Vinh weather in September

In September, Vinh sees average daytime highs of 30°C and overnight lows near 26°C, with 330 mm of rain across 19.2 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 30°C by the end. The sky is clear or mostly clear about 20% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Vinh's 7th-clearest and 11th-windiest month. For the whole year in context, see Vinh's year-round climate.

Daytime high
30°
5th warmest
Overnight low
26°
8th coldest
Rainfall
330 mm
19.2 wet days
Daylight
12 h 06 min
5:48 AM – 5:55 PM
Cloud cover
73%
7th clearest
Wind
9 km/h
11th windiest
Solar energy
4.42 kWh/m²
Travel score
3.6
out of 10

Vinh is provincial city in Vietnam.

Density
4,753/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 30°C by the end.

A typical September day in Vinh reaches about 30°C in the afternoon and slips back to 26°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13127
23127
33127
43127
53127
63127
73127
83127
93127
103127
113126
123126
133126
143126
153026
163026
173026
183026
193026
203026
213026
223026
233026
243026
253026
263026
273026
283025
293025
302925

How September really feels in Vinh

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
4 feel dangerously hot (≥ 39°C)
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.

Vinh weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 17°306116.6
Feb22° / 18°20511.47.0
Mar24° / 20°376.411.97.2
Apr28° / 23°416.712.46.1
May32° / 26°9911.312.93.9
Jun34° / 28°1059.613.12.8
Jul34° / 28°14911.8132.9
Aug32° / 28°22217.812.63.0
Sep30° / 26°33019.212.13.6
Oct28° / 24°32918.811.64.9
Nov25° / 21°10112.511.16.3
Dec22° / 18°478.210.96.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12179
22179
32278
42278
52377
62377
72377
82575
92575
102674
112872
122872
132971
143070
153169
163169
173367
183466
193466
203664
213664
223862
233862
243862
254060
264060
274060
284060
294060
304159

Chance of precipitation in September

Any precipitation

Vinh gets around 330 mm of rain over 19.2 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 65% and peaks near 66% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
162
262
362
462
562
662
763
863
963
1064
1164
1265
1365
1466
1566
1666
1766
1866
1966
2066
2166
2266
2366
2466
2566
2666
2765
2865
2965
3065

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 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100397
200496
300595
400595
501693
601792
701891
801990
901990
10011089
11011188
12021286
13021385
14021484
15021583
16021682
17021781
18021880
19021979
20022078
21022177
22122275
23122374
24122473
25132571
26132670
27132769
28142867
29152866
30152965

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 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 30 minutes over September. Sunrise moves from 5:46 AM to 5:51 AM, and sunset from 6:08 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:466:08
212.45:466:07
312.35:466:06
412.35:466:06
512.35:476:05
612.35:476:04
712.35:476:03
812.25:476:02
912.25:476:01
1012.25:476:00
1112.25:485:59
1212.25:485:58
1312.25:485:57
1412.15:485:57
1512.15:485:56
1612.15:485:55
1712.15:495:54
1812.15:495:53
1912.05:495:52
2012.05:495:51
2112.05:495:50
2212.05:495:49
2312.05:505:48
2412.05:505:47
2511.95:505:46
2611.95:505:46
2711.95:505:45
2811.95:515:44
2911.95:515:43
3011.95:515:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.42 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 5.77 kWh/m² in June across the year — September's 4.42 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Vinh

In seasonPeak

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

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

Vinh's monsoon runs July–October, when most of the year's rain falls.

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

Is September a good time to visit Vinh?

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

3.6
Sightseeing
9th-best month of the year
5.1
Beach & pool
8th-best month of the year

September is a weaker month for outdoor sightseeing in Vinh.

What to pack for Vinh in September

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

In September, Vinh sees daytime highs around 30°C and nights near 26°C. Pack light clothes and rain gear. About 19 days see rain.

light clothesrain gear

Sea temperature near Vinh in September

The nearest coast averages about 30°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 20 km away) is warmest in August at about 30°C and coldest in February near 21°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar22Refreshing
Apr24Warm
May28Warm
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct28Warm
Nov26Warm
Dec23Refreshing

UV index in Vinh in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vinh peaks around July 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJul 17UV 12Dec 14UV 6
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar10Very high
Apr9Very high
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov7High
Dec6High

Air quality in Vinh 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 Vinh is worst in April — around 62 µg/m³ PM2.5 (unhealthy), about 3.5× the cleanest month (July, 18 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorApr 1161 µg/m³Jul 1618 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb52Poor
Mar57Unhealthy
Apr62Unhealthy
May35Poor
Jun20Moderate
Jul18Moderate
Aug21Moderate
Sep30Moderate
Oct41Poor
Nov47Poor
Dec52Poor
Location & terrain

Where is Vinh?

Vinh sits at 18.7°N, 105.7°E, 12 m above sea level, in Vietnam. The nearest listed city is Bến Thủy, 3.0 km away.

Topography around Vinh

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

Within 3 km, the terrain around Vinh has only modest variations in elevation — a maximum elevation change of 96 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 586 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,269 m.

The land around Vinh is covered by artificial surfaces (64%) within 3 km, cropland (36%) and trees (25%) within 16 km, and trees (54%) and water (29%) within 80 km.

3 km
96 m
16 km
586 m
80 km
2,269 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Bến Thủy 3.0 km · Yên Vinh 3.0 km · Nghi Xuân 7.0 km · Hồng Lĩnh 16 km · Nghèn 26 km · Diễn Thành 35 km · Hà Tĩnh 43 km · Kim Liên 46 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 Vinh (18.6734°, 105.6923°, elevation 12 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).