Ninh Binh weather in May

In May, Ninh Binh sees average daytime highs of 31°C and overnight lows near 25°C, with 185 mm of rain across 15.9 wet days and about 12.9 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 30°C in the first days to 32°C by the end. The sky is clear or mostly clear about 12% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 42 min at the start of May to 13 h 06 min by month's end. Set against the rest of the year, May is Ninh Binh's 6th-clearest and 2nd-windiest month. For the whole year in context, see Ninh Binh's year-round climate.

Daytime high
31°
4th warmest
Overnight low
25°
9th coldest
Rainfall
185 mm
15.9 wet days
Daylight
13 hours
5:24 AM – 6:21 PM
Cloud cover
75%
6th clearest
Wind
10 km/h
2nd windiest
Solar energy
5.28 kWh/m²
Travel score
3.6
out of 10

Ninh Binh is dissolved municipality of Ninh Bình province, Vietnam.

Density
762/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 30°C in the first days to 32°C by the end.

A typical May day in Ninh Binh reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 35°C. Set against its neighbours, May runs about 4°C warmer than April and about 2°C cooler than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43025
53025
63025
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173126
183226
193226
203226
213226
223226
233226
243226
253226
263226
273226
283226
293226
303326
313327

How May really feels in Ninh Binh

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
8 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.

Ninh Binh 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° / 15°306.210.96.5
Feb21° / 16°184.511.36.9
Mar24° / 19°366.811.97.0
Apr28° / 22°678.612.46.0
May31° / 25°18515.912.93.6
Jun33° / 27°18215.313.22.7
Jul33° / 27°24618.413.12.7
Aug32° / 27°33423.612.72.6
Sep31° / 25°28921.112.13.3
Oct29° / 23°15414.211.55.2
Nov26° / 20°628.6116.9
Dec22° / 16°285.510.87.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 73%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43169
53268
63367
73367
83367
93367
103367
113367
123268
133268
143169
153070
162971
172872
182773
192674
202575
212575
222278
232179
242179
252080
261981
271981
281882
291783
301783
311684

Chance of precipitation in May

Any precipitation

Ninh Binh gets around 185 mm of rain over 15.9 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 51% and peaks near 58% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
139
240
341
442
543
644
745
846
947
1047
1148
1249
1350
1451
1552
1652
1753
1853
1954
2054
2155
2256
2356
2457
2557
2657
2758
2858
2958
3058
3157

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 71% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13123253
23113056
33112957
43102859
5392761
6392662
7382465
8382366
9382267
10272269
11272170
12272070
13272071
14272071
15271972
16271972
17271972
18271972
19271972
20271873
21161875
22161776
23161776
24161677
25151678
26151579
27141481
28141382
29031384
30031285
31021187

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 h 06 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 5:31 AM to 5:20 AM, and sunset from 6:15 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:316:15
212.75:316:16
312.85:306:16
412.85:306:16
512.85:296:17
612.85:286:17
712.85:286:17
812.85:276:18
912.95:276:18
1012.95:266:19
1112.95:266:19
1212.95:256:19
1312.95:256:20
1412.95:246:20
1512.95:246:21
1613.05:246:21
1713.05:236:21
1813.05:236:22
1913.05:226:22
2013.05:226:23
2113.05:226:23
2213.05:226:24
2313.05:216:24
2413.15:216:24
2513.15:216:25
2613.15:216:25
2713.15:206:26
2813.15:206:26
2913.15:206:26
3013.15:206:27
3113.15:206:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.28 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 5.33 kWh/m² in June across the year — May's 5.28 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Hazard calendar for Ninh Binh

In seasonPeak

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

Ninh Binh sits in the Pacific typhoon belt; the season peaks July–October.

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

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

3.6
Sightseeing
8th-best month of the year
5.5
Beach & pool
5th-best month of the year

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

What to pack for Ninh Binh in May

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

In May, Ninh Binh sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Ninh Binh in May

The nearest coast averages about 27°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 44 km away) is warmest in August at about 30°C and coldest in February near 20°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
Feb20Refreshing
Mar21Refreshing
Apr24Refreshing
May27Warm
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct28Tropical
Nov26Warm
Dec23Refreshing

UV index in Ninh Binh in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ninh Binh peaks around July 12 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highVery highExtremeVery highHighJul 12UV 11Dec 16UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar9Very high
Apr7High
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep8Very high
Oct8Very high
Nov7High
Dec6High

Air quality in Ninh Binh 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 Ninh Binh 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 Ninh Binh?

Ninh Binh sits at 20.3°N, 106.0°E, 7 m above sea level, in Vietnam. The nearest listed city is Bỉm Sơn, 24 km away.

Topography around Ninh Binh

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

Within 3 km, the terrain around Ninh Binh has only modest variations in elevation — a maximum elevation change of 65 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 241 m; within 80 km, large variations in elevation — a maximum elevation change of 1,184 m.

The land around Ninh Binh is covered by artificial surfaces (43%) and cropland (22%) within 3 km, cropland (54%) and trees (22%) within 16 km, and cropland (35%), trees (32%) and water (24%) within 80 km.

3 km
65 m
16 km
241 m
80 km
1,184 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Bỉm Sơn 24 km · Nga Sơn 28 km · Nam Định 28 km · Phủ Lý 33 km · Thái Bình 43 km · Hưng Yên 44 km · Lương Bằng 54 km · Thanh Hóa 56 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 Ninh Binh (20.2581°, 105.9797°, elevation 7 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).