Cai Lậy weather in April

In April, Cai Lậy sees average daytime highs of 34°C and overnight lows near 26°C, with 75 mm of rain across 12.2 wet days and about 12.2 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 26% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of April to 12 h 24 min by month's end. Set against the rest of the year, April is Cai Lậy's 3rd-clearest and 7th-windiest month. For the whole year in context, see Cai Lậy's year-round climate.

Daytime high
34°
1st warmest
Overnight low
26°
11th coldest
Rainfall
75 mm
12.2 wet days
Daylight
12 h 12 min
5:49 AM – 6:03 PM
Cloud cover
61%
3rd clearest
Wind
8 km/h
7th windiest
Solar energy
6.01 kWh/m²
Travel score
2.7
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical April day in Cai Lậy reaches about 34°C in the afternoon and slips back to 26°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 36°C. Set against its neighbours, April runs about 1°C warmer than March and about 1°C warmer than May.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13426
23426
33426
43426
53426
63426
73426
83426
93426
103426
113426
123426
133426
143426
153426
163426
173426
183426
193426
203426
213426
223426
233426
243426
253426
263426
273426
283426
293426
303426

How April really feels in Cai Lậy

Once humidity and wind are folded in, April averages 30 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
30
30 feel dangerously hot (≥ 39°C)
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.

Cai Lậy weather by month

How April compares with the rest of the year at a glance. April is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°274.211.55.1
Feb32° / 23°111.711.74.8
Mar33° / 25°305.411.93.7
Apr34° / 26°7512.212.22.7
May33° / 26°17724.212.52.2
Jun32° / 26°21526.312.62.4
Jul31° / 25°23327.812.52.5
Aug31° / 25°25228.712.32.4
Sep31° / 25°28127.912.12.3
Oct31° / 25°29126.811.82.6
Nov31° / 24°14116.411.53.5
Dec31° / 23°679.211.44.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 23% of April, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25644
35644
45545
55545
65446
75446
85248
95248
105248
115248
125248
135248
145149
155149
165149
175050
185050
195050
204852
214753
224654
234555
244456
254357
264258
274159
284060
293862
303763

Chance of precipitation in April

Any precipitation

Cai Lậy gets around 75 mm of rain over 12.2 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 41% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
128
229
330
431
532
633
734
835
936
1036
1137
1238
1339
1439
1540
1641
1741
1842
1943
2044
2145
2245
2347
2448
2549
2650
2752
2853
2954
3056

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
147224
247125
337126
436928
536829
626731
726533
826434
916336
1016138
1115940
1215742
1315544
1415346
1515148
1614950
1714851
1814653
1914554
2014356
2114257
2214059
2303961
2403862
2503664
2603565
2703367
2803169
2903070
3002872

Wind in April

Winds average 8 km/h in April.

Across April, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over April. Sunrise moves from 5:58 AM to 5:42 AM, and sunset from 6:03 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:586:03
212.15:576:03
312.15:566:03
412.15:566:03
512.15:556:03
612.15:556:03
712.15:546:03
812.25:536:03
912.25:536:03
1012.25:526:03
1112.25:526:03
1212.25:516:03
1312.25:516:03
1412.25:506:03
1512.25:496:03
1612.25:496:03
1712.25:486:03
1812.25:486:03
1912.35:476:03
2012.35:476:03
2112.35:466:03
2212.35:466:03
2312.35:456:03
2412.35:456:03
2512.35:446:03
2612.35:446:03
2712.35:436:03
2812.35:436:03
2912.35:436:03
3012.45:426:04

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.01 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 6.05 kWh/m² in March across the year — April's 6.01 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Bright
236.0Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in April

Hazard calendar for Cai Lậy

In seasonPeak

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

Cai Lậy sits in the Pacific typhoon belt; the season peaks July–October.

Cai Lậy's rainy season runs May–November, when most of the year's rain falls.

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

Is April a good time to visit Cai Lậy?

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

2.7
Sightseeing
6th-best month of the year
5.4
Beach & pool
5th-best month of the year

April is a weaker month for outdoor sightseeing in Cai Lậy.

What to pack for Cai Lậy in April

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

In April, Cai Lậy sees daytime highs around 34°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Cai Lậy in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cai Lậy peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 20 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 23UV 13Nov 20UV 9
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct9Very high
Nov9Very high
Dec9Very high

Air quality in Cai Lậy 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 Cai Lậy is worst in January — around 72 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (August, 30 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1172 µg/m³Aug 1331 µg/m³
PM2.5 (µg/m³)Level
Jan72Unhealthy
Feb59Unhealthy
Mar53Poor
Apr53Poor
May47Poor
Jun38Poor
Jul34Moderate
Aug30Moderate
Sep40Poor
Oct56Unhealthy
Nov68Unhealthy
Dec70Unhealthy
Location & terrain

Where is Cai Lậy?

Cai Lậy sits at 10.4°N, 106.1°E, 3 m above sea level, in Vietnam. The nearest listed city is Vĩnh Long, 23 km away.

Topography around Cai Lậy

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

Within 3 km, the terrain around Cai Lậy has only modest variations in elevation — a maximum elevation change of 11 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 16 m; within 80 km, only modest variations in elevation — a maximum elevation change of 34 m.

The land around Cai Lậy is covered by trees (78%) within 3 km, trees (61%) and cropland (29%) within 16 km, and cropland (48%) and trees (35%) within 80 km.

3 km
11 m
16 km
16 m
80 km
34 m
treesgrasslandcroplandartificial surfaceswatermangroves
April weather nearby: Vĩnh Long 23 km · Mỹ Tho 27 km · Bến Tre 33 km · Tân An 36 km · Sa Dec 41 km · Quận Đức Thịnh 43 km · Bình Minh 49 km · Cao Lãnh 53 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 Cai Lậy (10.4°, 106.1167°, elevation 3 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). 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).