Mui Ne weather in September

In September, Mui Ne sees average daytime highs of 31°C and overnight lows near 25°C, with 134 mm of rain across 20.3 wet days and about 12.1 hours of daylight. It is the 6th-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 6% of the time in September, and the air most often feels oppressive.

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 Mui Ne's 12th-clearest and 8th-windiest month. For the whole year in context, see Mui Ne's year-round climate.

Daytime high
31°
6th warmest
Overnight low
25°
7th coldest
Rainfall
134 mm
20.3 wet days
Daylight
12 h 06 min
5:39 AM – 5:43 PM
Cloud cover
83%
12th clearest
Wind
12 km/h
8th windiest
Solar energy
5.43 kWh/m²
Travel score
3.2
out of 10

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 Mui Ne reaches about 31°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 29°C and 33°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83126
93126
103126
113126
123126
133126
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263125
273025
283025
293025
303025

How September really feels in Mui Ne

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.

Mui Ne weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°161.511.46.4
Feb30° / 23°30.711.66.5
Mar30° / 24°101.811.96.0
Apr31° / 26°346.412.24.9
May32° / 26°992012.53.2
Jun31° / 26°10519.912.63.1
Jul31° / 26°9620.512.63.3
Aug31° / 26°9019.512.43.3
Sep31° / 25°13420.312.13.2
Oct30° / 25°15620.611.83.7
Nov30° / 24°878.611.55.1
Dec29° / 23°645.611.45.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12080
22080
32080
42080
51981
61981
71882
81783
91783
101684
111684
121684
131486
141486
151486
161486
171486
181486
191486
201585
211684
221684
231684
241684
251684
261783
271783
281783
291783
301783

Chance of precipitation in September

Any precipitation

Mui Ne gets around 134 mm of rain over 20.3 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 69% and peaks near 78% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
160
260
360
460
560
661
761
862
963
1064
1166
1267
1368
1469
1570
1670
1771
1872
1972
2073
2174
2274
2375
2475
2576
2676
2776
2877
2977
3078

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the oppressive band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
16535
26634
36634
46634
56733
66733
76733
86634
96634
106535
116436
126337
136238
146139
156040
165941
175842
185743
195545
205446
215248
225149
235050
244951
254852
264852
274753
284753
294753
304753

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1412light breeze
1512light breeze
1612light breeze
1712calm
1812calm
1912calm
2011calm
2111calm
2211calm
2311calm
2411calm
2510calm
2610calm
2710calm
2810calm
2910calm
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 5:40 AM to 5:39 AM, and sunset from 5:53 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:405:53
212.25:405:52
312.25:405:52
412.25:405:51
512.25:405:50
612.25:405:50
712.25:405:49
812.15:405:48
912.15:405:48
1012.15:405:47
1112.15:405:46
1212.15:405:46
1312.15:405:45
1412.15:405:44
1512.15:395:44
1612.15:395:43
1712.05:395:42
1812.05:395:42
1912.05:395:41
2012.05:395:40
2112.05:395:40
2212.05:395:39
2312.05:395:38
2412.05:395:38
2512.05:395:37
2612.05:395:36
2711.95:395:36
2811.95:395:35
2911.95:395:34
3011.95:395:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.43 kWh/m².

For context, solar energy here swings from a low near 4.84 kWh/m² to a high of 6.75 kWh/m² in April across the year — September's 5.43 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.6Bright
75.6Bright
85.6Bright
95.5Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Mui Ne

In seasonPeak

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

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

Mui Ne's rainy season runs May–November, 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 Mui Ne?

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

3.2
Sightseeing
10th-best month of the year
4.7
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Mui Ne.

What to pack for Mui Ne in September

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

In September, Mui Ne sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Mui Ne 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 29°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
Apr28Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Warm
Sep28Tropical
Oct28Tropical
Nov27Warm
Dec26Warm

UV index in Mui Ne 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 Mui Ne peaks around May 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highMay 11UV 13Dec 15UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov10Extreme
Dec9Very high

Air quality in Mui Ne 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 Mui Ne is worst in October — around 32 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1432 µg/m³Feb 1123 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb23Moderate
Mar26Moderate
Apr28Moderate
May28Moderate
Jun29Moderate
Jul26Moderate
Aug26Moderate
Sep30Moderate
Oct32Moderate
Nov28Moderate
Dec26Moderate
Location & terrain

Where is Mui Ne?

Mui Ne sits at 10.9°N, 108.3°E, 6 m above sea level, in Vietnam. The nearest listed city is Phan Thiết, 20 km away.

Đinh VănHuyện Lâm Hà

Topography around Mui Ne

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

Within 3 km, the terrain around Mui Ne has only modest variations in elevation — a maximum elevation change of 119 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 290 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,844 m.

The land around Mui Ne is covered by water (60%) and grassland (20%) within 3 km, water (64%) and grassland (23%) within 16 km, and water (44%) and trees (40%) within 80 km.

3 km
119 m
16 km
290 m
80 km
1,844 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Phan Thiết 20 km · La Gi 64 km · Phú Quý 85 km · Bảo Lộc 86 km · Đưc Trọng 90 km · Ấp Bình Châu 91 km · Đinh Văn 95 km · Huyện Lâm Hà 98 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 Mui Ne (10.9331°, 108.2833°, elevation 6 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).