Thị Trấn Thất Khê weather in May

In May, Thị Trấn Thất Khê sees average daytime highs of 29°C and overnight lows near 23°C, with 210 mm of rain across 20.5 wet days and about 13.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 10% of the time in May, and the air most often feels oppressive.

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 Thị Trấn Thất Khê's 6th-clearest and 4th-windiest month. For the whole year in context, see Thị Trấn Thất Khê's year-round climate.

Daytime high
29°
5th warmest
Overnight low
23°
9th coldest
Rainfall
210 mm
20.5 wet days
Daylight
13 h 06 min
5:18 AM – 6:22 PM
Cloud cover
76%
6th clearest
Wind
8 km/h
4th windiest
Solar energy
4.43 kWh/m²
Travel score
3.9
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Thị Trấn Thất Khê reaches about 29°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, May runs about 3°C warmer than April and about 1°C cooler than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12922
22922
32922
42922
52922
62922
72922
82922
92922
102922
112923
122923
132923
142923
152923
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293024
303024
313024

How May really feels in Thị Trấn Thất Khê

Once humidity and wind are folded in, May averages 22 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
22
heat index over the day's high
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.

Thị Trấn Thất Khê 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
Jan17° / 11°398.210.85.4
Feb19° / 13°297.211.26.0
Mar22° / 16°591111.86.1
Apr26° / 20°901312.55.7
May29° / 23°21020.513.13.9
Jun31° / 24°27624.213.32.9
Jul31° / 25°27524.313.22.9
Aug31° / 24°26623.712.83.0
Sep30° / 23°14816.312.14.3
Oct27° / 20°719.411.56.4
Nov24° / 16°547.310.97.2
Dec19° / 12°376.710.76.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% 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 76%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43070
53169
63169
73070
83070
92971
102971
112872
122872
132773
142773
152674
162674
172476
182476
192278
202278
212179
222080
231981
241882
251882
261783
271783
281585
291486
301387
311288

Chance of precipitation in May

Any precipitation

Thị Trấn Thất Khê gets around 210 mm of rain over 20.5 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 66% and peaks near 75% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
156
257
358
459
560
660
761
862
962
1063
1164
1264
1365
1465
1566
1666
1766
1867
1967
2068
2168
2269
2370
2471
2571
2672
2773
2874
2974
3075
3175

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
151125545
251124546
341124547
441023558
541023549
6410225410
739215511
839215413
939215314
1039205315
1139205117
1238205118
1338204920
1428204821
1528204822
1628194723
1727194625
1827194626
1927194527
2027194528
2126194429
2226184430
2316184431
2415174433
2515164434
2615154336
2714154337
2814144339
2913134241
3013124243
3112114145

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
89calm
99calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
237calm
247calm
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 5:27 AM to 5:14 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)
112.85:276:16
212.85:266:16
312.85:266:16
412.95:256:17
512.95:246:17
612.95:246:18
712.95:236:18
812.95:236:19
913.05:226:19
1013.05:216:20
1113.05:216:20
1213.05:206:20
1313.05:206:21
1413.05:196:21
1513.05:196:22
1613.15:186:22
1713.15:186:23
1813.15:186:23
1913.15:176:24
2013.15:176:24
2113.15:176:25
2213.15:166:25
2313.25:166:25
2413.25:166:26
2513.25:156:26
2613.25:156:27
2713.25:156:27
2813.25:156:28
2913.25:146:28
3013.25:146:29
3113.25:146:29

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.43 kWh/m².

For context, solar energy here swings from a low near 2.13 kWh/m² to a high of 4.57 kWh/m² in July across the year — May's 4.43 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in May

Hazard calendar for Thị Trấn Thất Khê

In seasonPeak

In May, Thị Trấn Thất Khê sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Thị Trấn Thất Khê'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 Thị Trấn Thất Khê?

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

3.9
Sightseeing
9th-best month of the year
5.1
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Thị Trấn Thất Khê.

What to pack for Thị Trấn Thất Khê in May

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

In May, Thị Trấn Thất Khê sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 21 days see rain.

light clothesrain gear

UV index in Thị Trấn Thất Khê 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 Thị Trấn Thất Khê peaks around June 23 at about 12 (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 23UV 12Nov 23UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr6High
May8Very high
Jun13Extreme
Jul12Extreme
Aug11Extreme
Sep9Very high
Oct8Very high
Nov6High
Dec6High

Air quality in Thị Trấn Thất Khê 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 Thị Trấn Thất Khê is worst in April — around 44 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (July, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorApr 944 µg/m³Jul 2020 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb41Poor
Mar44Poor
Apr44Poor
May30Moderate
Jun23Moderate
Jul20Moderate
Aug21Moderate
Sep24Moderate
Oct28Moderate
Nov33Moderate
Dec39Poor
Location & terrain

Where is Thị Trấn Thất Khê?

Thị Trấn Thất Khê sits at 22.3°N, 106.5°E, 159 m above sea level, in Vietnam. The nearest listed city is Cao Bằng, 51 km away.

Thái NguyênChũ

Topography around Thị Trấn Thất Khê

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Thị Trấn Thất Khê.

Within 3 km, the terrain around Thị Trấn Thất Khê has significant variations in elevation — a maximum elevation change of 308 m around an average of 204 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 868 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,877 m.

The land around Thị Trấn Thất Khê is covered by trees (66%) and cropland (28%) within 3 km, trees (92%) within 16 km, and trees (89%) within 80 km.

3 km
308 m
16 km
868 m
80 km
1,877 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Cao Bằng 51 km · Lạng Sơn 54 km · Thị Trấn Nước Hai 63 km · Thị Trấn Trùng Khánh 65 km · Bắc Kạn 67 km · Thị Trấn Na Dương 79 km · Thái Nguyên 98 km · Chũ 98 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 Thị Trấn Thất Khê (22.2553°, 106.4736°, elevation 159 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).