Yên Bái climate
Yên Bái (Vietnam) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 24 °C76 °F, and about 1,539 mm61 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Yên Bái climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2170 | 1152 | 1661 | 321.3 |
| Feb | 2577 | 1356 | 1966 | 220.9 |
| Mar | 2883 | 1762 | 2373 | 502.0 |
| Apr | 3290 | 2170 | 2780 | 893.5 |
| May | 3392 | 2475 | 2984 | 1746.9 |
| Jun | 3493 | 2678 | 3086 | 2038.0 |
| Jul | 3392 | 2679 | 3085 | 29412 |
| Aug | 3290 | 2678 | 2984 | 31813 |
| Sep | 3188 | 2475 | 2882 | 1837.2 |
| Oct | 2883 | 2170 | 2576 | 1034.0 |
| Nov | 2578 | 1762 | 2170 | 441.7 |
| Dec | 2171 | 1254 | 1762 | 261.0 |
| Year | 3493 | 1152 | 2476 | 1,53961 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 79% | 71% | 2.6 | 10:56 |
| Feb | 77% | 67% | 3.2 | 11:24 |
| Mar | 75% | 72% | 3.6 | 11:58 |
| Apr | 73% | 74% | 4.3 | 12:38 |
| May | 75% | 81% | 4.8 | 13:10 |
| Jun | 79% | 90% | 4.6 | 13:27 |
| Jul | 81% | 89% | 4.5 | 13:20 |
| Aug | 83% | 86% | 4.4 | 12:52 |
| Sep | 82% | 76% | 4.2 | 12:14 |
| Oct | 82% | 71% | 3.5 | 11:36 |
| Nov | 79% | 60% | 3.3 | 11:04 |
| Dec | 77% | 63% | 2.7 | 10:49 |
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 Yên Bái is like
The warmest month is June, with an average high of 34 °C93 °F and a low of 26 °C78 °F. The coldest is January, when highs average 21 °C70 °F and lows 11 °C52 °F. There is a clear seasonal cycle, with 13.7 °C24.6 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,539 mm61 in of precipitation per year. The wettest three-month stretch is June–August, which brings 53% of the annual total. The wettest month is August (318 mm13 in), the driest is February (22 mm0.9 in).
Relative humidity ranges from 73% in April to 83% in August. The clearest skies (lowest average cloud amount, 60%) are typical of November. Average wind speed near the ground ranges from 4 km/h (3 mph) in November to 6 km/h (4 mph) in March. Daylight lasts from about 10.8 hours in December to 13.4 hours in June.
Best time to visit Yên Bái
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 21 °C70 °F to 28 °C83 °F with 22 mm0.9 in to 50 mm2.0 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 32 °C90 °F, very wet (318 mm13 in) and humid (83% 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 Yên Bái
- Wetter months (May–September) — highs 3188 to 34 °C93 °F, lows 2475 to 26 °C79 °F, about 235 mm9.2 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 2170 to 32 °C90 °F, lows 1152 to 21 °C70 °F, about 52 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 Yên Bái compares
Compared with Tuyên Quang, about 33 km to the east, Yên Bái has practically the same average temperature and receives a similar amount of precipitation.
Of the 75 places in Vietnam covered by World Climates, Yên Bái is the 50th warmest by annual mean temperature and the 39th 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: Beihai (China, Cwa), Lianjiang (China, Cwa) and Maoming (China, Cfa).
Nearby places
- Tuyên Quang 33 km · 24 °C76 °F · 1,527 mm60 in
- Bắc Quang 85 km · 24 °C76 °F · 1,408 mm55 in
- Thái Nguyên 98 km · 24 °C74 °F · 1,572 mm62 in
- Thanh Xuân 123 km · 24 °C75 °F · 1,606 mm63 in
- Hanoi 124 km · 24 °C75 °F · 1,606 mm63 in
- Lào Cai 129 km · 25 °C78 °F · 1,601 mm63 in
- Thị Trấn Thuận Châu 130 km · 23 °C73 °F · 1,391 mm55 in
- Gia Lâm 132 km · 24 °C75 °F · 1,616 mm64 in
Frequently asked questions
What is the warmest month in Yên Bái?
June is the warmest month in Yên Bái, with an average high of 34 °C (93 °F) and an average low of 26 °C (78 °F).
What is the coldest month in Yên Bái?
January is the coldest month, with an average high of 21 °C (70 °F) and an average low of 11 °C (52 °F).
When does it rain the most in Yên Bái?
August is the wettest month with about 318 mm (12.5 in) of precipitation; February is the driest with about 22 mm (0.9 in).
What is the best time to visit Yên Bái?
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 183 m, while Yên Bái lies at about 45 m. Temperatures on this page were therefore adjusted by +0.9 °C1.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.