Bắc Ninh weather in May

In May, Bắc Ninh sees average daytime highs of 32°C and overnight lows near 25°C, with 251 mm of rain across 18.4 wet days and about 13 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 31°C in the first days to 33°C by the end. The sky is clear or mostly clear about 11% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 48 min at the start of May to 13 h 12 min by month's end. Set against the rest of the year, May is Bắc Ninh's 6th-clearest and 2nd-windiest month. For the whole year in context, see Bắc Ninh's year-round climate.

Daytime high
32°
4th warmest
Overnight low
25°
9th coldest
Rainfall
251 mm
18.4 wet days
Daylight
13 hours
5:22 AM – 6:22 PM
Cloud cover
76%
6th clearest
Wind
9 km/h
2nd windiest
Solar energy
4.72 kWh/m²
Travel score
3.2
out of 10

Bắc Ninh is provincial city of Vietnam.

Density
3,483/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 31°C in the first days to 33°C by the end.

A typical May day in Bắc Ninh reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 36°C. Set against its neighbours, May runs about 3°C warmer than April and about 1°C cooler than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73125
83125
93125
103125
113225
123225
133225
143225
153225
163225
173225
183225
193225
203225
213225
223225
233226
243226
253226
263226
273226
283326
293326
303326
313326

How May really feels in Bắc Ninh

Once humidity and wind are folded in, May averages 31 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
31
7 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Bắc Ninh weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 14°388.110.96.2
Feb22° / 16°257.111.36.5
Mar24° / 19°5210.511.96.4
Apr29° / 22°9211.712.55.1
May32° / 25°25118.4133.2
Jun33° / 27°28320.313.32.3
Jul33° / 27°30922.613.22.2
Aug33° / 26°36124.412.72.4
Sep32° / 25°23318.612.13.2
Oct30° / 22°11011.111.55.2
Nov26° / 19°577117.1
Dec22° / 15°326.410.77.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
33070
43070
53169
63169
73169
83169
93169
103070
113070
123070
133070
142773
152773
162674
172674
182575
192377
202377
212278
222179
232080
241981
251981
261882
271783
281783
291684
301684
311486

Chance of precipitation in May

Any precipitation

Bắc Ninh gets around 251 mm of rain over 18.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 59% and peaks near 68% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
146
247
348
449
550
651
752
853
954
1055
1156
1257
1358
1459
1560
1660
1761
1862
1962
2062
2163
2264
2364
2465
2565
2666
2767
2867
2967
3068
3168

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
116163345
215153246
315153148
415143050
504142953
604132954
704132855
804122757
904122658
1004122658
1104112560
1203112561
1303112561
1403102562
1503102562
1603102562
170392563
180292465
190292465
200292465
210282367
220282367
230282268
240282169
250172171
260172072
270161974
280161875
290151777
300151678
310141481

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 48 min at the start of May to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over May. Sunrise moves from 5:30 AM to 5:18 AM, and sunset from 6:16 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:306:16
212.85:296:16
312.85:296:17
412.85:286:17
512.85:276:18
612.95:276:18
712.95:266:18
812.95:266:19
912.95:256:19
1012.95:256:20
1112.95:246:20
1212.95:246:20
1313.05:236:21
1413.05:236:21
1513.05:226:22
1613.05:226:22
1713.05:216:23
1813.05:216:23
1913.05:216:23
2013.15:206:24
2113.15:206:24
2213.15:206:25
2313.15:196:25
2413.15:196:26
2513.15:196:26
2613.15:196:26
2713.15:186:27
2813.25:186:27
2913.25:186:28
3013.25:186:28
3113.25:186:29

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.72 kWh/m².

For context, solar energy here swings from a low near 2.15 kWh/m² to a high of 4.82 kWh/m² in June across the year — May's 4.72 kWh/m² sits near the top of that range.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.8Bright
314.8Bright
Planning a trip in May

Hazard calendar for Bắc Ninh

In seasonPeak

In May, Bắc Ninh sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Bắc Ninh'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 May a good time to visit Bắc Ninh?

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

3.2
Sightseeing
8th-best month of the year
5.1
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Bắc Ninh.

What to pack for Bắc Ninh in May

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

In May, Bắc Ninh sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Bắc Ninh in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bắc Ninh 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 Bắc Ninh in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Bắc Ninh is worst in December — around 171 µg/m³ PM2.5 (very unhealthy), about 3.4× the cleanest month (July, 50 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyPoorUnhealthyVery unhealthyDec 19170 µg/m³Jul 1452 µg/m³
PM2.5 (µg/m³)Level
Jan161Very unhealthy
Feb136Unhealthy
Mar122Unhealthy
Apr106Unhealthy
May76Unhealthy
Jun59Unhealthy
Jul50Poor
Aug68Unhealthy
Sep96Unhealthy
Oct125Unhealthy
Nov152Very unhealthy
Dec171Very unhealthy
Location & terrain

Where is Bắc Ninh?

Bắc Ninh sits at 21.2°N, 106.1°E, 9 m above sea level, in Vietnam. The nearest listed city is Cung Kiệm, 9.0 km away.

Topography around Bắc Ninh

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

Within 3 km, the terrain around Bắc Ninh has only modest variations in elevation — a maximum elevation change of 49 m around an average of 7 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 236 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,720 m.

The land around Bắc Ninh is covered by artificial surfaces (45%) and cropland (26%) within 3 km, cropland (52%) and artificial surfaces (22%) within 16 km, and trees (54%) and cropland (31%) within 80 km.

3 km
49 m
16 km
236 m
80 km
1,720 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Cung Kiệm 9.0 km · Việt Yên 11 km · Từ Sơn 15 km · Thuận Thanh 16 km · Bắc Giang 16 km · Cổ Lóa 23 km · Gia Lâm 23 km · Trâu Quỳ 24 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 Bắc Ninh (21.1861°, 106.0763°, 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. 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).