Cam Ranh weather in September

In September, Cam Ranh sees average daytime highs of 30°C and overnight lows near 26°C, with 160 mm of rain across 20.7 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 7% 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 Cam Ranh's 12th-clearest and 12th-windiest month. For the whole year in context, see Cam Ranh's year-round climate.

Daytime high
30°
5th warmest
Overnight low
26°
8th coldest
Rainfall
160 mm
20.7 wet days
Daylight
12 h 06 min
5:36 AM – 5:40 PM
Cloud cover
81%
12th clearest
Wind
7 km/h
12th windiest
Solar energy
5.26 kWh/m²
Travel score
3.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Cam Ranh 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 31°C. Set against its neighbours, September runs about 1°C cooler than August and about 2°C warmer than October.

25°28°30°33°35°151015202530
Avg high (°C)Avg low (°C)
13127
23127
33127
43127
53027
63027
73027
83027
93027
103027
113027
123027
133026
143026
153026
163026
173026
183026
193026
203026
213026
223026
233026
242926
252926
262926
272926
282926
292926
302926

How September really feels in Cam Ranh

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.

Cam Ranh 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
Jan25° / 22°8012.411.46.4
Feb26° / 23°367.511.67.0
Mar28° / 24°569.811.96.5
Apr29° / 26°6010.912.35.3
May30° / 27°9516.312.54.0
Jun31° / 27°6311.912.74.1
Jul31° / 27°5411.912.64.2
Aug31° / 27°6613.312.44.0
Sep30° / 26°16020.712.13.6
Oct28° / 25°28925.311.73.8
Nov27° / 24°30721.711.54.6
Dec26° / 23°26419.311.35.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% 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 83%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12278
22179
32080
41981
51882
61882
71783
81783
91684
101486
111486
121486
131486
141486
151486
161486
171585
181486
191585
201585
211684
221684
231783
241882
251981
262080
272080
282080
292179
302179

Chance of precipitation in September

Any precipitation

Cam Ranh gets around 160 mm of rain over 20.7 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 68% and peaks near 83% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
147
248
349
451
552
654
756
857
959
1061
1163
1265
1366
1468
1570
1672
1773
1875
1976
2077
2178
2279
2380
2480
2581
2681
2782
2882
2983
3083

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 77% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
12179
22179
32179
42179
52179
62278
72278
82278
92278
102377
112377
122377
132476
142476
152476
162377
172377
182278
192278
202278
212179
222179
232278
242278
252377
262476
272575
282674
292872
303070

Wind in September

Winds average 7 km/h in September, the calmest month.

Across September, daily wind ranges from about 7 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
278calm
288calm
298calm
308calm

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 5:36 AM to 5:35 AM, and sunset from 5:50 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:365:50
212.25:365:49
312.25:365:49
412.25:365:48
512.25:365:47
612.25:365:47
712.25:365:46
812.25:365:45
912.15:365:45
1012.15:365:44
1112.15:365:43
1212.15:365:42
1312.15:365:42
1412.15:365:41
1512.15:365:40
1612.15:365:40
1712.15:365:39
1812.05:365:38
1912.05:365:38
2012.05:365:37
2112.05:365:36
2212.05:365:35
2312.05:365:35
2412.05:365:34
2512.05:355:33
2612.05:355:33
2711.95:355:32
2811.95:355:31
2911.95:355:31
3011.95:355:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.26 kWh/m².

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 6.39 kWh/m² in April across the year — September's 5.26 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.6Bright
55.6Bright
65.5Bright
75.5Bright
85.5Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
Planning a trip in September

Hazard calendar for Cam Ranh

In seasonPeak

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

Cam Ranh sits in the Pacific typhoon belt; the season peaks July–October.

Cam Ranh'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 Cam Ranh?

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

3.6
Sightseeing
12th-best month of the year
4.9
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Cam Ranh.

What to pack for Cam Ranh in September

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

In September, Cam Ranh 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 Cam Ranh 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 24 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
Apr28Warm
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep29Tropical
Oct28Tropical
Nov27Warm
Dec26Warm

UV index in Cam Ranh 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 Cam Ranh peaks around April 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highApr 18UV 13Dec 16UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Cam Ranh 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 Cam Ranh is worst in July — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1718 µg/m³Nov 1713 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar15Moderate
Apr16Moderate
May15Moderate
Jun18Moderate
Jul19Moderate
Aug18Moderate
Sep16Moderate
Oct15Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is Cam Ranh?

Cam Ranh sits at 11.9°N, 109.2°E, 15 m above sea level, in Vietnam. The nearest listed city is Nha Trang, 36 km away.

Tu BôngĐinh Văn

Topography around Cam Ranh

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

Within 3 km, the terrain around Cam Ranh has significant variations in elevation — a maximum elevation change of 510 m around an average of 44 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 898 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,277 m.

The land around Cam Ranh is covered by water (37%), trees (28%) and artificial surfaces (22%) within 3 km, trees (38%) and water (34%) within 16 km, and trees (45%) and water (41%) within 80 km.

3 km
510 m
16 km
898 m
80 km
2,277 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Nha Trang 36 km · Khánh Hải 39 km · Phan Rang-Tháp Chàm 44 km · Ninh Hòa 64 km · Da Lat 78 km · Đưc Trọng 88 km · Tu Bông 95 km · Đinh Văn 101 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 Cam Ranh (11.9214°, 109.1591°, elevation 15 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).