Thị Trấn Ngải Giao weather in September

In September, Thị Trấn Ngải Giao sees average daytime highs of 30°C and overnight lows near 24°C, with 365 mm of rain across 29 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 1st-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 Thị Trấn Ngải Giao's 12th-clearest and 6th-windiest month. For the whole year in context, see Thị Trấn Ngải Giao's year-round climate.

Daytime high
30°
9th warmest
Overnight low
24°
7th coldest
Rainfall
365 mm
29 wet days
Daylight
12 h 06 min
5:44 AM – 5:47 PM
Cloud cover
89%
12th clearest
Wind
8 km/h
6th windiest
Solar energy
4.71 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 Thị Trấn Ngải Giao reaches about 30°C in the afternoon and slips back to 24°C overnight — a 6°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)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283024
293024
303024

How September really feels in Thị Trấn Ngải Giao

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 Trấn Ngải Giao weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°284.411.45.4
Feb31° / 23°112.111.65.1
Mar33° / 24°275.111.94.2
Apr33° / 25°7712.712.23.2
May32° / 25°25026.112.52.4
Jun31° / 25°32428.412.62.5
Jul30° / 25°35229.912.62.6
Aug30° / 25°35029.612.42.6
Sep30° / 24°3652912.12.6
Oct30° / 24°30527.911.82.8
Nov30° / 24°15617.911.53.9
Dec30° / 23°841111.44.8

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 5% of September, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1892
2892
3892
4793
5694
6694
7694
8694
9694
10694
11694
12694
13595
14595
15595
16595
17595
18595
19595
20595
21694
22694
23694
24694
25595
26694
27793
28793
29793
30793

Chance of precipitation in September

Any precipitation

Thị Trấn Ngải Giao gets around 365 mm of rain over 29 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 96% and peaks near 97% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
196
296
396
496
596
696
796
896
997
1097
1197
1297
1397
1497
1596
1696
1796
1896
1996
2096
2196
2296
2397
2497
2597
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 81% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11783
21882
31882
41981
51981
62080
72080
82080
92179
102179
112179
122179
132179
142179
152179
162179
172080
182080
191981
201981
211882
221882
231882
241783
251783
261783
271882
281882
291882
301882

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
306calm

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 5:45 AM to 5:43 AM, and sunset from 5:57 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:455:57
212.25:445:56
312.25:445:56
412.25:445:55
512.25:445:54
612.25:445:54
712.15:445:53
812.15:445:52
912.15:445:52
1012.15:445:51
1112.15:445:50
1212.15:445:50
1312.15:445:49
1412.15:445:48
1512.15:445:48
1612.15:445:47
1712.05:445:46
1812.05:435:46
1912.05:435:45
2012.05:435:44
2112.05:435:44
2212.05:435:43
2312.05:435:42
2412.05:435:42
2512.05:435:41
2612.05:435:40
2711.95:435:40
2811.95:435:39
2911.95:435:38
3011.95:435:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.71 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.32 kWh/m² in March across the year — September's 4.71 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for Thị Trấn Ngải Giao

In seasonPeak

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

Thị Trấn Ngải Giao sits in the Pacific typhoon belt; the season peaks July–October.

Thị Trấn Ngải Giao'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 Thị Trấn Ngải Giao?

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
12th-best month of the year

September is a weaker month for outdoor sightseeing in Thị Trấn Ngải Giao.

What to pack for Thị Trấn Ngải Giao in September

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

In September, Thị Trấn Ngải Giao sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Thị Trấn Ngải Giao 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
Feb26Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Thị Trấn Ngải Giao 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 Trấn Ngải Giao peaks around March 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 16 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 highMar 22UV 13Nov 16UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct9Very high
Nov9Very high
Dec9Very high

Air quality in Thị Trấn Ngải Giao 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 Trấn Ngải Giao is worst in October — around 34 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (March, 21 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1434 µg/m³Mar 1921 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb21Moderate
Mar21Moderate
Apr21Moderate
May25Moderate
Jun30Moderate
Jul29Moderate
Aug29Moderate
Sep33Moderate
Oct34Moderate
Nov31Moderate
Dec34Moderate
Location & terrain

Where is Thị Trấn Ngải Giao?

Thị Trấn Ngải Giao sits at 10.6°N, 107.2°E, 119 m above sea level, in Vietnam. The nearest listed city is Thị Trấn Đất Đỏ, 18 km away.

Topography around Thị Trấn Ngải Giao

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Thị Trấn Ngải Giao.

Within 3 km, the terrain around Thị Trấn Ngải Giao has only modest variations in elevation — a maximum elevation change of 85 m around an average of 114 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 509 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,363 m.

The land around Thị Trấn Ngải Giao is covered by trees (62%) within 3 km, trees (68%) within 16 km, and trees (40%) and water (34%) within 80 km.

3 km
85 m
16 km
509 m
80 km
1,363 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Thị Trấn Đất Đỏ 18 km · Long Diền 18 km · Thành Phố Bà Rịa 19 km · Phú Mỹ 20 km · Xóm Mỹ Xuân 20 km · Thị Trấn Phước Bửu 21 km · Ấp Phước Tĩnh 28 km · Xã Long Hải 29 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 Trấn Ngải Giao (10.6471°, 107.2458°, elevation 119 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).