Climate averages 1991–2020
Tân An weather
in September.
A hot, very wet month: the joint 8th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Tân An: daytime highs average 30.3°C and nights cool to about 24.1°C. By daytime temperature it is the joint 8th warmest of the 12 months.
Expect about 294 mm of rain on roughly 28 days, which makes September a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average September day.
The nearest other city in this atlas is Mỹ Tho (20 km away). In September its highs average 30.1°C, about as warm as Tân An, with 282 mm of rain.
Among the 136 cities listed in Vietnam, Tân An ranks joint 28th of 136 for the warmest September highs and joint 98th of 136 for the driest September (rainfall, lowest first). The mean September high of those 136 cities is 29.7°C; Tân An is 0.6°C warmer than that mean.
From September to October, average highs fall by 0.3°C to 30.0°C, and monthly rainfall falls from 294 mm to 287 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
Tân An climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.4°C22.4°C | 22.4°C | 28 | 4.2 | 11.612 h |
| February | 31.6°C23.0°C | 23.0°C | 11 | 2.0 | 11.812 h |
| March | 32.9°C24.3°C | 24.3°C | 25 | 4.5 | 12.112 h |
| April | 33.4°C25.3°C | 25.3°C | 70 | 11.9 | 12.412 h |
| May | 32.4°C25.3°C | 25.3°C | 194 | 24.5 | 12.613 h |
| June | 30.9°C24.8°C | 24.8°C | 237 | 27.3 | 12.713 h |
| July | 30.3°C24.4°C | 24.4°C | 238 | 29.0 | 12.713 h |
| August | 30.4°C24.4°C | 24.4°C | 260 | 28.9 | 12.512 h |
| September, selected | 30.3°C24.1°C | 24.1°C | 294 | 28.1 | 12.212 h |
| October | 30.0°C23.5°C | 23.5°C | 287 | 27.3 | 11.912 h |
| November | 30.0°C23.3°C | 23.3°C | 139 | 16.7 | 11.712 h |
| December | 29.8°C22.6°C | 22.6°C | 70 | 9.8 | 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
- Mỹ Tho in SeptemberVietnam · 20 kmHigh 30.1°C · Low 24.1°C · 282 mm rain
- Cần Giuộc in SeptemberVietnam · 29 kmHigh 30.3°C · Low 24.4°C · 297 mm rain
- Bến Tre in SeptemberVietnam · 33 kmHigh 30.0°C · Low 24.3°C · 302 mm rain
- Gò Công in SeptemberVietnam · 33 kmHigh 30.0°C · Low 24.7°C · 242 mm rain
- Quận Sáu in SeptemberVietnam · 35 kmHigh 30.5°C · Low 24.1°C · 295 mm rain
- Cai Lậy in SeptemberVietnam · 36 kmHigh 30.2°C · Low 24.2°C · 281 mm rain
- Quận Mười in SeptemberVietnam · 38 kmHigh 30.2°C · Low 24.1°C · 295 mm rain
- Ho Chi Minh City in SeptemberVietnam · 40 kmHigh 30.4°C · Low 24.1°C · 295 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 Tân An) is explained once on the Tân An year overview and on the Sources, method and limits page.