Bà Nà in Fall
In fall (September, October and November), Bà Nà sees average daytime highs around 28°C and overnight lows near 22°C, with 1274 mm of rain over about 76 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Over the season highs ease from about 31°C in early September to 25°C by late November. The sky is clear or mostly clear about 9% of the time across fall, and the air most often feels oppressive.
Fall is Bà Nà's 3rd-best season to visit on our travel score. For the whole year in context, see Bà Nà's year-round climate.
- Avg daytime high
- 28°C
- 3rd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 1274 mm
- 76 wet days
- Avg wind
- 5 km/h
- Travel score
- 3.7
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Bà Nà in Fall
Over the season highs ease from about 31°C in early September to 25°C by late November.
A typical fall day in Bà Nà reaches about 28°C and drops to 22°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Bà Nà
Once humidity and wind are folded in, fall brings about 35 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Bà Nà weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 23° / 18° | 153 | 16.4 | 11.2 | 5.6 |
| Feb | 25° / 19° | 85 | 11.8 | 11.5 | 6.3 |
| Mar | 28° / 21° | 111 | 13.8 | 11.9 | 5.7 |
| Apr | 30° / 23° | 141 | 18.3 | 12.3 | 3.9 |
| May | 32° / 24° | 287 | 26.4 | 12.7 | 2.5 |
| Jun | 33° / 25° | 216 | 24.3 | 12.9 | 2.3 |
| Jul | 32° / 25° | 244 | 25.9 | 12.9 | 2.4 |
| Aug | 32° / 25° | 274 | 26.1 | 12.5 | 2.5 |
| Sep | 30° / 24° | 377 | 26.8 | 12.1 | 2.8 |
| Oct | 28° / 22° | 433 | 25.6 | 11.6 | 3.9 |
| Nov | 26° / 21° | 465 | 23.1 | 11.3 | 4.5 |
| Dec | 23° / 19° | 329 | 22.7 | 11.1 | 4.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 9% of the time across fall.
Chance of precipitation in Fall
Bà Nà gets around 1274 mm of rain over 76 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 5 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 18 min in early September to 11 h 06 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.9 kWh/m².
Hazard calendar for Bà Nà
In fall, Bà Nà overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Bà Nà sits in the Pacific typhoon belt; the season peaks July–October.
Bà Nà's rainy season runs May–December, when most of the year's rain falls.
Is fall a good time to visit Bà Nà?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Bà Nà.
What to pack for Bà Nà in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Bà Nà sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 76 days see rain.
Sea temperature near Bà Nà in Fall
The nearest coast averages about 28°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 45 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 24 | 23 | 24 | 25 | 28 | 29 | 29 | 30 | 29 | 28 | 27 | 25 |
| Comfort | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Refreshing |
| Feb | 23 | Refreshing |
| Mar | 24 | Refreshing |
| Apr | 25 | Warm |
| May | 28 | Warm |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 30 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Warm |
| Nov | 27 | Warm |
| Dec | 25 | Warm |
UV index in Bà Nà in Fall
Clear-sky midday UV across fall averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Bà Nà peaks around August 13 at about 13 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 9 | 11 | 11 | 11 | 12 | 13 | 13 | 12 | 11 | 8 | 6 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 9 | Very high |
| Mar | 11 | Extreme |
| Apr | 11 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 8 | Very high |
| Dec | 6 | High |
Air quality in Bà Nà in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Bà Nà is worst in March — around 49 µg/m³ PM2.5 (poor), about 3.0× the cleanest month (July, 16 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 25 | 29 | 49 | 42 | 28 | 21 | 16 | 17 | 20 | 22 | 21 | 23 |
| Level | Moderate | Moderate | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 25 | Moderate |
| Feb | 29 | Moderate |
| Mar | 49 | Poor |
| Apr | 42 | Poor |
| May | 28 | Moderate |
| Jun | 21 | Moderate |
| Jul | 16 | Moderate |
| Aug | 17 | Moderate |
| Sep | 20 | Moderate |
| Oct | 22 | Moderate |
| Nov | 21 | Moderate |
| Dec | 23 | Moderate |
Where is Bà Nà?
Bà Nà sits at 16.0°N, 108.0°E, 1,004 m above sea level, in Vietnam. The nearest listed city is Hải Châu, 18 km away.
Topography around Bà Nà
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bà Nà.
Within 3 km, the terrain around Bà Nà has very significant variations in elevation — a maximum elevation change of 1,343 m around an average of 780 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,481 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,013 m.
The land around Bà Nà is covered by trees (98%) within 3 km, trees (85%) within 16 km, and trees (59%) and water (32%) within 80 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
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 Bà Nà (15.9833°, 107.9833°, elevation 1,004 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.