Nga Sơn in Spring
In spring (March, April and May), Nga Sơn sees average daytime highs around 27°C and overnight lows near 23°C, with 261 mm of rain over about 27 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 22°C in early March to 31°C by late May. The sky is clear or mostly clear about 15% of the time across spring, and the air most often feels miserable.
Spring is Nga Sơn's 2nd-best season to visit on our travel score. For the whole year in context, see Nga Sơn's year-round climate.
- Avg daytime high
- 27°C
- 3rd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 261 mm
- 27 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.0
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Nga Sơn in Spring
Over the season highs climb from about 22°C in early March to 31°C by late May.
A typical spring day in Nga Sơn reaches about 27°C and drops to 23°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Nga Sơn
Once humidity and wind are folded in, spring brings about 34 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Nga Sơn weather by month
How the three spring months (March, April and May) 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 | 20° / 16° | 32 | 6.3 | 10.9 | 6.5 |
| Feb | 21° / 17° | 17 | 3.9 | 11.3 | 6.9 |
| Mar | 23° / 19° | 34 | 6 | 11.9 | 7.1 |
| Apr | 27° / 23° | 60 | 7 | 12.4 | 6.7 |
| May | 30° / 26° | 167 | 14.4 | 12.9 | 4.2 |
| Jun | 32° / 28° | 166 | 14.1 | 13.2 | 3.2 |
| Jul | 32° / 28° | 226 | 16.4 | 13.1 | 3.1 |
| Aug | 31° / 27° | 319 | 22.3 | 12.7 | 3.0 |
| Sep | 30° / 26° | 310 | 20.6 | 12.1 | 3.6 |
| Oct | 28° / 23° | 180 | 14.4 | 11.5 | 5.5 |
| Nov | 25° / 20° | 67 | 8.4 | 11.1 | 7.0 |
| Dec | 22° / 17° | 31 | 5.8 | 10.8 | 7.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 15% of the time across spring.
Chance of precipitation in Spring
Nga Sơn gets around 261 mm of rain over 27 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 12 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 36 min in early March to 13 h 06 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 4.6 kWh/m².
Hazard calendar for Nga Sơn
In spring, Nga Sơn overlaps its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
Nga Sơn sits in the Pacific typhoon belt; the season peaks July–October.
Nga Sơn's monsoon runs May–October, when most of the year's rain falls.
Is spring a good time to visit Nga Sơn?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Nga Sơn for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Nga Sơn in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Nga Sơn sees daytime highs around 27°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.
Sea temperature near Nga Sơn in Spring
The nearest coast averages about 24°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in August at about 30°C and coldest in February near 20°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) | 21 | 20 | 21 | 24 | 28 | 29 | 30 | 30 | 29 | 28 | 26 | 23 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 21 | Refreshing |
| Feb | 20 | Refreshing |
| Mar | 21 | Refreshing |
| Apr | 24 | Refreshing |
| May | 28 | Warm |
| Jun | 29 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Warm |
| Nov | 26 | Warm |
| Dec | 23 | Refreshing |
UV index in Nga Sơn in Spring
Clear-sky midday UV across spring averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Nga Sơn peaks around July 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 6 (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) | 7 | 9 | 10 | 8 | 10 | 12 | 12 | 11 | 9 | 9 | 7 | 6 |
| Level | Very high | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | Very high |
| Feb | 9 | Very high |
| Mar | 10 | Very high |
| Apr | 8 | Very high |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 9 | Very high |
| Oct | 9 | Very high |
| Nov | 7 | High |
| Dec | 6 | High |
Air quality in Nga Sơn in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Nga Sơn is worst in December — around 134 µg/m³ PM2.5 (unhealthy), about 3.8× the cleanest month (July, 35 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) | 126 | 106 | 94 | 87 | 60 | 42 | 35 | 46 | 69 | 93 | 116 | 134 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 126 | Unhealthy |
| Feb | 106 | Unhealthy |
| Mar | 94 | Unhealthy |
| Apr | 87 | Unhealthy |
| May | 60 | Unhealthy |
| Jun | 42 | Poor |
| Jul | 35 | Moderate |
| Aug | 46 | Poor |
| Sep | 69 | Unhealthy |
| Oct | 93 | Unhealthy |
| Nov | 116 | Unhealthy |
| Dec | 134 | Unhealthy |
Where is Nga Sơn?
Nga Sơn sits at 20.0°N, 106.0°E, 8 m above sea level, in Vietnam. The nearest listed city is Bỉm Sơn, 14 km away.
Topography around Nga Sơn
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nga Sơn.
Within 3 km, the terrain around Nga Sơn has only modest variations in elevation — a maximum elevation change of 30 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 253 m; within 80 km, large variations in elevation — a maximum elevation change of 989 m.
The land around Nga Sơn is covered by cropland (50%) and artificial surfaces (20%) within 3 km, cropland (37%), trees (23%) and water (20%) within 16 km, and trees (35%), cropland (29%) and water (28%) 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 Nga Sơn (20.0072°, 105.9704°, elevation 8 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.