Climate averages 1991–2020
Vĩnh Long weather
in September.
A hot, very wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Vĩnh Long: daytime highs average 30.1°C and nights cool to about 24.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 278 mm of rain on roughly 28 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average September day.
The nearest other city in this atlas is Cai Lậy (23 km away). In September its highs average 30.2°C, about as warm as Vĩnh Long, with 281 mm of rain.
Among the 136 cities listed in Vietnam, Vĩnh Long ranks joint 57th of 136 for the warmest September highs and joint 80th of 136 for the driest September (rainfall, lowest first). The mean September high of those 136 cities is 29.7°C; Vĩnh Long is 0.4°C warmer than that mean.
From September to October, average highs fall by 0.1°C to 30.0°C, and monthly rainfall rises from 278 mm to 281 mm.
The annual picture
September 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
Vĩnh Long climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.0°C22.3°C | 22.3°C | 26 | 4.2 | 11.612 h |
| February | 31.5°C22.8°C | 22.8°C | 7.9 | 1.7 | 11.812 h |
| March | 33.0°C24.2°C | 24.2°C | 29 | 4.7 | 12.112 h |
| April | 33.4°C25.1°C | 25.1°C | 73 | 11.8 | 12.312 h |
| May | 32.1°C25.4°C | 25.4°C | 196 | 24.9 | 12.613 h |
| June | 30.6°C24.9°C | 24.9°C | 241 | 27.0 | 12.713 h |
| July | 30.0°C24.6°C | 24.6°C | 245 | 28.0 | 12.713 h |
| August | 30.2°C24.5°C | 24.5°C | 250 | 28.9 | 12.512 h |
| September, selected | 30.1°C24.3°C | 24.3°C | 278 | 28.1 | 12.212 h |
| October | 30.0°C23.8°C | 23.8°C | 281 | 27.1 | 11.912 h |
| November | 30.0°C23.5°C | 23.5°C | 140 | 17.2 | 11.712 h |
| December | 29.6°C22.6°C | 22.6°C | 70 | 9.5 | 11.512 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
September in nearby cities
- Cai Lậy in SeptemberVietnam · 23 kmHigh 30.2°C · Low 24.2°C · 281 mm rain
- Sa Dec in SeptemberVietnam · 24 kmHigh 30.2°C · Low 24.4°C · 267 mm rain
- Quận Đức Thịnh in SeptemberVietnam · 26 kmHigh 30.3°C · Low 24.4°C · 267 mm rain
- Bình Minh in SeptemberVietnam · 26 kmHigh 29.9°C · Low 24.3°C · 263 mm rain
- Cần Thơ in SeptemberVietnam · 31 kmHigh 29.8°C · Low 24.3°C · 263 mm rain
- Bình Thủy in SeptemberVietnam · 32 kmHigh 29.9°C · Low 24.3°C · 263 mm rain
- Ô Môn in SeptemberVietnam · 41 kmHigh 30.0°C · Low 24.3°C · 275 mm rain
- Lai Vung in SeptemberVietnam · 41 kmHigh 30.2°C · Low 24.5°C · 265 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 Vĩnh Long) is explained once on the Vĩnh Long year overview and on the Sources, method and limits page.