Chũ climate
Chũ (Vietnam) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 23 °C74 °F, and about 1,498 mm59 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Chũ climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2169 | 1050 | 1560 | 391.5 |
| Feb | 2374 | 1355 | 1865 | 261.0 |
| Mar | 2780 | 1661 | 2171 | 512.0 |
| Apr | 3086 | 2068 | 2577 | 732.9 |
| May | 3289 | 2474 | 2882 | 1546.1 |
| Jun | 3289 | 2678 | 2984 | 2088.2 |
| Jul | 3289 | 2678 | 2984 | 28111 |
| Aug | 3189 | 2578 | 2883 | 29011 |
| Sep | 3188 | 2474 | 2781 | 1957.7 |
| Oct | 2983 | 2068 | 2476 | 1084.3 |
| Nov | 2578 | 1660 | 2169 | 461.8 |
| Dec | 2170 | 1152 | 1661 | 271.1 |
| Year | 3289 | 1050 | 2374 | 1,49859 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 79% | 74% | 2.2 | 10:58 |
| Feb | 80% | 79% | 2.5 | 11:25 |
| Mar | 80% | 85% | 2.7 | 11:58 |
| Apr | 79% | 80% | 3.6 | 12:37 |
| May | 82% | 80% | 4.6 | 13:09 |
| Jun | 87% | 87% | 4.7 | 13:26 |
| Jul | 88% | 84% | 4.7 | 13:19 |
| Aug | 87% | 82% | 4.5 | 12:51 |
| Sep | 85% | 72% | 4.5 | 12:14 |
| Oct | 83% | 60% | 3.8 | 11:37 |
| Nov | 81% | 60% | 3.2 | 11:05 |
| Dec | 77% | 63% | 2.6 | 10:50 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Chũ is like
The warmest month is June, with an average high of 32 °C89 °F and a low of 26 °C78 °F. The coldest is January, when highs average 21 °C69 °F and lows 10 °C50 °F. There is a clear seasonal cycle, with 13.3 °C24 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,498 mm59 in of precipitation per year. The wettest three-month stretch is June–August, which brings 52% of the annual total. The wettest month is August (290 mm11 in), the driest is February (26 mm1.0 in).
Relative humidity ranges from 77% in December to 88% in July. The clearest skies (lowest average cloud amount, 60%) are typical of November. Average wind speed near the ground ranges from 6 km/h (4 mph) in August to 9 km/h (6 mph) in February. Daylight lasts from about 10.8 hours in December to 13.4 hours in June.
Best time to visit Chũ
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 21 °C69 °F to 27 °C80 °F with 26 mm1.0 in to 51 mm2.0 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 31 °C89 °F, very wet (290 mm11 in) and humid (87% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Chũ
- Wetter months (May–September) — highs 3188 to 32 °C89 °F, lows 2474 to 26 °C78 °F, about 226 mm8.9 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (October–April) — highs 2169 to 30 °C86 °F, lows 1050 to 20 °C68 °F, about 53 mm2.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Chũ compares
Compared with Bắc Giang, about 40 km to the west, Chũ has practically the same average temperature and receives a similar amount of precipitation.
Of the 75 places in Vietnam covered by World Climates, Chũ is the 68th warmest by annual mean temperature and the 44th wettest by annual precipitation. See all of them on the Vietnam climate page.
Places in other countries with the most similar temperature and rainfall pattern: Lianjiang (China, Cwa), Fangchenggang (China, Cwa) and Beihai (China, Cwa).
Nearby places
- Bắc Giang 40 km · 24 °C74 °F · 1,549 mm61 in
- Hải Dương 54 km · 24 °C75 °F · 1,616 mm64 in
- Bắc Ninh 55 km · 24 °C75 °F · 1,616 mm64 in
- Lạng Sơn 57 km · 22 °C71 °F · 1,350 mm53 in
- Haiphong 58 km · 24 °C75 °F · 1,643 mm65 in
- Hạ Long 71 km · 24 °C75 °F · 1,643 mm65 in
- Gia Lâm 76 km · 24 °C75 °F · 1,616 mm64 in
- Thái Nguyên 78 km · 24 °C74 °F · 1,572 mm62 in
Frequently asked questions
What is the warmest month in Chũ?
June is the warmest month in Chũ, with an average high of 32 °C (89 °F) and an average low of 26 °C (78 °F).
What is the coldest month in Chũ?
January is the coldest month, with an average high of 21 °C (69 °F) and an average low of 10 °C (50 °F).
When does it rain the most in Chũ?
August is the wettest month with about 290 mm (11.4 in) of precipitation; February is the driest with about 26 mm (1.0 in).
What is the best time to visit Chũ?
Judging by long-term averages, the most comfortable months are November–March.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 283 m, while Chũ lies at about 18 m. Temperatures on this page were therefore adjusted by +1.7 °C3.1 °F using the standard lapse rate of 6.5 °C per 1,000 m.