Average temperature in September is 25.5 °C
Average daytime temperature is 26.1 °C
Average night temperature is 24.6 °C
Absolute maximum temperature: 26.9 °C
Absolute minimum temperature: 23.1 °C
Number of sunny days: 3
Number of rainy days: 27
Number of snow days:
Precipitation sum: 72 mm
* Weather data for Pago Pago American Samoa 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 | 26 | 25.8 | 25.9 | 26 | 26.3 | 26.5 | 26.9 | 25.9 | 26.3 | 25.7 | 26.1 | 25.7 | 26.3 | 25.5 | 26.7 | 26.5 | 26.9 | 25.9 | 25.6 | 26.4 | 25.2 | 25.7 | 25.9 | 26.2 | 25.6 | 26.2 | 26.6 | 26.7 | 26.4 | 26.2 |
| Apparent max temperature | 26.8 | 26.6 | 28.3 | 26.8 | 27.9 | 28.4 | 29.2 | 29.3 | 30 | 30.3 | 30.1 | 28.8 | 30 | 28.2 | 27.2 | 28.5 | 29.2 | 27.7 | 24.8 | 25.7 | 24.6 | 25.8 | 24 | 24.1 | 25.4 | 27.1 | 29 | 30.5 | 31.2 | 30.3 |
| Mean temperature | 25.4 | 25.4 | 25.7 | 25.3 | 25.9 | 26.1 | 24.9 | 24.9 | 25.4 | 25.1 | 25.7 | 25.3 | 25.6 | 25 | 26 | 26.3 | 25.6 | 25.3 | 25 | 25.4 | 24.9 | 25.1 | 24.7 | 25.4 | 25 | 25.5 | 26.1 | 26 | 25.9 | 25.7 |
| Apparent mean temperature | 23.9 | 24.6 | 25.5 | 24.6 | 25.7 | 25.9 | 24.5 | 25.6 | 27.2 | 27.8 | 26.3 | 25.3 | 25.6 | 25 | 25.1 | 26.1 | 25.9 | 24 | 22.4 | 22.9 | 22.9 | 22.4 | 21.5 | 21.9 | 23.3 | 24.7 | 25.6 | 27.3 | 27.6 | 27.1 |
| Minimum temperature | 24.3 | 24.6 | 25.1 | 24.7 | 25.5 | 24.8 | 23.1 | 24 | 23.7 | 24.4 | 24.9 | 24.5 | 24.7 | 23.9 | 24.9 | 26.1 | 24.8 | 24.6 | 24.4 | 24.5 | 24.4 | 24.3 | 23.8 | 24.3 | 23.8 | 24.8 | 25.3 | 25 | 24.8 | 24.7 |
| Apparent min temperature | 25 | 25.2 | 26.5 | 25.7 | 26.4 | 27.3 | 26.2 | 26.4 | 28.2 | 28.8 | 27.7 | 26.4 | 27.3 | 25.9 | 26.2 | 26.9 | 26.7 | 25.2 | 23.4 | 23.8 | 23.5 | 23.5 | 22.4 | 23.1 | 24.2 | 25.5 | 26.5 | 28.3 | 29.2 | 28.3 |
| 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) | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 |
| Sunshine duration (h) | 10 | 10.8 | 11 | 11 | 11 | 11 | 7.3 | 11 | 11 | 10.8 | 11.1 | 11.1 | 11 | 11.1 | 10.6 | 11.2 | 11.1 | 11.1 | 11.2 | 11.3 | 8.2 | 10.8 | 11.2 | 11.4 | 11.4 | 11.4 | 11.3 | 11.5 | 11.5 | 11.5 |
| Precipitation (mm) | 1.1 | 0.2 | 0.4 | 2.6 | 0.5 | 0.2 | 13.7 | 3.3 | 1.8 | 1.5 | 1.6 | 3.4 | 2.1 | 6.6 | 2.8 | 0.2 | 4.1 | 10.5 | 2.6 | 0.2 | 2.3 | 2 | 4.6 | 0 | 1.9 | 0.8 | 0 | 0 | 0.2 | 1 |
| Precipitation hours | 6 | 2 | 3 | 16 | 4 | 2 | 18 | 18 | 8 | 8 | 8 | 17 | 9 | 17 | 15 | 2 | 17 | 22 | 17 | 2 | 13 | 14 | 19 | 0 | 13 | 6 | 0 | 0 | 2 | 7 |
| Wind speed (m/s) | 37.8 | 31.3 | 32.2 | 35 | 30.9 | 28.7 | 26.5 | 25.6 | 17.6 | 14 | 29.1 | 30.5 | 30.9 | 32.1 | 34.8 | 36 | 34.6 | 39.5 | 44.3 | 40.6 | 42.4 | 45 | 50.4 | 47.7 | 41.8 | 34.6 | 28.9 | 22 | 20.8 | 22.8 |
In September 2023, the highest daytime temperature in Pago Pago was 26.9°C.
While the minimum temperature at night dropped to 23.1°C.
The average nighttime and daytime temperatures during September in Pago Pago are 24.6°C and 26.1°C respectively.
The precipitation sum in September is about 72 mm.