Thị Trấn Phố Lu weather in April

In April, Thị Trấn Phố Lu sees average daytime highs of 28°C and overnight lows near 20°C, with 116 mm of rain across 18.4 wet days and about 12.5 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 29°C by the end. The sky is clear or mostly clear about 27% of the time in April, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of April to 12 h 48 min by month's end. Set against the rest of the year, April is Thị Trấn Phố Lu's 2nd-clearest and 4th-windiest month. For the whole year in context, see Thị Trấn Phố Lu's year-round climate.

Daytime high
28°
6th warmest
Overnight low
20°
6th coldest
Rainfall
116 mm
18.4 wet days
Daylight
12 h 30 min
5:48 AM – 6:19 PM
Cloud cover
62%
2nd clearest
Wind
4 km/h
4th windiest
Solar energy
4.65 kWh/m²
Travel score
4.8
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 29°C by the end.

A typical April day in Thị Trấn Phố Lu reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 34°C. Set against its neighbours, April runs about 4°C warmer than March and about 2°C cooler than May.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12618
22618
32618
42618
52618
62718
72719
82719
92719
102719
112719
122819
132819
142820
152820
162820
172820
182820
192920
202920
212920
222921
232921
242921
252921
262921
272921
282921
292921
303021

How April really feels in Thị Trấn Phố Lu

Once humidity and wind are folded in, April 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

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Thị Trấn Phố Lu weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 12°7316.410.85.0
Feb20° / 13°6515.511.25.3
Mar24° / 16°9618.111.85.5
Apr28° / 20°11618.412.54.8
May30° / 23°23521.713.13.6
Jun31° / 24°29623.813.32.8
Jul31° / 25°34424.613.22.9
Aug30° / 24°35223.912.83.1
Sep29° / 23°21120.512.14.0
Oct26° / 20°12716.211.55.7
Nov23° / 16°7913.510.96.2
Dec20° / 13°7013.210.75.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23862
34159
44159
54357
64357
74357
84555
94555
104654
114753
124753
134753
144852
154753
164753
174753
184753
194753
204753
214654
224654
234654
244654
254555
264654
274654
284654
294654
304555

Chance of precipitation in April

Any precipitation

Thị Trấn Phố Lu gets around 116 mm of rain over 18.4 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 61% and peaks near 65% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
164
264
363
463
562
662
761
861
960
1060
1159
1259
1358
1458
1558
1658
1759
1859
1959
2060
2161
2261
2362
2462
2562
2663
2763
2864
2964
3065

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the muggy band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 71% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1613324180
2613314290
35133042100
45122943110
54122843120
64122744140
73122644150
83122543170
93122443180
102112343200
112112243220
122102142240
132102042260
14191942280
15191942290
16181841310
17181741331
18171741341
19161641351
20061641371
21051540381
22051540391
23041440401
24041440421
25031340431
26031340441
27031239451
28031238461
29021238471
30021237481

Wind in April

Winds average 4 km/h in April.

Across April, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in April

DaylightNight

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

Days grow by about 36 minutes over April. Sunrise moves from 6:02 AM to 5:37 AM, and sunset from 6:14 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:026:14
212.26:016:14
312.26:006:14
412.35:596:15
512.35:586:15
612.35:576:15
712.35:566:16
812.35:556:16
912.45:546:16
1012.45:536:17
1112.45:536:17
1212.45:526:17
1312.55:516:18
1412.55:506:18
1512.55:496:19
1612.55:486:19
1712.55:476:19
1812.65:466:20
1912.65:456:20
2012.65:456:20
2112.65:446:21
2212.65:436:21
2312.75:426:22
2412.75:416:22
2512.75:416:22
2612.75:406:23
2712.75:396:23
2812.85:386:24
2912.85:376:24
3012.85:376:24

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.65 kWh/m².

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 4.78 kWh/m² in May across the year — April's 4.65 kWh/m² sits near the top of that range.

024151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.3Bright
44.3Bright
54.3Bright
64.4Bright
74.4Bright
84.5Bright
94.5Bright
104.5Bright
114.6Bright
124.6Bright
134.6Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in April

Hazard calendar for Thị Trấn Phố Lu

In seasonPeak

None of Thị Trấn Phố Lu's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Thị Trấn Phố Lu's rainy season runs May–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Thị Trấn Phố Lu?

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

4.8
Sightseeing
7th-best month of the year
5.4
Beach & pool
2nd-best month of the year

April is a reasonable time to visit Thị Trấn Phố Lu for sightseeing.

What to pack for Thị Trấn Phố Lu in April

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

In April, Thị Trấn Phố Lu sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Thị Trấn Phố Lu in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Phố Lu peaks around June 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highVery highExtremeVery highHighJun 21UV 13Dec 18UV 5
UV index (midday)Level
Jan6High
Feb8Very high
Mar11Extreme
Apr8Very high
May10Very high
Jun14Extreme
Jul13Extreme
Aug12Extreme
Sep10Very high
Oct8Very high
Nov7High
Dec5High

Air quality in Thị Trấn Phố Lu in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Thị Trấn Phố Lu is worst in March — around 49 µg/m³ PM2.5 (poor), about 2.8× the cleanest month (July, 17 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorMar 2349 µg/m³Jul 1817 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb40Poor
Mar49Poor
Apr48Poor
May30Moderate
Jun19Moderate
Jul17Moderate
Aug18Moderate
Sep23Moderate
Oct28Moderate
Nov33Moderate
Dec36Poor
Location & terrain

Where is Thị Trấn Phố Lu?

Thị Trấn Phố Lu sits at 22.3°N, 104.2°E, 77 m above sea level, in Vietnam. The nearest listed city is Lào Cai, 29 km away.

Hà Giang

Topography around Thị Trấn Phố Lu

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

Within 3 km, the terrain around Thị Trấn Phố Lu has significant variations in elevation — a maximum elevation change of 328 m around an average of 149 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,129 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,061 m.

The land around Thị Trấn Phố Lu is covered by trees (86%) within 3 km, trees (91%) within 16 km, and trees (87%) within 80 km.

3 km
328 m
16 km
2,129 m
80 km
3,061 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Lào Cai 29 km · Sapa 35 km · Thị Trấn Việt Quang 65 km · Bắc Quang 72 km · Lai Châu 75 km · Nghĩa Lộ 87 km · Ít Ong 91 km · Hà Giang 99 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 Phố Lu (22.3192°, 104.1872°, elevation 77 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).