Tịnh Biên weather in September

In September, Tịnh Biên sees average daytime highs of 31°C and overnight lows near 25°C, with 294 mm of rain across 28.4 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 2nd-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 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 Tịnh Biên's 12th-clearest and 4th-windiest month. For the whole year in context, see Tịnh Biên's year-round climate.

Daytime high
31°
8th warmest
Overnight low
25°
7th coldest
Rainfall
294 mm
28.4 wet days
Daylight
12 h 06 min
5:53 AM – 5:56 PM
Cloud cover
90%
12th clearest
Wind
10 km/h
4th windiest
Solar energy
4.51 kWh/m²
Travel score
2.4
out of 10

Tịnh Biên is Capital of Tịnh Biên District.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Tịnh Biên reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°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)
13125
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263125
273125
283125
293125
303125

How September really feels in Tịnh Biên

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.

Tịnh Biên weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°244.711.45.1
Feb32° / 23°152.411.74.7
Mar34° / 25°487.511.93.3
Apr34° / 26°11015.412.22.4
May33° / 26°20725.712.52.1
Jun32° / 26°23327.112.62.4
Jul31° / 25°24728.312.62.5
Aug31° / 25°24528.812.32.4
Sep31° / 25°29428.412.12.4
Oct31° / 24°32426.911.82.6
Nov31° / 24°13615.911.53.6
Dec31° / 23°548.311.44.7

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 4% of September, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1496
2397
3397
4397
5397
6397
7397
8397
9397
10397
11397
12397
13496
14496
15595
16595
17595
18595
19595
20694
21694
22694
23694
24694
25694
26694
27694
28694
29694
30694

Chance of precipitation in September

Any precipitation

Tịnh Biên gets around 294 mm of rain over 28.4 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 95% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
195
295
395
495
595
695
795
895
995
1095
1195
1295
1395
1495
1595
1694
1794
1894
1994
2094
2194
2294
2394
2494
2594
2694
2794
2894
2994
3094

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 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11486
21486
31585
41585
51585
61585
71585
81585
91585
101585
111585
121585
131585
141486
151486
161387
171387
181288
191288
201288
211189
221189
231189
241189
251189
261189
271189
281288
291288
301288

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 8 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
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
229calm
239calm
249calm
259calm
269calm
278calm
288calm
298calm
308calm

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 5:54 AM to 5:52 AM, and sunset from 6:06 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:546:06
212.25:546:06
312.25:546:05
412.25:546:04
512.25:546:04
612.25:546:03
712.15:536:02
812.15:536:02
912.15:536:01
1012.15:536:00
1112.15:536:00
1212.15:535:59
1312.15:535:58
1412.15:535:58
1512.15:535:57
1612.15:535:56
1712.05:535:56
1812.05:535:55
1912.05:535:54
2012.05:535:54
2112.05:525:53
2212.05:525:52
2312.05:525:52
2412.05:525:51
2512.05:525:50
2612.05:525:50
2711.95:525:49
2811.95:525:48
2911.95:525:48
3011.95:525:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.51 kWh/m².

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 6.11 kWh/m² in April across the year — September's 4.51 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
Planning a trip in September

Hazard calendar for Tịnh Biên

In seasonPeak

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

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

Tịnh Biên'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 September a good time to visit Tịnh Biên?

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

2.4
Sightseeing
8th-best month of the year
3.5
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Tịnh Biên.

What to pack for Tịnh Biên in September

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

In September, Tịnh Biên sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Tịnh Biên 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 53 km away) is warmest in May at about 31°C and coldest in January near 27°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Tịnh Biên 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 Tịnh Biên peaks around August 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 highAug 19UV 13Dec 11UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct9Very high
Nov9Very high
Dec9Very high

Air quality in Tịnh Biên 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 Tịnh Biên is worst in January — around 55 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1754 µg/m³Aug 1422 µg/m³
PM2.5 (µg/m³)Level
Jan55Poor
Feb49Poor
Mar44Poor
Apr40Poor
May33Moderate
Jun25Moderate
Jul24Moderate
Aug21Moderate
Sep27Moderate
Oct39Poor
Nov47Poor
Dec48Poor
Location & terrain

Where is Tịnh Biên?

Tịnh Biên sits at 10.6°N, 104.9°E, 1 m above sea level, in Vietnam. The nearest listed city is Châu Đốc, 23 km away.

Topography around Tịnh Biên

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

Within 3 km, the terrain around Tịnh Biên has significant variations in elevation — a maximum elevation change of 262 m around an average of 12 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 692 m; within 80 km, large variations in elevation — a maximum elevation change of 691 m.

The land around Tịnh Biên is covered by cropland (65%) and trees (22%) within 3 km, cropland (67%) and trees (25%) within 16 km, and cropland (67%) within 80 km.

3 km
262 m
16 km
692 m
80 km
691 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Châu Đốc 23 km · Châu Phong 25 km · Cô Tô 29 km · Tân Châu 40 km · Ấp Long Thạnh 41 km · Óc Eo 46 km · Phumĭ Véal Srê 46 km · Takeo 47 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 Tịnh Biên (10.5959°, 104.9367°, 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).