Năm Căn weather in May

In May, Năm Căn sees average daytime highs of 31°C and overnight lows near 27°C, with 211 mm of rain across 25 wet days and about 12.4 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 9% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is Năm Căn's 7th-clearest and 11th-windiest month. For the whole year in context, see Năm Căn's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
27°
12th coldest
Rainfall
211 mm
25 wet days
Daylight
12 h 24 min
5:44 AM – 6:08 PM
Cloud cover
79%
7th clearest
Wind
12 km/h
11th windiest
Solar energy
5.48 kWh/m²
Travel score
3.0
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical May day in Năm Căn reaches about 31°C in the afternoon and slips back to 27°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
13127
23127
33127
43127
53127
63127
73127
83127
93127
103127
113127
123127
133127
143127
153127
163127
173127
183127
193027
203027
213027
223027
233027
243027
253027
263027
273027
283027
293027
303027
313027

How May really feels in Năm Căn

Once humidity and wind are folded in, May averages 31 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
31
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.

Năm Căn weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°345.811.56.1
Feb29° / 25°162.911.76.2
Mar30° / 26°416.211.95.3
Apr31° / 27°8813.312.24.2
May31° / 27°2112512.43.0
Jun30° / 27°24826.812.52.9
Jul29° / 26°26628.712.53.0
Aug29° / 26°25428.112.33.0
Sep29° / 26°29427.612.13.0
Oct29° / 26°35829.111.83.0
Nov29° / 25°22222.711.63.7
Dec28° / 25°11012.911.55.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 79%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23763
33763
43466
53466
63268
72971
82971
92773
102674
112377
122179
131981
141981
151783
161783
171585
181585
191486
201486
211387
221387
231387
241387
251387
261387
271486
281486
291486
301486
311387

Chance of precipitation in May

Any precipitation

Năm Căn gets around 211 mm of rain over 25 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 81% and peaks near 91% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
163
264
365
466
568
669
770
872
973
1075
1176
1278
1379
1481
1582
1684
1785
1886
1987
2088
2188
2289
2389
2490
2590
2691
2791
2891
2991
3091
3191

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1991
2892
3892
4793
5793
6694
7694
8595
9595
10496
11496
12397
13397
14298
15298
16298
17199
18199
19199
20199
21199
22199
23199
240100
250100
260100
270100
280100
29199
30199
31199

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 18 min at the start of May to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:48 AM to 5:43 AM, and sunset from 6:06 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:486:06
212.35:486:06
312.35:476:07
412.35:476:07
512.35:476:07
612.35:476:07
712.35:466:07
812.45:466:07
912.45:466:07
1012.45:456:07
1112.45:456:07
1212.45:456:08
1312.45:456:08
1412.45:456:08
1512.45:446:08
1612.45:446:08
1712.45:446:08
1812.45:446:09
1912.45:446:09
2012.45:446:09
2112.45:446:09
2212.45:446:09
2312.45:446:10
2412.45:436:10
2512.45:436:10
2612.45:436:10
2712.55:436:11
2812.55:436:11
2912.55:436:11
3012.55:436:11
3112.55:436:11

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.48 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.33 kWh/m² in March across the year — May's 5.48 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in May

Hazard calendar for Năm Căn

In seasonPeak

In May, Năm Căn sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Năm Căn sits in the Pacific typhoon belt; the season peaks July–October.

Năm Căn'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 May a good time to visit Năm Căn?

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

3.0
Sightseeing
7th-best month of the year
4.3
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Năm Căn.

What to pack for Năm Căn in May

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

In May, Năm Căn sees daytime highs around 31°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Năm Căn in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 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
Feb27Warm
Mar28Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Năm Căn in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Năm Căn peaks around March 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 20UV 13Dec 16UV 10
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov11Extreme
Dec10Very high

Air quality in Năm Căn 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 Năm Căn is worst in December — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (May, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateDec 1922 µg/m³May 2012 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb17Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun13Moderate
Jul15Moderate
Aug13Moderate
Sep14Moderate
Oct15Moderate
Nov18Moderate
Dec22Moderate
Location & terrain

Where is Năm Căn?

Năm Căn sits at 8.8°N, 105.0°E, 5 m above sea level, in Vietnam. The nearest listed city is Hưng Mỹ, 16 km away.

Topography around Năm Căn

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

Within 3 km, the terrain around Năm Căn has only modest variations in elevation — a maximum elevation change of 15 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 19 m; within 80 km, significant variations in elevation — a maximum elevation change of 300 m.

The land around Năm Căn is covered by water (37%) and mangroves (24%) within 3 km, mangroves (45%) and water (33%) within 16 km, and water (77%) within 80 km.

3 km
15 m
16 km
19 m
80 km
300 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
May weather nearby: Hưng Mỹ 16 km · Tam Giang 21 km · Cái Đôi Vàm 23 km · Trần Văn Thời 35 km · Cà Mau 50 km · Gành Hào 56 km · An Trạch 56 km · Thới Bình 67 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 Năm Căn (8.759°, 104.9929°, 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).