Chí Linh weather in April

In April, Chí Linh sees average daytime highs of 28°C and overnight lows near 22°C, with 82 mm of rain across 11.3 wet days and about 12.5 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 30°C by the end. The sky is clear or mostly clear about 11% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of April to 12 h 42 min by month's end. Set against the rest of the year, April is Chí Linh's 5th-clearest and 1st-windiest month. For the whole year in context, see Chí Linh's year-round climate.

Daytime high
28°
7th warmest
Overnight low
22°
6th coldest
Rainfall
82 mm
11.3 wet days
Daylight
12 h 30 min
5:40 AM – 6:09 PM
Cloud cover
75%
5th clearest
Wind
10 km/h
1st windiest
Solar energy
4.15 kWh/m²
Travel score
5.4
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 30°C by the end.

A typical April day in Chí Linh reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 32°C. Set against its neighbours, April runs about 4°C warmer than March and about 3°C cooler than May.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12620
22621
32621
42621
52621
62721
72721
82721
92721
102722
112722
122822
132822
142822
152822
162822
172923
182923
192923
202923
212923
222923
232923
242923
253024
263024
273024
283024
293024
303024

How April really feels in Chí Linh

Once humidity and wind are folded in, April averages 10 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
10
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Chí Linh weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 14°36710.96.3
Feb22° / 16°246.611.36.5
Mar24° / 19°509.911.96.5
Apr28° / 22°8211.312.55.4
May31° / 25°24418.7133.3
Jun33° / 27°24620.413.32.4
Jul33° / 27°27622.513.22.3
Aug32° / 26°35325.312.72.4
Sep31° / 25°24419.912.13.2
Oct29° / 23°11912.611.55.2
Nov26° / 19°607.4117.0
Dec22° / 16°346.710.77.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11684
21783
31882
41981
51981
61981
72080
82080
92179
102179
112278
122377
132377
142476
152476
162476
172476
182575
192575
202575
212575
222575
232575
242575
252674
262674
272773
282773
292773
302971

Chance of precipitation in April

Any precipitation

Chí Linh gets around 82 mm of rain over 11.3 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 38% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
137
237
338
438
537
637
737
837
936
1036
1136
1236
1336
1435
1536
1636
1736
1836
1937
2037
2138
2239
2339
2440
2541
2642
2743
2844
2945
3046

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the oppressive band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
16101530353
2691530364
3591529375
4591528386
5481428406
6481426407
7481425418
8381424429
93814224310
103813214411
112713204413
122712194514
132712194515
142711184517
151711174518
161610174520
171610174521
18159174523
19159174424
20158174425
21148174327
22047174329
23037174231
24036174133
25036174035
26025163937
27025163839
28025163641
29025153543
30015153345

Wind in April

Winds average 10 km/h in April, the windiest month of the year.

Across April, 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.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 12 min at the start of April to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over April. Sunrise moves from 5:54 AM to 5:30 AM, and sunset from 6:05 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:546:05
212.25:536:05
312.25:526:05
412.25:516:06
512.35:506:06
612.35:496:06
712.35:486:07
812.35:476:07
912.35:476:07
1012.45:466:08
1112.45:456:08
1212.45:446:08
1312.45:436:08
1412.45:426:09
1512.55:416:09
1612.55:406:09
1712.55:406:10
1812.55:396:10
1912.55:386:10
2012.65:376:11
2112.65:366:11
2212.65:366:11
2312.65:356:12
2412.65:346:12
2512.75:336:13
2612.75:336:13
2712.75:326:13
2812.75:316:14
2912.75:306:14
3012.75:306:14

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.15 kWh/m².

For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 4.96 kWh/m² in June across the year — April's 4.15 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.5Moderate
43.5Moderate
53.6Moderate
63.7Moderate
73.7Moderate
83.8Moderate
93.8Moderate
103.9Moderate
114.0Moderate
124.0Bright
134.1Bright
144.1Bright
154.2Bright
164.2Bright
174.3Bright
184.3Bright
194.4Bright
204.4Bright
214.5Bright
224.5Bright
234.5Bright
244.6Bright
254.6Bright
264.6Bright
274.7Bright
284.7Bright
294.7Bright
304.8Bright
Planning a trip in April

Hazard calendar for Chí Linh

In seasonPeak

In April, Chí Linh sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Chí Linh sits in the Pacific typhoon belt; the season peaks July–October.

Chí Linh's monsoon runs May–September, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Chí Linh?

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

5.4
Sightseeing
6th-best month of the year
6.2
Beach & pool
3rd-best month of the year

April is a reasonable time to visit Chí Linh for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Chí Linh in April

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

In April, Chí Linh sees daytime highs around 28°C and nights near 22°C. Pack light clothes. Worth having: rain gear. About 11 days see rain.

light clothesrain gear

Sea temperature near Chí Linh in April

The nearest coast averages about 23°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 59 km away) is warmest in August at about 30°C and coldest in February near 20°C.

It's comfortable for a long swim from Feb 24 to Feb 2 — about 11.3 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Refreshing
Feb20Cool
Mar21Refreshing
Apr23Refreshing
May27Warm
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct28Tropical
Nov26Warm
Dec23Refreshing

UV index in Chí Linh in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chí Linh peaks around June 21 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 21UV 11Dec 15UV 6
UV index (midday)Level
Jan7High
Feb7Very high
Mar8Very high
Apr7High
May9Very high
Jun12Extreme
Jul11Extreme
Aug8Very high
Sep8Very high
Oct8Very high
Nov6High
Dec6High

Air quality in Chí Linh 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 Chí Linh is worst in December — around 92 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (July, 35 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyDec 2192 µg/m³Jul 1335 µg/m³
PM2.5 (µg/m³)Level
Jan90Unhealthy
Feb80Unhealthy
Mar76Unhealthy
Apr66Unhealthy
May49Poor
Jun37Poor
Jul35Moderate
Aug40Poor
Sep59Unhealthy
Oct74Unhealthy
Nov82Unhealthy
Dec92Unhealthy
Location & terrain

Where is Chí Linh?

Chí Linh sits at 21.1°N, 106.3°E, 5 m above sea level, in Vietnam. The nearest listed city is Hải Dương, 14 km away.

Topography around Chí Linh

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

Within 3 km, the terrain around Chí Linh has only modest variations in elevation — a maximum elevation change of 9 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 240 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,297 m.

The land around Chí Linh is covered by cropland (48%) within 3 km, cropland (50%) and trees (22%) within 16 km, and trees (45%) and cropland (32%) within 80 km.

3 km
9 m
16 km
240 m
80 km
1,297 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Hải Dương 14 km · Thị Trấn Đông Triều 21 km · Cung Kiệm 21 km · Thuận Thanh 25 km · Bắc Giang 26 km · Bắc Ninh 28 km · Thị Trấn Mạo Khê 29 km · Việt Yên 29 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 Chí Linh (21.0667°, 106.3167°, elevation 5 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).