Phổ Yên weather in May

In May, Phổ Yên sees average daytime highs of 31°C and overnight lows near 25°C, with 240 mm of rain across 19.1 wet days and about 13 hours of daylight. It is the 5th-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 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 Phổ Yên's 5th-clearest and 3rd-windiest month. For the whole year in context, see Phổ Yên's year-round climate.

Daytime high
31°
5th warmest
Overnight low
25°
9th coldest
Rainfall
240 mm
19.1 wet days
Daylight
13 hours
5:22 AM – 6:23 PM
Cloud cover
76%
5th clearest
Wind
8 km/h
3rd windiest
Solar energy
4.61 kWh/m²
Travel score
3.4
out of 10

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 Phổ Yên reaches about 31°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 27°C and 35°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)
13023
23024
33024
43024
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163125
173125
183125
193125
203125
213125
223225
233225
243225
253225
263225
273225
283225
293225
303225
313225

How May really feels in Phổ Yên

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
2 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.

Phổ Yên weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 14°5110.810.85.8
Feb21° / 15°4210.711.35.8
Mar24° / 18°7214.611.85.8
Apr28° / 22°9913.812.55.1
May31° / 25°24019.1133.4
Jun33° / 26°29321.113.32.5
Jul33° / 26°31723.213.22.5
Aug32° / 26°35924.712.72.5
Sep31° / 25°21117.912.13.4
Oct29° / 22°9510.711.55.4
Nov26° / 19°567.4117.0
Dec22° / 15°387.710.76.8

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 14% of May, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22971
33070
43070
53169
63169
73169
83070
93070
103070
113070
122971
132971
142872
152773
162773
172575
182575
192476
202377
212377
222278
232080
241981
251981
261981
271783
281783
291684
301684
311585

Chance of precipitation in May

Any precipitation

Phổ Yên gets around 240 mm of rain over 19.1 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 62% and peaks near 70% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
150
251
352
453
554
655
756
857
958
1058
1159
1260
1361
1461
1562
1663
1763
1863
1964
2064
2165
2265
2366
2466
2567
2668
2768
2869
2969
3070
3170

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
126173639
216173541
315163443
415163344
515163346
614153248
714153150
804143052
904142953
1004142953
1104132855
1204132855
1304132855
1403122857
1503122857
1603122857
1703112759
1803112759
1903102760
2003102661
2103102661
220292564
230292564
240292465
250282466
260272368
270172270
280162172
290152074
300151975
310141877

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 6:17 PM to 6:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:306:17
212.85:306:17
312.85:296:18
412.85:286:18
512.85:286:19
612.95:276:19
712.95:276:19
812.95:266:20
912.95:256:20
1012.95:256:21
1112.95:246:21
1213.05:246:22
1313.05:236:22
1413.05:236:22
1513.05:236:23
1613.05:226:23
1713.05:226:24
1813.05:216:24
1913.15:216:25
2013.15:216:25
2113.15:206:25
2213.15:206:26
2313.15:206:26
2413.15:196:27
2513.15:196:27
2613.15:196:28
2713.25:196:28
2813.25:186:28
2913.25:186:29
3013.25:186:29
3113.25:186:30

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.61 kWh/m².

For context, solar energy here swings from a low near 2.12 kWh/m² to a high of 4.71 kWh/m² in June across the year — May's 4.61 kWh/m² sits near the top of that range.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.7Bright
Planning a trip in May

Hazard calendar for Phổ Yên

In seasonPeak

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

Phổ 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 May a good time to visit Phổ Yên?

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

3.4
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 Phổ Yên.

What to pack for Phổ Yên in May

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

In May, Phổ Yên sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Phổ Yên 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 Phổ Yên peaks around July 11 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 highHighJul 11UV 11Nov 23UV 6
UV index (midday)Level
Jan6High
Feb7High
Mar9Very high
Apr6High
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep8Very high
Oct8Very high
Nov6High
Dec6High

Air quality in Phổ Yên 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 Phổ Yên is worst in December — around 102 µg/m³ PM2.5 (unhealthy), about 2.8× the cleanest month (July, 37 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyDec 20102 µg/m³Jul 1738 µg/m³
PM2.5 (µg/m³)Level
Jan98Unhealthy
Feb89Unhealthy
Mar86Unhealthy
Apr79Unhealthy
May57Unhealthy
Jun44Poor
Jul37Poor
Aug44Poor
Sep59Unhealthy
Oct76Unhealthy
Nov92Unhealthy
Dec102Unhealthy
Location & terrain

Where is Phổ Yên?

Phổ Yên sits at 21.4°N, 105.9°E, 22 m above sea level, in Vietnam. The nearest listed city is Thành phố Sông Công, 8.0 km away.

Topography around Phổ Yên

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

Within 3 km, the terrain around Phổ Yên has only modest variations in elevation — a maximum elevation change of 53 m around an average of 17 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 449 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,720 m.

The land around Phổ Yên is covered by trees (38%), artificial surfaces (30%) and cropland (24%) within 3 km, trees (51%) and cropland (35%) within 16 km, and trees (66%) and cropland (23%) within 80 km.

3 km
53 m
16 km
449 m
80 km
1,720 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Thành phố Sông Công 8.0 km · Sóc Sơn 19 km · Thái Nguyên 20 km · Phúc Yên 28 km · Quang Minh 28 km · Việt Yên 30 km · Vĩnh Yên 32 km · Bắc Ninh 32 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 Phổ Yên (21.4198°, 105.8899°, 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. 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).