Tam Kỳ weather in September

In September, Tam Kỳ sees average daytime highs of 30°C and overnight lows near 25°C, with 310 mm of rain across 24.3 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 29°C by the end. The sky is clear or mostly clear about 11% of the time in September, and the air most often feels miserable.

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 Tam Kỳ's 11th-clearest and 9th-windiest month. For the whole year in context, see Tam Kỳ's year-round climate.

Daytime high
30°
5th warmest
Overnight low
25°
8th coldest
Rainfall
310 mm
24.3 wet days
Daylight
12 h 06 min
5:38 AM – 5:43 PM
Cloud cover
79%
11th clearest
Wind
7 km/h
9th windiest
Solar energy
4.96 kWh/m²
Travel score
3.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 29°C by the end.

A typical September day in Tam Kỳ 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 32°C. Set against its neighbours, September runs about 2°C cooler than August and about 2°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83125
93125
103125
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
232925
242925
252925
262925
272925
282925
292925
302925

How September really feels in Tam Kỳ

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.

Tam Kỳ weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 20°19818.311.25.5
Feb25° / 20°10511.811.56.5
Mar27° / 22°939.411.96.7
Apr29° / 24°789.412.35.4
May31° / 25°11417.212.73.6
Jun32° / 26°11219.912.92.9
Jul32° / 26°12620.812.82.9
Aug32° / 26°15321.712.52.9
Sep30° / 25°31024.312.13.2
Oct28° / 24°48025.211.64.0
Nov26° / 23°56123.711.34.4
Dec24° / 21°45424.611.14.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12278
22278
32278
42179
52179
62080
72080
82080
91981
101981
112179
122179
132179
142179
152179
162377
172377
182377
192476
202476
212575
222674
232674
242674
252674
262773
272773
282872
292872
302773

Chance of precipitation in September

Any precipitation

Tam Kỳ gets around 310 mm of rain over 24.3 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 81% and peaks near 83% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
180
280
381
482
582
682
783
883
983
1083
1183
1282
1382
1482
1581
1681
1780
1880
1979
2079
2179
2279
2379
2479
2579
2679
2779
2880
2980
3080

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
101981
202080
302179
402278
502377
602476
702674
802773
902872
1002971
1103169
1213267
1313366
1413465
1513663
1613762
1713861
1814059
1914158
2014356
2114554
2214653
2314851
2415049
2515247
2615445
2715643
2815841
2925939
3026137

Wind in September

Winds average 7 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
268calm
278calm
288calm
298calm
308calm

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 5:37 AM to 5:39 AM, and sunset from 5:55 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:375:55
212.35:375:54
312.35:375:53
412.35:375:53
512.25:375:52
612.25:375:51
712.25:375:50
812.25:375:50
912.25:375:49
1012.25:375:48
1112.25:375:47
1212.15:385:46
1312.15:385:45
1412.15:385:45
1512.15:385:44
1612.15:385:43
1712.15:385:42
1812.15:385:41
1912.05:385:41
2012.05:385:40
2112.05:385:39
2212.05:385:38
2312.05:385:37
2412.05:385:36
2512.05:395:36
2611.95:395:35
2711.95:395:34
2811.95:395:33
2911.95:395:32
3011.95:395:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.96 kWh/m².

For context, solar energy here swings from a low near 2.51 kWh/m² to a high of 6.15 kWh/m² in May across the year — September's 4.96 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.0Bright
145.0Bright
155.0Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Hazard calendar for Tam Kỳ

In seasonPeak

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

Tam Kỳ sits in the Pacific typhoon belt; the season peaks July–October.

Tam Kỳ's monsoon runs September–December, when most of the year's rain falls.

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

Is September a good time to visit Tam Kỳ?

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

3.2
Sightseeing
9th-best month of the year
4.4
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Tam Kỳ.

What to pack for Tam Kỳ in September

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

In September, Tam Kỳ sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Tam Kỳ 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 17 km away) is warmest in August at about 30°C and coldest in February near 23°C.

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

25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb23Refreshing
Mar24Refreshing
Apr25Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct28Warm
Nov27Warm
Dec25Warm

UV index in Tam Kỳ in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tam Kỳ peaks around July 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJul 24UV 13Dec 16UV 7
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar11Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Tam Kỳ 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 Tam Kỳ is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (September, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1326 µg/m³Sep 1016 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb21Moderate
Mar25Moderate
Apr26Moderate
May22Moderate
Jun20Moderate
Jul16Moderate
Aug16Moderate
Sep16Moderate
Oct18Moderate
Nov17Moderate
Dec20Moderate
Location & terrain

Where is Tam Kỳ?

Tam Kỳ sits at 15.6°N, 108.5°E, 11 m above sea level, in Vietnam. The nearest listed city is Núi Thành, 25 km away.

Topography around Tam Kỳ

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

Within 3 km, the terrain around Tam Kỳ has only modest variations in elevation — a maximum elevation change of 37 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 442 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,565 m.

The land around Tam Kỳ is covered by artificial surfaces (36%) and trees (25%) within 3 km, trees (36%) and water (26%) within 16 km, and trees (49%) and water (40%) within 80 km.

3 km
37 m
16 km
442 m
80 km
2,565 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Núi Thành 25 km · Đông Phú 29 km · Hoi An 37 km · Điện Bàn 42 km · Đại Lộc 51 km · Hải Châu 53 km · Cẩm Lệ 57 km · Sơn Trà 60 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 Tam Kỳ (15.5736°, 108.474°, elevation 11 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).