thị xã Quảng Trị weather in September

In September, thị xã Quảng Trị sees average daytime highs of 31°C and overnight lows near 26°C, with 314 mm of rain across 18.8 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 29°C by the end. The sky is clear or mostly clear about 13% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is thị xã Quảng Trị's 9th-clearest and 10th-windiest month. For the whole year in context, see thị xã Quảng Trị's year-round climate.

Daytime high
31°
5th warmest
Overnight low
26°
9th coldest
Rainfall
314 mm
18.8 wet days
Daylight
12 h 06 min
5:43 AM – 5:48 PM
Cloud cover
78%
9th clearest
Wind
10 km/h
10th windiest
Solar energy
4.66 kWh/m²
Travel score
3.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 32°C in the first days to 29°C by the end.

A typical September day in thị xã Quảng Trị reaches about 31°C in the afternoon and slips back to 26°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 34°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)
13227
23227
33227
43226
53226
63226
73126
83126
93126
103126
113126
123126
133126
143126
153126
163126
173026
183026
193026
203026
213026
223026
233025
243025
253025
263025
272925
282925
292925
302925

How September really feels in thị xã Quảng Trị

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.

thị xã Quảng Trị weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 19°16416.811.15.6
Feb24° / 20°9111.811.46.4
Mar26° / 22°829.411.96.7
Apr29° / 24°769.212.45.7
May31° / 26°11114.712.83.8
Jun33° / 27°628.8133.2
Jul33° / 28°8510.112.93.2
Aug33° / 27°11712.712.63.3
Sep31° / 26°31418.812.13.5
Oct28° / 24°48323.211.64.2
Nov26° / 23°4282211.24.7
Dec24° / 21°34622114.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11981
21981
31981
41981
51882
61882
71882
81882
91981
101981
111981
121981
132179
142179
152278
162476
172575
182575
192773
202872
212971
222971
232971
243070
253268
263268
273268
283169
293169
303268

Chance of precipitation in September

Any precipitation

thị xã Quảng Trị gets around 314 mm of rain over 18.8 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 63% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
152
253
353
454
555
656
756
857
958
1059
1160
1261
1362
1463
1563
1664
1765
1865
1966
2066
2167
2268
2369
2469
2570
2671
2772
2872
2973
3073

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
104357
204357
304258
404258
504258
604258
704159
804159
904159
1004060
1104060
1204060
1304060
1413960
1513960
1613960
1713960
1813960
1913861
2013861
2113861
2213861
2313960
2413960
2513960
2614059
2724058
2824157
2924256
3024256

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 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 24 minutes over September. Sunrise moves from 5:41 AM to 5:45 AM, and sunset from 6:01 PM to 5:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:416:01
212.35:416:00
312.35:415:59
412.35:415:58
512.35:425:58
612.35:425:57
712.25:425:56
812.25:425:55
912.25:425:54
1012.25:425:53
1112.25:425:53
1212.25:425:52
1312.15:425:51
1412.15:435:50
1512.15:435:49
1612.15:435:48
1712.15:435:48
1812.15:435:47
1912.05:435:46
2012.05:435:45
2112.05:435:44
2212.05:435:43
2312.05:445:42
2412.05:445:42
2511.95:445:41
2611.95:445:40
2711.95:445:39
2811.95:445:38
2911.95:445:37
3011.95:455:37

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 2.41 kWh/m² to a high of 5.92 kWh/m² in June across the year — September's 4.66 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.7Bright
154.6Bright
164.6Bright
174.6Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for thị xã Quảng Trị

In seasonPeak

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

thị xã Quảng Trị sits in the Pacific typhoon belt; the season peaks July–October.

thị xã Quảng Trị's monsoon runs September–December, 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 thị xã Quảng Trị?

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

3.5
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 thị xã Quảng Trị.

What to pack for thị xã Quảng Trị in September

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

In September, thị xã Quảng Trị sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

Sea temperature near thị xã Quảng Trị 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 25 km away) is warmest in August at about 29°C and coldest in February near 22°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb22Refreshing
Mar23Refreshing
Apr25Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov26Warm
Dec24Warm

UV index in thị xã Quảng Trị in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in thị xã Quảng Trị peaks around August 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highHighAug 13UV 13Dec 15UV 6
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar9Very high
Apr10Very high
May11Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec6High

Air quality in thị xã Quảng Trị 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 thị xã Quảng Trị is worst in March — around 76 µg/m³ PM2.5 (unhealthy), about 5.1× the cleanest month (July, 15 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateMar 2274 µg/m³Jul 1915 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb27Moderate
Mar76Unhealthy
Apr66Unhealthy
May26Moderate
Jun17Moderate
Jul15Moderate
Aug16Moderate
Sep19Moderate
Oct21Moderate
Nov18Moderate
Dec21Moderate
Location & terrain

Where is thị xã Quảng Trị?

thị xã Quảng Trị sits at 16.8°N, 107.2°E, 2 m above sea level, in Vietnam. The nearest listed city is Ðông Hà, 11 km away.

Quán HàuĐồng Hới

Topography around thị xã Quảng Trị

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of thị xã Quảng Trị.

Within 3 km, the terrain around thị xã Quảng Trị has only modest variations in elevation — a maximum elevation change of 23 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 272 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,059 m.

The land around thị xã Quảng Trị is covered by trees (39%) and cropland (27%) within 3 km, trees (49%) and cropland (23%) within 16 km, and trees (60%) and water (30%) within 80 km.

3 km
23 m
16 km
272 m
80 km
2,059 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ðông Hà 11 km · Cam Lộ 21 km · Phong Điền 27 km · Hương Trà 40 km · Hue 54 km · Hương Thủy 61 km · Quán Hàu 93 km · Đồng Hới 100 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 thị xã Quảng Trị (16.7508°, 107.1828°, elevation 2 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).