Chũ in Spring
In spring (March, April and May), Chũ sees average daytime highs around 27°C and overnight lows near 21°C, with 382 mm of rain over about 42 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 32°C by late May. The sky is clear or mostly clear about 10% of the time across spring, and the air most often feels oppressive.
Spring is Chũ's 3rd-best season to visit on our travel score. For the whole year in context, see Chũ's year-round climate.
- Avg daytime high
- 27°C
- 3rd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 382 mm
- 42 wet days
- Avg wind
- 9 km/h
- Travel score
- 5.1
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Chũ in Spring
Over the season highs climb from about 22°C in early March to 32°C by late May.
A typical spring day in Chũ reaches about 27°C and drops to 21°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Chũ
Once humidity and wind are folded in, spring brings about 37 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.
Chũ 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 | 19° / 14° | 37 | 6.8 | 10.8 | 6.2 |
| Feb | 21° / 15° | 22 | 6.3 | 11.3 | 6.4 |
| Mar | 23° / 18° | 49 | 10 | 11.8 | 6.4 |
| Apr | 28° / 22° | 79 | 11.9 | 12.5 | 5.5 |
| May | 31° / 24° | 254 | 20.2 | 13 | 3.4 |
| Jun | 32° / 26° | 287 | 22 | 13.3 | 2.5 |
| Jul | 32° / 26° | 301 | 24.6 | 13.2 | 2.5 |
| Aug | 32° / 26° | 366 | 26.2 | 12.7 | 2.5 |
| Sep | 31° / 24° | 233 | 20.1 | 12.1 | 3.4 |
| Oct | 29° / 22° | 102 | 11.9 | 11.5 | 5.5 |
| Nov | 25° / 18° | 55 | 7.7 | 11 | 7.0 |
| Dec | 21° / 15° | 34 | 6.5 | 10.7 | 6.9 |
Cloud cover in Spring
The sky is clear or mostly clear about 10% of the time across spring.
Chance of precipitation in Spring
Chũ gets around 382 mm of rain over 42 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 9 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 30 min in early March to 13 h 12 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 3.9 kWh/m².
Hazard calendar for Chũ
In spring, Chũ overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Chũ's monsoon runs May–September, when most of the year's rain falls.
Is spring a good time to visit Chũ?
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 Chũ for sightseeing.
What to pack for Chũ in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Chũ sees daytime highs around 27°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 42 days see rain.
UV index in Chũ in Spring
Clear-sky midday UV across spring averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chũ peaks around June 21 at about 11 (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 | 7 | 8 | 7 | 9 | 12 | 11 | 8 | 8 | 8 | 6 | 6 |
| Level | High | Very high | Very high | High | Very high | Extreme | Extreme | Very high | Very high | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | High |
| Feb | 7 | Very high |
| Mar | 8 | Very high |
| Apr | 7 | High |
| May | 9 | Very high |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 8 | Very high |
| Sep | 8 | Very high |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 6 | High |
Air quality in Chũ 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 Chũ is worst in December — around 92 µg/m³ PM2.5 (unhealthy), about 2.6× 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) | 90 | 80 | 76 | 66 | 49 | 37 | 35 | 40 | 59 | 74 | 82 | 92 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 90 | Unhealthy |
| Feb | 80 | Unhealthy |
| Mar | 76 | Unhealthy |
| Apr | 66 | Unhealthy |
| May | 49 | Poor |
| Jun | 37 | Poor |
| Jul | 35 | Moderate |
| Aug | 40 | Poor |
| Sep | 59 | Unhealthy |
| Oct | 74 | Unhealthy |
| Nov | 82 | Unhealthy |
| Dec | 92 | Unhealthy |
Where is Chũ?
Chũ sits at 21.4°N, 106.6°E, 18 m above sea level, in Vietnam. The nearest listed city is Thị Trấn Đông Triều, 33 km away.
Topography around Chũ
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chũ.
Within 3 km, the terrain around Chũ has only modest variations in elevation — a maximum elevation change of 202 m around an average of 17 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 508 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,567 m.
The land around Chũ is covered by trees (84%) within 3 km, trees (87%) within 16 km, and trees (67%) 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 Chũ (21.3738°, 106.5665°, elevation 18 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.