Phú Quý weather in September

In September, Phú Quý sees average daytime highs of 28°C and overnight lows near 27°C, with 209 mm of rain across 23.3 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. 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 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 Phú Quý's 12th-clearest and 8th-windiest month. For the whole year in context, see Phú Quý's year-round climate.

Daytime high
28°
5th warmest
Overnight low
27°
7th coldest
Rainfall
209 mm
23.3 wet days
Daylight
12 h 06 min
5:37 AM – 5:40 PM
Cloud cover
79%
12th clearest
Wind
26 km/h
8th windiest
Solar energy
5.45 kWh/m²
Travel score
4.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Phú Quý reaches about 28°C in the afternoon and slips back to 27°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12827
22827
32827
42827
52827
62827
72827
82827
92827
102827
112827
122827
132827
142827
152827
162827
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826

How September really feels in Phú Quý

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.

Phú Quý weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 24°363.611.57.8
Feb25° / 25°111.911.78.2
Mar27° / 26°284.611.97.7
Apr28° / 27°538.112.26.6
May29° / 27°14120.612.54.2
Jun29° / 27°18322.812.63.8
Jul28° / 27°15623.212.64.0
Aug28° / 27°13721.812.34.2
Sep28° / 27°20923.312.14.0
Oct27° / 26°2732411.84.3
Nov27° / 26°17816.211.55.5
Dec26° / 25°14411.111.46.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12377
22377
32377
42377
52278
62278
72278
82278
92179
102179
112080
121981
132080
142080
152080
161981
171981
181981
191981
202080
212080
222080
232080
242080
252179
262179
272179
282377
292476
302575

Chance of precipitation in September

Any precipitation

Phú Quý gets around 209 mm of rain over 23.3 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 78% and peaks near 82% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
171
271
371
471
572
673
773
874
975
1076
1177
1278
1379
1479
1580
1680
1781
1881
1981
2081
2181
2281
2381
2481
2581
2682
2782
2882
2982
3082

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11288
21288
31288
41387
51387
61387
71387
81387
91387
101387
111387
121387
131387
141387
151387
161387
171387
181486
191486
201486
211585
221684
231684
241783
251882
262080
272179
282377
292575
302773

Wind in September

Winds average 26 km/h in September.

Across September, daily wind ranges from about 22 km/h on the calmest days to 28 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
128breezy
228breezy
328breezy
428breezy
528breezy
628breezy
728breezy
828breezy
928breezy
1028breezy
1127breezy
1227breezy
1327breezy
1427breezy
1527breezy
1627breezy
1726breezy
1826breezy
1926breezy
2025breezy
2125breezy
2225breezy
2324breezy
2424breezy
2524breezy
2623breezy
2723breezy
2822breezy
2922breezy
3022breezy

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 5:38 AM to 5:36 AM, and sunset from 5:50 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:385:50
212.25:385:49
312.25:385:49
412.25:385:48
512.25:385:48
612.25:385:47
712.15:385:46
812.15:375:46
912.15:375:45
1012.15:375:44
1112.15:375:44
1212.15:375:43
1312.15:375:42
1412.15:375:42
1512.15:375:41
1612.15:375:40
1712.05:375:40
1812.05:375:39
1912.05:375:38
2012.05:375:38
2112.05:375:37
2212.05:365:36
2312.05:365:36
2412.05:365:35
2512.05:365:34
2612.05:365:34
2711.95:365:33
2811.95:365:32
2911.95:365:32
3011.95:365:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.45 kWh/m².

For context, solar energy here swings from a low near 4.43 kWh/m² to a high of 6.67 kWh/m² in April across the year — September's 5.45 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Phú Quý

In seasonPeak

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

Phú Quý sits in the Pacific typhoon belt; the season peaks July–October.

Phú Quý's rainy season runs May–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 Phú Quý?

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

4.0
Sightseeing
10th-best month of the year
4.5
Beach & pool
12th-best month of the year

September is a reasonable time to visit Phú Quý for sightseeing.

What to pack for Phú Quý in September

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

In September, Phú Quý sees daytime highs around 28°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 23 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Phú Quý 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 at the nearest coast (about 14 km away) 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
Mar26Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct28Tropical
Nov27Warm
Dec26Warm

UV index in Phú Quý 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 Phú Quý peaks around August 23 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 highAug 23UV 13Dec 15UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov10Extreme
Dec9Very high

Air quality in Phú Quý 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 Phú Quý is worst in July — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (April, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodJul 1918 µg/m³Apr 2210 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar11Good
Apr10Good
May10Good
Jun15Moderate
Jul18Moderate
Aug16Moderate
Sep16Moderate
Oct13Moderate
Nov10Good
Dec12Good
Location & terrain

Where is Phú Quý?

Phú Quý sits at 10.5°N, 108.9°E, 6 m above sea level, in Vietnam. The nearest listed city is Mui Ne, 85 km away.

Phan ThiếtPhan Rang-Tháp ChàmKhánh HảiLa GiĐưc TrọngẤp Bình ChâuCam Ranh

Topography around Phú Quý

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

Within 3 km, the terrain around Phú Quý has only modest variations in elevation — a maximum elevation change of 95 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 95 m; within 80 km, only modest variations in elevation — a maximum elevation change of 88 m.

The land around Phú Quý is covered by water (60%) and trees (30%) within 3 km, water (98%) within 16 km, and water (100%) within 80 km.

3 km
95 m
16 km
95 m
80 km
88 m
treesgrasslandartificial surfaceswater
September weather nearby: Mui Ne 85 km · Phan Thiết 102 km · Phan Rang-Tháp Chàm 117 km · Khánh Hải 120 km · La Gi 128 km · Đưc Trọng 149 km · Ấp Bình Châu 151 km · Cam Ranh 158 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 Phú Quý (10.5166°, 108.9329°, 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).