An Nhơn in Fall
In fall (September, October and November), An Nhơn sees average daytime highs around 29°C and overnight lows near 24°C, with 798 mm of rain over about 69 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 33°C in early September to 26°C by late November. The sky is clear or mostly clear about 11% of the time across fall, and the air most often feels oppressive.
Fall is An Nhơn's 3rd-best season to visit on our travel score. For the whole year in context, see An Nhơn's year-round climate.
- Avg daytime high
- 29°C
- 3rd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 798 mm
- 69 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.6
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in An Nhơn in Fall
Over the season highs ease from about 33°C in early September to 26°C by late November.
A typical fall day in An Nhơn reaches about 29°C and drops to 24°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in An Nhơn
Once humidity and wind are folded in, fall brings about 50 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.
An Nhơn 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 | 25° / 20° | 69 | 13.7 | 11.3 | 6.1 |
| Feb | 26° / 21° | 35 | 8.7 | 11.5 | 6.7 |
| Mar | 29° / 22° | 47 | 9.3 | 11.9 | 5.9 |
| Apr | 31° / 24° | 58 | 10.4 | 12.3 | 4.4 |
| May | 33° / 26° | 122 | 17.9 | 12.6 | 2.9 |
| Jun | 34° / 27° | 80 | 15.3 | 12.8 | 2.6 |
| Jul | 33° / 26° | 82 | 15.3 | 12.7 | 2.8 |
| Aug | 33° / 26° | 98 | 16.1 | 12.5 | 2.8 |
| Sep | 32° / 25° | 202 | 22 | 12.1 | 2.8 |
| Oct | 29° / 24° | 278 | 25 | 11.7 | 3.6 |
| Nov | 27° / 23° | 318 | 22.1 | 11.4 | 4.5 |
| Dec | 25° / 21° | 197 | 20.2 | 11.2 | 5.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 11% of the time across fall.
Chance of precipitation in Fall
An Nhơn gets around 798 mm of rain over 69 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 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 18 min in early September to 11 h 12 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 4.2 kWh/m².
Hazard calendar for An Nhơn
In fall, An Nhơn overlaps its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
An Nhơn sits in the Pacific typhoon belt; the season peaks July–October.
An Nhơn's monsoon runs September–December, when most of the year's rain falls.
Is fall a good time to visit An Nhơn?
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 An Nhơn.
What to pack for An Nhơn in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, An Nhơn sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 69 days see rain.
Sea temperature near An Nhơn 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 29 km away) is warmest in September at about 29°C and coldest in February near 24°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 | 24 | 25 | 27 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 24 | Warm |
| Mar | 25 | Warm |
| Apr | 27 | Warm |
| May | 28 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Warm |
| Nov | 27 | Warm |
| Dec | 25 | Warm |
UV index in An Nhơn in Fall
Clear-sky midday UV across fall averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in An Nhơn peaks around August 13 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 11 | 9 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 12 | Extreme |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 7 | Very high |
Air quality in An Nhơn 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 An Nhơn is worst in March — around 33 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (July, 13 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) | 18 | 19 | 33 | 28 | 19 | 15 | 13 | 14 | 16 | 17 | 15 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 19 | Moderate |
| Mar | 33 | Moderate |
| Apr | 28 | Moderate |
| May | 19 | Moderate |
| Jun | 15 | Moderate |
| Jul | 13 | Moderate |
| Aug | 14 | Moderate |
| Sep | 16 | Moderate |
| Oct | 17 | Moderate |
| Nov | 15 | Moderate |
| Dec | 15 | Moderate |
Where is An Nhơn?
An Nhơn sits at 13.9°N, 109.1°E, 13 m above sea level, in Vietnam. The nearest listed city is Qui Nhon, 17 km away.
Topography around An Nhơn
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of An Nhơn.
Within 3 km, the terrain around An Nhơn has only modest variations in elevation — a maximum elevation change of 113 m around an average of 10 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 642 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,452 m.
The land around An Nhơn is covered by cropland (50%), trees (20%) and artificial surfaces (20%) within 3 km, trees (39%) and cropland (35%) within 16 km, and trees (49%) 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 An Nhơn (13.8858°, 109.1082°, elevation 13 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.