Phong Điền weather in September

In September, Phong Điền sees average daytime highs of 30°C and overnight lows near 24°C, with 349 mm of rain across 25 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 8% 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 Phong Điền's 9th-clearest and 10th-windiest month. For the whole year in context, see Phong Điền's year-round climate.

Daytime high
30°
5th warmest
Overnight low
24°
8th coldest
Rainfall
349 mm
25 wet days
Daylight
12 h 06 min
5:42 AM – 5:48 PM
Cloud cover
82%
9th clearest
Wind
6 km/h
10th windiest
Solar energy
4.51 kWh/m²
Travel score
3.1
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 Phong Điền 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 27°C and 33°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203023
212923
222923
232923
242923
252923
262923
272923
282923
292923
302923

How September really feels in Phong Điền

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.

Phong Điền 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
Jan23° / 17°19318.111.15.3
Feb24° / 18°1211511.45.7
Mar27° / 20°1431711.95.4
Apr30° / 22°17120.912.43.8
May31° / 24°28125.912.82.7
Jun33° / 25°15320.2132.6
Jul32° / 25°16720.312.92.9
Aug32° / 25°20220.812.63.0
Sep30° / 24°3492512.13.1
Oct27° / 22°51225.911.64.0
Nov25° / 20°54023.211.24.5
Dec23° / 18°43123.4114.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 82%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11585
21585
31486
41486
51486
61486
71486
81585
91585
101585
111585
121585
131585
141783
151783
161783
171981
181981
192179
202179
212179
222278
232377
242377
252377
262377
272377
282377
292377
302377

Chance of precipitation in September

Any precipitation

Phong Điền gets around 349 mm of rain over 25 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 83% and peaks near 85% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
178
279
379
480
580
681
781
882
982
1082
1183
1283
1384
1484
1584
1685
1785
1885
1985
2085
2185
2285
2385
2485
2585
2685
2785
2885
2985
3085

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 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
108119
208119
308119
408119
508119
618019
718019
818019
917920
1017920
1117821
1217821
1317821
1427721
1527721
1627721
1727721
1827721
1927721
2027721
2127721
2227721
2327721
2427820
2537720
2637720
2737819
2847818
2947818
3057817

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 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
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 5:40 AM to 5:44 AM, and sunset from 6:00 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:406:00
212.35:415:59
312.35:415:58
412.35:415:58
512.35:415:57
612.35:415:56
712.25:415:55
812.25:415:54
912.25:415:54
1012.25:415:53
1112.25:425:52
1212.25:425:51
1312.15:425:50
1412.15:425:49
1512.15:425:48
1612.15:425:48
1712.15:425:47
1812.15:425:46
1912.05:425:45
2012.05:435:44
2112.05:435:43
2212.05:435:43
2312.05:435:42
2412.05:435:41
2511.95:435:40
2611.95:435:39
2711.95:435:38
2811.95:445:38
2911.95:445:37
3011.95:445:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.51 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 5.73 kWh/m² in June across the year — September's 4.51 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.7Bright
114.6Bright
124.6Bright
134.6Bright
144.5Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.1Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Phong Điền

In seasonPeak

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

Phong Điền sits in the Pacific typhoon belt; the season peaks July–October.

Phong Điền's rainy season runs September–December, 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 Phong Điền?

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

3.1
Sightseeing
8th-best month of the year
4.2
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Phong Điền.

What to pack for Phong Điền in September

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

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

light clothesrain gearsun protection

Sea temperature near Phong Điền 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 28 km away) is warmest in August at about 30°C and coldest in February near 22°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb22Refreshing
Mar23Refreshing
Apr25Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct28Tropical
Nov26Warm
Dec24Warm

UV index in Phong Điền 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 Phong Điền peaks around August 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highHighAug 13UV 14Dec 15UV 7
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar9Very high
Apr10Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec6High

Air quality in Phong Điền 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 Phong Điền is worst in March — around 76 µg/m³ PM2.5 (unhealthy), about 5.1× the cleanest month (July, 15 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateMar 2274 µg/m³Jul 1915 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb27Moderate
Mar76Unhealthy
Apr66Unhealthy
May26Moderate
Jun17Moderate
Jul15Moderate
Aug16Moderate
Sep19Moderate
Oct21Moderate
Nov18Moderate
Dec21Moderate
Location & terrain

Where is Phong Điền?

Phong Điền sits at 16.6°N, 107.4°E, 14 m above sea level, in Vietnam. The nearest listed city is Hương Trà, 13 km away.

Bà NàThanh Khê

Topography around Phong Điền

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

Within 3 km, the terrain around Phong Điền has only modest variations in elevation — a maximum elevation change of 67 m around an average of 12 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 678 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,057 m.

The land around Phong Điền is covered by trees (50%) and grassland (20%) within 3 km, trees (53%) and cropland (20%) within 16 km, and trees (62%) and water (29%) within 80 km.

3 km
67 m
16 km
678 m
80 km
2,057 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Hương Trà 13 km · thị xã Quảng Trị 27 km · Hue 28 km · Hương Thủy 34 km · Ðông Hà 38 km · Cam Lộ 47 km · Bà Nà 94 km · Thanh Khê 105 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 Phong Điền (16.5832°, 107.3644°, elevation 14 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).