Kon Tum weather in September

In September, Kon Tum sees average daytime highs of 27°C and overnight lows near 21°C, with 267 mm of rain across 26.9 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 2% of the time in September, and the air most often feels oppressive.

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 Kon Tum's 11th-clearest and 11th-windiest month. For the whole year in context, see Kon Tum's year-round climate.

Daytime high
27°
8th warmest
Overnight low
21°
7th coldest
Rainfall
267 mm
26.9 wet days
Daylight
12 h 06 min
5:40 AM – 5:45 PM
Cloud cover
87%
11th clearest
Wind
5 km/h
11th windiest
Solar energy
4.2 kWh/m²
Travel score
3.7
out of 10

Kon Tum is city of Vietnam; capital of Kon Tum Province.

Density
475/km²
people per km²

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 27°C through the month.

A typical September day in Kon Tum reaches about 27°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12721
22721
32721
42721
52721
62721
72721
82721
92721
102721
112721
122721
132721
142721
152721
162721
172721
182721
192721
202821
212821
222821
232821
242821
252821
262821
272820
282820
292820
302820

How September really feels in Kon Tum

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kon Tum weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 17°60.711.27.8
Feb30° / 17°61.111.56.4
Mar31° / 19°355.311.95.0
Apr31° / 21°8412.312.34.1
May30° / 21°17222.812.73.4
Jun28° / 21°18326.612.83.5
Jul27° / 21°22828.512.83.6
Aug27° / 21°2472912.53.5
Sep27° / 21°26726.912.13.7
Oct28° / 20°16916.611.75.2
Nov27° / 19°786.811.36.9
Dec27° / 18°273.311.27.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 8% of September, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1892
2793
3793
4793
5793
6793
7793
8793
9793
10793
11793
12793
13892
14892
15991
16991
17991
18991
191189
201189
211288
221288
231387
241486
251585
261585
271783
281783
291882
302080

Chance of precipitation in September

Any precipitation

Kon Tum gets around 267 mm of rain over 26.9 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 89% and peaks near 93% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
193
293
393
492
592
692
792
892
992
1092
1192
1292
1391
1491
1591
1690
1790
1890
1989
2089
2188
2287
2387
2486
2585
2684
2783
2882
2981
3080

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
102278
202278
302377
402476
502476
602575
702575
802674
902674
1002674
1102674
1202773
1302773
1402773
1502872
1602971
1702971
1803070
1903169
2003268
2103367
2203466
2303664
2403763
2503961
2604060
2704258
2814455
2914554
3014653

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 5:39 AM to 5:41 AM, and sunset from 5:56 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:395:56
212.35:395:55
312.35:395:55
412.25:395:54
512.25:395:53
612.25:405:52
712.25:405:52
812.25:405:51
912.25:405:50
1012.25:405:49
1112.15:405:49
1212.15:405:48
1312.15:405:47
1412.15:405:46
1512.15:405:45
1612.15:405:45
1712.15:405:44
1812.15:405:43
1912.05:405:42
2012.05:405:42
2112.05:405:41
2212.05:405:40
2312.05:405:39
2412.05:405:38
2512.05:405:38
2611.95:405:37
2711.95:405:36
2811.95:415:35
2911.95:415:35
3011.95:415:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.2 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.2 kWh/m² to a high of 6.05 kWh/m² in April across the year — September's 4.2 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Kon Tum

In seasonPeak

In September, Kon Tum sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Kon Tum's monsoon runs May–October, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Kon Tum?

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

3.7
Sightseeing
8th-best month of the year
3.9
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Kon Tum.

What to pack for Kon Tum in September

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

In September, Kon Tum sees daytime highs around 27°C and nights near 21°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

UV index in Kon Tum 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 Kon Tum peaks around August 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 14UV 14Dec 12UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul14Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Kon Tum 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 Kon Tum is worst in March — around 55 µg/m³ PM2.5 (unhealthy), about 5.1× the cleanest month (August, 11 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodModerateGoodMar 1952 µg/m³Aug 1311 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb21Moderate
Mar55Unhealthy
Apr37Poor
May18Moderate
Jun13Moderate
Jul12Good
Aug11Good
Sep12Moderate
Oct14Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Kon Tum?

Kon Tum sits at 14.4°N, 108.0°E, 543 m above sea level, in Vietnam. The nearest listed city is Pleiku, 41 km away.

Đức PhổA Yun PaQuảng NgãiBanlungAn NhơnEa Drăng

Topography around Kon Tum

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

Within 3 km, the terrain around Kon Tum has only modest variations in elevation — a maximum elevation change of 69 m around an average of 533 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 794 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,496 m.

The land around Kon Tum is covered by artificial surfaces (40%) and cropland (32%) within 3 km, trees (39%) and grassland (36%) within 16 km, and trees (73%) within 80 km.

3 km
69 m
16 km
794 m
80 km
2,496 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Pleiku 41 km · An Khê 83 km · Đức Phổ 114 km · A Yun Pa 116 km · Quảng Ngãi 120 km · Banlung 130 km · An Nhơn 130 km · Ea Drăng 130 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 Kon Tum (14.3545°, 108.0076°, elevation 543 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. 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).