Climate averages 1991–2020
Sơn Tây weather
in April.
A hot, moderately wet month: the 6th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Sơn Tây: daytime highs average 28.9°C and nights cool to about 21.8°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 81 mm of rain on roughly 11 days, which makes April a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 37 min on an average April day.
The nearest other city in this atlas is Ba Vì (14 km away). In April its highs average 26.9°C, 2.0°C cooler than Sơn Tây, with 104 mm of rain.
Among the 136 cities listed in Vietnam, Sơn Tây ranks joint 89th of 136 for the warmest April highs and joint 67th of 136 for the driest April (rainfall, lowest first). The mean April high of those 136 cities is 30.6°C; Sơn Tây is 1.8°C cooler than that mean.
From April to May, average highs rise by 2.2°C to 31.1°C, and monthly rainfall rises from 81 mm to 201 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sơn Tây climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.4°C14.0°C | 14.0°C | 37 | 8.3 | 11.011 h |
| February | 21.6°C15.6°C | 15.6°C | 26 | 8.0 | 11.411 h |
| March | 24.9°C18.5°C | 18.5°C | 48 | 10.4 | 12.012 h |
| April, selected | 28.9°C21.8°C | 21.8°C | 81 | 10.7 | 12.613 h |
| May | 31.1°C24.3°C | 24.3°C | 201 | 17.4 | 13.113 h |
| June | 32.3°C25.9°C | 25.9°C | 215 | 18.2 | 13.413 h |
| July | 31.9°C25.9°C | 25.9°C | 251 | 20.5 | 13.313 h |
| August | 31.2°C25.4°C | 25.4°C | 311 | 22.0 | 12.913 h |
| September | 30.0°C24.2°C | 24.2°C | 201 | 17.8 | 12.312 h |
| October | 27.8°C21.9°C | 21.9°C | 100 | 10.5 | 11.712 h |
| November | 24.6°C18.5°C | 18.5°C | 48 | 6.7 | 11.111 h |
| December | 20.6°C14.7°C | 14.7°C | 29 | 6.5 | 10.911 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Ba Vì in AprilVietnam · 14 kmHigh 26.9°C · Low 19.8°C · 104 mm rain
- Vĩnh Yên in AprilVietnam · 21 kmHigh 28.6°C · Low 21.7°C · 81 mm rain
- Việt Trì in AprilVietnam · 23 kmHigh 28.6°C · Low 21.7°C · 81 mm rain
- Phúc Yên in AprilVietnam · 23 kmHigh 28.5°C · Low 21.5°C · 96 mm rain
- Bắc Từ Liêm in AprilVietnam · 26 kmHigh 28.7°C · Low 21.5°C · 100 mm rain
- Tây Hồ in AprilVietnam · 32 kmHigh 28.6°C · Low 21.5°C · 100 mm rain
- Hanoi in AprilVietnam · 37 kmHigh 28.8°C · Low 21.6°C · 100 mm rain
- Sóc Sơn in AprilVietnam · 38 kmHigh 28.5°C · Low 21.5°C · 96 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sơn Tây) is explained once on the Sơn Tây year overview and on the Sources, method and limits page.
Việt Trì and Vĩnh Yên lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.