Average temperature in September is 27.2 °C
Average daytime temperature is 30.3 °C
Average night temperature is 24.6 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: 23.2 °C
Number of sunny days:
Number of rainy days: 30
Number of snow days:
Precipitation sum: 354 mm
* Weather data for Haiphong Vietnam is based on climate observations for 2023 year
| September (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 32.3 | 33.7 | 28.3 | 30.6 | 32.6 | 32.6 | 33.5 | 32.3 | 30.8 | 31.3 | 29.4 | 29.6 | 28.3 | 27.5 | 28.3 | 27.7 | 28.5 | 29.7 | 30.4 | 31.1 | 31.8 | 31.3 | 31.5 | 30.6 | 30.9 | 27.2 | 27.6 | 28 | 29.7 | 31.5 |
| Apparent max temperature | 37.9 | 38.3 | 30.4 | 35.2 | 40.2 | 40 | 41.5 | 39.4 | 38 | 39.8 | 36 | 36 | 32.7 | 31.8 | 33 | 32.7 | 33.9 | 36.3 | 37.5 | 38.5 | 38.8 | 39.7 | 38.8 | 37.7 | 36.6 | 32.5 | 32.1 | 33.1 | 36.1 | 40.7 |
| Mean temperature | 28.6 | 29.5 | 25.6 | 26.6 | 28 | 29.1 | 29.1 | 27.9 | 27.1 | 27 | 27 | 26.8 | 26 | 24.9 | 25.6 | 25.9 | 26.5 | 27.1 | 27.9 | 28.4 | 28.5 | 28.1 | 28.1 | 27.4 | 27.6 | 25.5 | 25.8 | 25.7 | 26.5 | 27.4 |
| Apparent mean temperature | 30 | 29 | 27.3 | 27.5 | 30.6 | 31.9 | 28.1 | 30.3 | 29.8 | 29.4 | 31.1 | 29.4 | 27.7 | 26.4 | 27.6 | 29.3 | 29.8 | 31 | 31.4 | 31.5 | 31.8 | 31.2 | 30.6 | 27.7 | 28.9 | 27.7 | 28.9 | 29.5 | 28.9 | 29.8 |
| Minimum temperature | 26 | 25.6 | 23.7 | 23.9 | 25.7 | 26.5 | 24.4 | 24.7 | 24.6 | 24.1 | 25.2 | 24.9 | 24 | 23.2 | 23.7 | 23.9 | 24.5 | 25.3 | 25.8 | 25.9 | 25.2 | 25 | 24.9 | 23.3 | 24.7 | 23.7 | 24.1 | 24.1 | 24.1 | 24.3 |
| Apparent min temperature | 33.7 | 33.9 | 28.4 | 31.1 | 34.2 | 35.6 | 35.5 | 34.2 | 33.5 | 33.7 | 33.5 | 32.7 | 29.6 | 28.7 | 30.9 | 31.4 | 32 | 32.9 | 33.9 | 34.6 | 35 | 34.8 | 34 | 33.3 | 32.8 | 29.6 | 30.4 | 31 | 32.3 | 33.9 |
| September | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 | 12 |
| Sunshine duration (h) | 11.3 | 11.7 | 2.2 | 8.1 | 10.4 | 10.6 | 11.7 | 10.5 | 4.9 | 5.9 | 0.8 | 3.6 | 5.3 | 0.4 | 1 | 0 | 4.5 | 9.6 | 10.5 | 11.2 | 11.2 | 11.1 | 11.1 | 9.8 | 6.8 | 1.2 | 1.6 | 1.2 | 7.1 | 10.2 |
| Precipitation (mm) | 1.1 | 0.1 | 0.7 | 1.9 | 8.3 | 3.2 | 4.3 | 27.9 | 19.1 | 38 | 15.3 | 15.9 | 3.7 | 14.4 | 24.2 | 17.4 | 6.3 | 4 | 0.8 | 1.4 | 0.8 | 1.9 | 1.2 | 11.3 | 5.6 | 56.9 | 40 | 18.4 | 9.2 | 0.9 |
| Precipitation hours | 3 | 1 | 3 | 5 | 4 | 8 | 5 | 16 | 15 | 18 | 21 | 20 | 12 | 15 | 16 | 21 | 16 | 8 | 8 | 6 | 7 | 7 | 8 | 12 | 13 | 24 | 22 | 17 | 11 | 4 |
| Wind speed (m/s) | 13.2 | 16.2 | 21.3 | 14 | 18.4 | 10 | 18.4 | 14.4 | 10.1 | 11.6 | 8.4 | 13.5 | 21.3 | 11.3 | 11.2 | 15.6 | 12.7 | 11.5 | 14.2 | 12 | 11.8 | 9.1 | 12.2 | 11.7 | 15.2 | 19.8 | 19.5 | 13.6 | 10.1 | 7.9 |
In September 2023, the highest daytime temperature in Haiphong was 33.7°C.
While the minimum temperature at night dropped to 23.2°C.
The average nighttime and daytime temperatures during September in Haiphong are 24.6°C and 30.3°C respectively.
The precipitation sum in September is about 354 mm.