Hưng Mỹ weather in September

In September, Hưng Mỹ sees average daytime highs of 30°C and overnight lows near 25°C, with 323 mm of rain across 28.9 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Hưng Mỹ's 12th-clearest and 7th-windiest month. For the whole year in context, see Hưng Mỹ's year-round climate.

Daytime high
30°
11th warmest
Overnight low
25°
7th coldest
Rainfall
323 mm
28.9 wet days
Daylight
12 hours
5:53 AM – 5:56 PM
Cloud cover
89%
12th clearest
Wind
11 km/h
7th windiest
Solar energy
4.66 kWh/m²
Travel score
2.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Hưng Mỹ reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13026
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025

How September really feels in Hưng Mỹ

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

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

Hưng Mỹ weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°38711.55.1
Feb31° / 24°213.911.74.9
Mar32° / 25°578.411.94.0
Apr33° / 26°11716.812.23.0
May32° / 26°24526.512.42.4
Jun31° / 26°2742812.52.5
Jul30° / 26°29129.712.52.6
Aug30° / 26°27429.412.32.6
Sep30° / 25°32328.912.12.6
Oct30° / 25°40829.211.82.7
Nov30° / 25°2252311.63.3
Dec30° / 24°10813.711.54.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1892
2793
3793
4793
5793
6793
7793
8793
9793
10793
11793
12793
13793
14793
15793
16793
17793
18793
19793
20793
21892
22892
23892
24694
25694
26694
27694
28694
29595
30595

Chance of precipitation in September

Any precipitation

Hưng Mỹ gets around 323 mm of rain over 28.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 96% and peaks near 97% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
195
295
395
495
595
696
796
896
996
1096
1196
1296
1396
1496
1596
1696
1796
1896
1996
2096
2196
2296
2396
2496
2596
2697
2797
2897
2997
3097

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1793
2793
3793
4793
5892
6892
7892
8892
9892
10892
11892
12991
13991
14991
15991
16991
17991
18892
19892
20892
21793
22793
23793
24694
25694
26694
27595
28595
29595
30595

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 9 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 5:55 AM to 5:51 AM, and sunset from 6:05 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:556:05
212.25:556:04
312.25:546:04
412.15:546:03
512.15:546:03
612.15:546:02
712.15:546:01
812.15:546:01
912.15:546:00
1012.15:546:00
1112.15:545:59
1212.15:535:58
1312.15:535:58
1412.15:535:57
1512.15:535:56
1612.05:535:56
1712.05:535:55
1812.05:535:55
1912.05:535:54
2012.05:525:53
2112.05:525:53
2212.05:525:52
2312.05:525:51
2412.05:525:51
2512.05:525:50
2612.05:525:50
2712.05:525:49
2811.95:525:48
2911.95:525:48
3011.95:515:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.66 kWh/m².

For context, solar energy here swings from a low near 4.4 kWh/m² to a high of 6.21 kWh/m² in March across the year — September's 4.66 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for Hưng Mỹ

In seasonPeak

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

Hưng Mỹ sits in the Pacific typhoon belt; the season peaks July–October.

Hưng Mỹ'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 September a good time to visit Hưng Mỹ?

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

2.6
Sightseeing
8th-best month of the year
3.6
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Hưng Mỹ.

What to pack for Hưng Mỹ in September

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

In September, Hưng Mỹ sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Hưng Mỹ in September

The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 33 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 Hưng Mỹ in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Hưng Mỹ 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 Hưng Mỹ in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Hưng Mỹ 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 Hưng Mỹ?

Hưng Mỹ sits at 8.9°N, 105.0°E, 1 m above sea level, in Vietnam. The nearest listed city is Năm Căn, 16 km away.

Topography around Hưng Mỹ

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

Within 3 km, the terrain around Hưng Mỹ has only modest variations in elevation — a maximum elevation change of 4 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 15 m; within 80 km, significant variations in elevation — a maximum elevation change of 285 m.

The land around Hưng Mỹ is covered by trees (31%) and water (26%) within 3 km, water (45%) and trees (24%) within 16 km, and water (74%) within 80 km.

3 km
4 m
16 km
15 m
80 km
285 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Năm Căn 16 km · Cái Đôi Vàm 19 km · Trần Văn Thời 20 km · Tam Giang 25 km · Cà Mau 36 km · An Trạch 49 km · Gành Hào 50 km · Thới Bình 52 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 Hưng Mỹ (8.9°, 104.9833°, elevation 1 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).