Phong Thạnh in Winter
In winter (December, January and February), Phong Thạnh sees average daytime highs around 31°C and overnight lows near 24°C, with 152 mm of rain over about 22 wet days across the season. It is the 3rd-warmest season and the driest season of the year.
Over the season highs climb from about 30°C in early December to 32°C by late February. The sky is clear or mostly clear about 19% of the time across winter, and the air most often feels oppressive.
Winter is Phong Thạnh's best season of the year to visit on our travel score. For the whole year in context, see Phong Thạnh's year-round climate.
- Avg daytime high
- 31°C
- 3rd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 152 mm
- 22 wet days
- Avg wind
- 11 km/h
- Travel score
- 4.8
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Phong Thạnh in Winter
Over the season highs climb from about 30°C in early December to 32°C by late February.
A typical winter day in Phong Thạnh reaches about 31°C and drops to 24°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Phong Thạnh
Once humidity and wind are folded in, winter brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Phong Thạnh weather by month
How the three winter months (December, January and February) 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 | 30° / 23° | 33 | 6 | 11.5 | 5.1 |
| Feb | 32° / 24° | 19 | 3.4 | 11.7 | 4.8 |
| Mar | 33° / 25° | 59 | 8.8 | 11.9 | 3.7 |
| Apr | 33° / 26° | 119 | 16.6 | 12.2 | 2.8 |
| May | 33° / 26° | 257 | 26.9 | 12.4 | 2.2 |
| Jun | 31° / 25° | 288 | 28.4 | 12.5 | 2.3 |
| Jul | 31° / 25° | 300 | 29.6 | 12.5 | 2.4 |
| Aug | 31° / 25° | 286 | 29.4 | 12.3 | 2.4 |
| Sep | 31° / 25° | 337 | 28.9 | 12.1 | 2.4 |
| Oct | 31° / 25° | 406 | 29 | 11.8 | 2.6 |
| Nov | 30° / 24° | 209 | 22.2 | 11.6 | 3.3 |
| Dec | 30° / 24° | 101 | 12.7 | 11.5 | 4.5 |
Cloud cover in Winter
The sky is clear or mostly clear about 19% of the time across winter.
Chance of precipitation in Winter
Phong Thạnh gets around 152 mm of rain over 22 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 11 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 30 min in early December to 11 h 48 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 5.1 kWh/m².
Hazard calendar for Phong Thạnh
In winter, Phong Thạnh overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Phong Thạnh sits in the Pacific typhoon belt; the season peaks July–October.
Phong Thạnh's rainy season runs May–November, when most of the year's rain falls.
Is winter a good time to visit Phong Thạnh?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Phong Thạnh for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Phong Thạnh in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Phong Thạnh sees daytime highs around 31°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 22 days see rain.
Sea temperature near Phong Thạnh in Winter
The nearest coast averages about 26°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 38 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 | 28 | 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 | 28 | 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 Phong Thạnh in Winter
Clear-sky midday UV across winter 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 Phong Thạnh peaks around March 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 10 (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 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 11 | 10 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Extreme |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 10 | Extreme |
| Dec | 10 | Very high |
Air quality in Phong Thạnh in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Phong Thạnh is worst in December — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (May, 12 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) | 19 | 17 | 15 | 14 | 12 | 13 | 15 | 13 | 14 | 15 | 18 | 22 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 17 | Moderate |
| Mar | 15 | Moderate |
| Apr | 14 | Moderate |
| May | 12 | Good |
| Jun | 13 | Moderate |
| Jul | 15 | Moderate |
| Aug | 13 | Moderate |
| Sep | 14 | Moderate |
| Oct | 15 | Moderate |
| Nov | 18 | Moderate |
| Dec | 22 | Moderate |
Where is Phong Thạnh?
Phong Thạnh sits at 9.3°N, 105.3°E, 1 m above sea level, in Vietnam. The nearest listed city is Ấp Hô Phòng, 13 km away.
Topography around Phong Thạnh
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Phong Thạnh.
Within 3 km, the terrain around Phong Thạnh has only modest variations in elevation — a maximum elevation change of 6 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 10 m; within 80 km, only modest variations in elevation — a maximum elevation change of 22 m.
The land around Phong Thạnh is covered by cropland (38%) and water (38%) within 3 km, cropland (50%) and water (33%) within 16 km, and water (46%) and cropland (35%) 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 Phong Thạnh (9.3236°, 105.3464°, elevation 1 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.