Tuy Hòa weather in September

In September, Tuy Hòa sees average daytime highs of 30°C and overnight lows near 26°C, with 163 mm of rain across 20.9 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 Tuy Hòa's 12th-clearest and 11th-windiest month. For the whole year in context, see Tuy Hòa's year-round climate.

Daytime high
30°
5th warmest
Overnight low
26°
8th coldest
Rainfall
163 mm
20.9 wet days
Daylight
12 h 06 min
5:35 AM – 5:39 PM
Cloud cover
80%
12th clearest
Wind
9 km/h
11th windiest
Solar energy
5.15 kWh/m²
Travel score
3.4
out of 10

Tuy Hòa is provincial city of Vietnam.

Density
1,457/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

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

A typical September day in Tuy Hòa reaches about 30°C in the afternoon and slips back to 26°C overnight — a 4°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 1°C cooler than August and about 3°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13127
23127
33127
43126
53126
63126
73126
83126
93126
103126
113126
123126
133126
143126
153026
163026
173026
183026
193026
203026
213026
223026
233026
243026
253026
263025
272925
282925
292925
302925

How September really feels in Tuy Hòa

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.

Tuy Hòa 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° / 21°15518.511.35.5
Feb25° / 22°8011.811.66.5
Mar27° / 23°6710.311.96.7
Apr29° / 25°639.312.35.8
May30° / 26°11017.312.63.9
Jun31° / 27°7616.412.83.6
Jul31° / 27°6814.912.73.8
Aug31° / 27°7314.112.43.7
Sep30° / 26°16320.912.13.4
Oct28° / 25°32025.711.73.9
Nov26° / 24°44324.711.44.2
Dec25° / 22°38024.711.24.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% 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 81%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12179
21981
31981
41981
51783
61783
71783
81684
91684
101684
111585
121585
131585
141684
151684
161783
171783
181882
191981
201981
211981
222179
232179
242179
252278
262278
272377
282377
292476
302476

Chance of precipitation in September

Any precipitation

Tuy Hòa gets around 163 mm of rain over 20.9 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 70% 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 (%)
156
256
357
459
560
661
762
864
965
1066
1168
1269
1370
1471
1572
1673
1774
1874
1975
2075
2175
2275
2376
2476
2576
2677
2777
2878
2978
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 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
107723
207723
307723
407822
507822
607921
707921
807921
908020
1008020
1108020
1208020
1308020
1408020
1508020
1608020
1708020
1808020
1907921
2007921
2107921
2207822
2307822
2407822
2507822
2607822
2707921
2807921
2907921
3017821

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 5:35 AM to 5:35 AM, and sunset from 5:50 PM to 5:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:355:50
212.25:355:49
312.25:355:49
412.25:355:48
512.25:355:47
612.25:355:47
712.25:355:46
812.25:355:45
912.25:355:44
1012.15:355:44
1112.15:355:43
1212.15:355:42
1312.15:355:41
1412.15:355:41
1512.15:355:40
1612.15:355:39
1712.15:355:38
1812.05:355:38
1912.05:355:37
2012.05:355:36
2112.05:355:35
2212.05:355:35
2312.05:355:34
2412.05:355:33
2512.05:355:33
2611.95:355:32
2711.95:355:31
2811.95:355:30
2911.95:355:30
3011.95:355:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.15 kWh/m².

For context, solar energy here swings from a low near 3.11 kWh/m² to a high of 6.22 kWh/m² in April across the year — September's 5.15 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Tuy Hòa

In seasonPeak

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

Tuy Hòa sits in the Pacific typhoon belt; the season peaks July–October.

Tuy Hòa's monsoon runs October–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 Tuy Hòa?

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

3.4
Sightseeing
12th-best month of the year
4.8
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Tuy Hòa.

What to pack for Tuy Hòa in September

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

In September, Tuy Hòa sees daytime highs around 30°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Tuy Hòa 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 offshore is warmest in September at about 29°C and coldest in January near 24°C.

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

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb24Warm
Mar25Warm
Apr27Warm
May28Tropical
Jun29Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct28Warm
Nov27Warm
Dec25Warm

UV index in Tuy Hòa 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 Tuy Hòa peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 15UV 13Dec 16UV 8
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec8Very high

Air quality in Tuy Hòa 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 Tuy Hòa is worst in June — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2117 µg/m³Nov 1812 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar15Moderate
Apr17Moderate
May16Moderate
Jun17Moderate
Jul17Moderate
Aug16Moderate
Sep14Moderate
Oct15Moderate
Nov12Good
Dec14Moderate
Location & terrain

Where is Tuy Hòa?

Tuy Hòa sits at 13.1°N, 109.3°E, 8 m above sea level, in Vietnam. The nearest listed city is Tu Bông, 37 km away.

Nha TrangA Yun PaBuôn Hồ

Topography around Tuy Hòa

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

Within 3 km, the terrain around Tuy Hòa has only modest variations in elevation — a maximum elevation change of 50 m around an average of 3 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 463 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,947 m.

The land around Tuy Hòa is covered by water (57%) and artificial surfaces (24%) within 3 km, water (47%), trees (20%) and cropland (20%) within 16 km, and trees (43%) and water (42%) within 80 km.

3 km
50 m
16 km
463 m
80 km
1,947 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Tu Bông 37 km · Sông Cầu 41 km · Ninh Hòa 70 km · Qui Nhon 76 km · An Nhơn 91 km · Nha Trang 96 km · A Yun Pa 102 km · Buôn Hồ 112 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 Tuy Hòa (13.0955°, 109.3209°, elevation 8 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).