Long Diền weather in April

In April, Long Diền sees average daytime highs of 32°C and overnight lows near 27°C, with 49 mm of rain across 8.9 wet days and about 12.2 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 38% of the time in April, and the air most often feels miserable.

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 Long Diền's 3rd-clearest and 5th-windiest month. For the whole year in context, see Long Diền's year-round climate.

Daytime high
32°
1st warmest
Overnight low
27°
11th coldest
Rainfall
49 mm
8.9 wet days
Daylight
12 h 12 min
5:44 AM – 5:58 PM
Cloud cover
53%
3rd clearest
Wind
12 km/h
5th windiest
Solar energy
6.5 kWh/m²
Travel score
4.2
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical April day in Long Diền reaches about 32°C in the afternoon and slips back to 27°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 33°C. Set against its neighbours, April runs about 1°C warmer than March and on par with May.

25°28°30°33°35°151015202530
Avg high (°C)Avg low (°C)
13126
23126
33226
43226
53226
63226
73226
83226
93226
103226
113226
123226
133227
143227
153227
163227
173227
183227
193227
203227
213227
223227
233227
243227
253227
263227
273227
283227
293227
303227

How April really feels in Long Diền

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
13 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.

Long Diền weather by month

How April compares with the rest of the year at a glance. April is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°222.811.56.2
Feb30° / 24°70.911.76.2
Mar31° / 25°152.711.95.4
Apr32° / 27°498.912.24.2
May32° / 27°1882412.52.8
Jun31° / 26°25127.412.62.6
Jul30° / 26°25328.812.62.7
Aug30° / 26°25628.712.32.7
Sep30° / 25°28928.112.12.7
Oct30° / 25°25426.411.83.1
Nov30° / 25°12614.911.54.4
Dec29° / 24°66911.45.3

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 19% of April, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16040
26040
35941
45941
55842
65842
75743
85743
95743
105842
115743
125743
135842
145842
155941
165941
176040
186040
195941
206040
215941
225941
235842
245743
255743
265545
275446
285248
295050
304852

Chance of precipitation in April

Any precipitation

Long Diền gets around 49 mm of rain over 8.9 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 30% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
118
218
319
420
520
621
722
823
923
1024
1125
1226
1327
1428
1529
1630
1731
1832
1933
2034
2135
2236
2337
2438
2540
2641
2742
2844
2945
3047

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 61% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
116633
216534
316336
416138
515940
615841
715643
815346
915148
1014950
1114752
1214554
1314257
1414059
1513861
1603664
1703466
1803268
1903070
2002971
2102773
2202674
2302476
2402377
2502278
2602080
2701981
2801882
2901783
3001585

Wind in April

Winds average 12 km/h in April.

Across April, daily wind ranges from about 11 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 5:53 AM to 5:38 AM, and sunset from 5:58 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:535:58
212.15:535:58
312.15:525:58
412.15:515:58
512.15:515:58
612.15:505:58
712.15:505:58
812.25:495:58
912.25:485:58
1012.25:485:58
1112.25:475:58
1212.25:475:58
1312.25:465:58
1412.25:455:58
1512.25:455:58
1612.25:445:58
1712.25:445:58
1812.35:435:58
1912.35:435:58
2012.35:425:58
2112.35:425:58
2212.35:415:59
2312.35:415:59
2412.35:405:59
2512.35:405:59
2612.35:395:59
2712.35:395:59
2812.35:395:59
2912.35:385:59
3012.45:385:59

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.5 kWh/m².

For context, solar energy here swings from a low near 4.67 kWh/m² to a high of 6.52 kWh/m² in March across the year — April's 6.5 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.3Intense
286.3Intense
296.3Intense
306.2Intense
Planning a trip in April

Hazard calendar for Long Diền

In seasonPeak

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

Long Diền sits in the Pacific typhoon belt; the season peaks July–October.

Long Diền's rainy season runs May–October, 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 Long Diền?

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

4.2
Sightseeing
6th-best month of the year
6.6
Beach & pool
5th-best month of the year

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

What to pack for Long Diền in April

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

In April, Long Diền sees daytime highs around 32°C and nights near 27°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

Sea temperature near Long Diền in April

The nearest coast averages about 29°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 16 km away) is warmest in May at about 30°C and coldest in January near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Long Diền 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 Long Diền peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 23UV 13Nov 21UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct10Extreme
Nov9Very high
Dec9Very high

Air quality in Long Diền 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 Long Diền is worst in October — around 34 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (March, 21 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1434 µg/m³Mar 1921 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb21Moderate
Mar21Moderate
Apr21Moderate
May25Moderate
Jun30Moderate
Jul29Moderate
Aug29Moderate
Sep33Moderate
Oct34Moderate
Nov31Moderate
Dec34Moderate
Location & terrain

Where is Long Diền?

Long Diền sits at 10.5°N, 107.2°E, 17 m above sea level, in Vietnam. The nearest listed city is Thành Phố Bà Rịa, 5.0 km away.

Topography around Long Diền

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

Within 3 km, the terrain around Long Diền has only modest variations in elevation — a maximum elevation change of 66 m around an average of 9 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 515 m; within 80 km, large variations in elevation — a maximum elevation change of 918 m.

The land around Long Diền is covered by cropland (34%) and artificial surfaces (25%) within 3 km, water (29%) and trees (28%) within 16 km, and water (40%) and trees (33%) within 80 km.

3 km
66 m
16 km
515 m
80 km
918 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
April weather nearby: Thành Phố Bà Rịa 5.0 km · Thị Trấn Đất Đỏ 6.0 km · Ấp Phước Tĩnh 10 km · Xã Long Hải 11 km · Thị Trấn Ngải Giao 18 km · Vũng Tàu 21 km · Thị Trấn Phước Bửu 21 km · Xóm Mỹ Xuân 22 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 Long Diền (10.4833°, 107.2167°, elevation 17 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).