moderate
312.7Moderate
Planning a trip in January

Hazard calendar for Kiến An

In seasonPeak

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

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

Kiến An's monsoon runs May–September, 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 Kiến An?

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

6.3
Sightseeing
6th-best month of the year
2.9
Beach & pool
12th-best month of the year

January is a reasonable time to visit Kiến An for sightseeing.

What to pack for Kiến An in January

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

In January, Kiến An sees daytime highs around 19°C and nights near 16°C. Little to plan around — just the basics. About 7 days see rain.

Sea temperature near Kiến An in January

The nearest coast averages about 20°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 20 km away) is warmest in August at about 30°C and coldest in February near 20°C.

It's comfortable for a long swim from Feb 24 to Feb 2 — about 11.3 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Refreshing
Feb20Cool
Mar21Refreshing
Apr23Refreshing
May27Warm
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct28Tropical
Nov26Warm
Dec23Refreshing

UV index in Kiến An 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 Kiến An peaks around July 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 12UV 12Dec 17UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar8Very high
Apr8Very high
May10Very high
Jun11Extreme
Jul12Extreme
Aug7Very high
Sep8Very high
Oct9Very high
Nov7High
Dec6High

Air quality in Kiến An 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 Kiến An 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 Kiến An?

Kiến An sits at 20.8°N, 106.6°E, 10 m above sea level, in Vietnam. The nearest listed city is Haiphong, 9.0 km away.

Topography around Kiến An

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

Within 3 km, the terrain around Kiến An has only modest variations in elevation — a maximum elevation change of 136 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 138 m; within 80 km, large variations in elevation — a maximum elevation change of 1,180 m.

The land around Kiến An is covered by artificial surfaces (33%), trees (29%) and cropland (21%) within 3 km, cropland (34%) and artificial surfaces (24%) within 16 km, and trees (31%), water (30%) and cropland (28%) within 80 km.

3 km
136 m
16 km
138 m
80 km
1,180 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
January weather nearby: Haiphong 9.0 km · Đố Sơn 20 km · Thị Trấn Mạo Khê 28 km · Thành Phố Uông Bí 30 km · Thị Trấn Đông Triều 33 km · Hải Dương 34 km · Chí Linh 43 km · Cát Bà 45 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 Kiến An (20.8053°, 106.6256°, elevation 10 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).