Dĩ An in Summer
In summer (June, July and August), Dĩ An sees average daytime highs around 31°C and overnight lows near 25°C, with 814 mm of rain over about 84 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 1% of the time across summer, and the air most often feels miserable.
Summer is Dĩ An's weakest season of the year to visit on our travel score. For the whole year in context, see Dĩ An's year-round climate.
- Avg daytime high
- 31°C
- 3rd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 814 mm
- 84 wet days
- Avg wind
- 8 km/h
- Travel score
- 2.4
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Dĩ An in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in Dĩ An reaches about 31°C and drops to 25°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Dĩ An
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Dĩ An weather by month
How the three summer months (June, July and August) 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 | 32° / 23° | 21 | 3.8 | 11.4 | 4.7 |
| Feb | 33° / 24° | 8 | 1.6 | 11.6 | 4.3 |
| Mar | 34° / 25° | 25 | 5 | 11.9 | 3.4 |
| Apr | 34° / 26° | 75 | 12.3 | 12.2 | 2.7 |
| May | 33° / 26° | 205 | 24 | 12.5 | 2.2 |
| Jun | 32° / 25° | 256 | 26.9 | 12.6 | 2.3 |
| Jul | 31° / 25° | 276 | 28.7 | 12.6 | 2.4 |
| Aug | 31° / 25° | 283 | 28.8 | 12.4 | 2.4 |
| Sep | 31° / 25° | 301 | 28.4 | 12.1 | 2.4 |
| Oct | 31° / 25° | 250 | 26.4 | 11.8 | 2.7 |
| Nov | 31° / 24° | 122 | 15.5 | 11.5 | 3.8 |
| Dec | 31° / 23° | 55 | 8.6 | 11.4 | 4.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 1% of the time across summer.
Chance of precipitation in Summer
Dĩ An gets around 814 mm of rain over 84 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 36 min in early June to 12 h 12 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 4.8 kWh/m².
Hazard calendar for Dĩ An
In summer, Dĩ An overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Dĩ An sits in the Pacific typhoon belt; the season peaks July–October.
Dĩ An's rainy season runs May–October, when most of the year's rain falls.
Is summer a good time to visit Dĩ An?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Dĩ An.
What to pack for Dĩ An in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Dĩ An sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 84 days see rain.
Sea temperature near Dĩ An in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 60 km away) is warmest in May at about 30°C and coldest in January near 26°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) | 26 | 26 | 27 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 27 | Warm |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Dĩ An in Summer
Clear-sky midday UV across summer 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 Dĩ An peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 15 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 | 11 | 13 | 13 | 12 | 11 | 11 | 12 | 12 | 9 | 8 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 9 | Very high |
| Nov | 8 | Very high |
| Dec | 9 | Very high |
Air quality in Dĩ An in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Dĩ An is worst in January — around 54 µg/m³ PM2.5 (poor), about 1.9× the cleanest month (August, 29 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) | 54 | 49 | 47 | 44 | 39 | 34 | 31 | 29 | 35 | 43 | 48 | 46 |
| Level | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 54 | Poor |
| Feb | 49 | Poor |
| Mar | 47 | Poor |
| Apr | 44 | Poor |
| May | 39 | Poor |
| Jun | 34 | Moderate |
| Jul | 31 | Moderate |
| Aug | 29 | Moderate |
| Sep | 35 | Moderate |
| Oct | 43 | Poor |
| Nov | 48 | Poor |
| Dec | 46 | Poor |
Where is Dĩ An?
Dĩ An sits at 10.9°N, 106.8°E, 32 m above sea level, in Vietnam. The nearest listed city is Thuận An, 6.0 km away.
Topography around Dĩ An
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Dĩ An.
Within 3 km, the terrain around Dĩ An has only modest variations in elevation — a maximum elevation change of 122 m around an average of 31 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 158 m; within 80 km, large variations in elevation — a maximum elevation change of 895 m.
The land around Dĩ An is covered by artificial surfaces (84%) within 3 km, artificial surfaces (52%) and trees (21%) within 16 km, and trees (52%) 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 Dĩ An (10.9068°, 106.7694°, elevation 32 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.