La Gi weather in September

In September, La Gi sees average daytime highs of 30°C and overnight lows near 25°C, with 245 mm of rain across 26.8 wet days and about 12.1 hours of daylight. It is the 5th-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 3% 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 La Gi's 12th-clearest and 8th-windiest month. For the whole year in context, see La Gi's year-round climate.

Daytime high
30°
5th warmest
Overnight low
25°
7th coldest
Rainfall
245 mm
26.8 wet days
Daylight
12 h 06 min
5:41 AM – 5:45 PM
Cloud cover
85%
12th clearest
Wind
10 km/h
8th windiest
Solar energy
5 kWh/m²
Travel score
2.9
out of 10

La Gi is town in South Central Coast, Vietnam.

Density
879/km²
people per km²
Founded
1956

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 30°C through the month.

A typical September day in La Gi 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 31°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)
13025
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 La Gi

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.

La Gi 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
Jan29° / 23°192.211.46.6
Feb29° / 23°50.811.66.5
Mar30° / 25°142.611.95.8
Apr31° / 26°488.512.24.5
May31° / 26°18323.812.53.0
Jun30° / 25°23526.412.62.8
Jul30° / 25°23627.812.62.9
Aug30° / 25°22727.712.42.9
Sep30° / 25°24526.812.12.9
Oct30° / 25°22524.811.83.4
Nov29° / 24°11012.511.54.9
Dec29° / 24°657.511.45.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of September, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11387
21387
31387
41387
51387
61387
71288
81288
91288
101288
111288
121189
131189
141189
151189
161189
171189
181189
191288
201288
211288
221387
231387
241387
251387
261387
271387
281387
291486
301486

Chance of precipitation in September

Any precipitation

La Gi gets around 245 mm of rain over 26.8 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 90% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
189
289
389
489
589
689
789
889
989
1089
1189
1289
1389
1489
1589
1689
1789
1889
1990
2090
2190
2290
2390
2490
2591
2691
2791
2891
2991
3091

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 76% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11981
22080
32179
42278
52377
62377
72476
82476
92575
102575
112575
122674
132674
142674
152674
162674
172674
182674
192575
202575
212476
222476
232476
242476
252476
262476
272476
282476
292575
302575

Wind in September

Winds average 10 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
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
259calm
269calm
279calm
289calm
299calm
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 5:42 AM to 5:41 AM, and sunset from 5:55 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:425:55
212.25:425:54
312.25:425:54
412.25:425:53
512.25:425:52
612.25:425:52
712.15:425:51
812.15:425:50
912.15:425:50
1012.15:425:49
1112.15:425:48
1212.15:425:48
1312.15:425:47
1412.15:425:46
1512.15:425:46
1612.15:415:45
1712.05:415:44
1812.05:415:44
1912.05:415:43
2012.05:415:42
2112.05:415:42
2212.05:415:41
2312.05:415:40
2412.05:415:40
2512.05:415:39
2612.05:415:38
2711.95:415:38
2811.95:415:37
2911.95:415:36
3011.95:415:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5 kWh/m².

For context, solar energy here swings from a low near 4.63 kWh/m² to a high of 6.53 kWh/m² in March across the year — September's 5 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.1Bright
95.1Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for La Gi

In seasonPeak

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

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

La Gi'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 La Gi?

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

2.9
Sightseeing
9th-best month of the year
4.0
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in La Gi.

What to pack for La Gi in September

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

In September, La Gi sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near La Gi in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in May at about 30°C and coldest in January near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov28Warm
Dec26Warm

UV index in La Gi 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 La Gi peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 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 23UV 13Dec 10UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in La Gi 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 La Gi is worst in September — around 26 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1826 µg/m³Apr 1017 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb18Moderate
Mar17Moderate
Apr17Moderate
May19Moderate
Jun24Moderate
Jul25Moderate
Aug24Moderate
Sep26Moderate
Oct25Moderate
Nov21Moderate
Dec22Moderate
Location & terrain

Where is La Gi?

La Gi sits at 10.7°N, 107.8°E, 8 m above sea level, in Vietnam. The nearest listed city is Ấp Bình Châu, 27 km away.

Topography around La Gi

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

Within 3 km, the terrain around La Gi has only modest variations in elevation — a maximum elevation change of 27 m around an average of 5 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 568 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,608 m.

The land around La Gi is covered by water (38%) within 3 km, water (52%) and trees (26%) within 16 km, and trees (44%) and water (38%) within 80 km.

3 km
27 m
16 km
568 m
80 km
1,608 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ấp Bình Châu 27 km · Thị Trấn Phước Bửu 43 km · Phan Thiết 47 km · Thị Trấn Ngải Giao 58 km · Thị Trấn Đất Đỏ 58 km · Mui Ne 64 km · Long Diền 64 km · Long Khánh 64 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 La Gi (10.6599°, 107.7721°, elevation 8 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).