Climate averages 1991–2020
Hoa Lư weather
in September.
A hot, very wet month: the 5th 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 Hoa Lư: daytime highs average 30.0°C and nights cool to about 24.2°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 289 mm of rain on roughly 21 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 16 min on an average September day.
The nearest other city in this atlas is Nam Định (28 km away). In September its highs average 30.0°C, about as warm as Hoa Lư, with 277 mm of rain.
Among the 136 cities listed in Vietnam, Hoa Lư ranks joint 65th of 136 for the warmest September highs and joint 85th of 136 for the driest September (rainfall, lowest first). The mean September high of those 136 cities is 29.7°C; Hoa Lư is 0.3°C warmer than that mean.
From September to October, average highs fall by 2.0°C to 27.9°C, and monthly rainfall falls from 289 mm to 154 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
Hoa Lư climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.1°C14.0°C | 14.0°C | 30 | 6.3 | 11.111 h |
| February | 22.0°C15.6°C | 15.6°C | 18 | 4.5 | 11.511 h |
| March | 24.9°C18.4°C | 18.4°C | 36 | 6.8 | 12.012 h |
| April | 28.6°C21.9°C | 21.9°C | 67 | 8.6 | 12.613 h |
| May | 31.2°C24.7°C | 24.7°C | 185 | 15.9 | 13.113 h |
| June | 32.8°C26.6°C | 26.6°C | 182 | 15.3 | 13.313 h |
| July | 32.6°C26.6°C | 26.6°C | 246 | 18.4 | 13.213 h |
| August | 31.4°C25.7°C | 25.7°C | 333 | 23.6 | 12.813 h |
| September, selected | 30.0°C24.2°C | 24.2°C | 289 | 21.1 | 12.312 h |
| October | 27.9°C21.7°C | 21.7°C | 154 | 14.2 | 11.712 h |
| November | 25.1°C18.3°C | 18.3°C | 62 | 8.6 | 11.211 h |
| December | 21.3°C14.6°C | 14.6°C | 28 | 5.5 | 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
September in nearby cities
- Nam Định in SeptemberVietnam · 28 kmHigh 30.0°C · Low 24.5°C · 277 mm rain
- Phủ Lý in SeptemberVietnam · 33 kmHigh 30.0°C · Low 24.0°C · 274 mm rain
- Hưng Yên in SeptemberVietnam · 44 kmHigh 30.1°C · Low 24.2°C · 254 mm rain
- Thanh Hóa in SeptemberVietnam · 56 kmHigh 29.8°C · Low 24.8°C · 289 mm rain
- Sầm Sơn in SeptemberVietnam · 59 kmHigh 29.5°C · Low 25.2°C · 368 mm rain
- Mỹ Hào in SeptemberVietnam · 74 kmHigh 30.4°C · Low 24.2°C · 248 mm rain
- Hải Dương in SeptemberVietnam · 84 kmHigh 30.2°C · Low 24.2°C · 243 mm rain
- Hanoi in SeptemberVietnam · 86 kmHigh 30.3°C · Low 24.1°C · 226 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 Hoa Lư) is explained once on the Hoa Lư year overview and on the Sources, method and limits page.