Last updated: March 2, 2024
The weather in Oakland, United States, during September is characterized by an average temperature of 27°C (81°F). Highs can soar to 34°C (93°F), while lows may dip to 21°C (70°F). Typically, the humidity level in Oakland throughout September hovers around 83%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Oakland averages 183 mm (7.2 inches) of rainfall, typically over the course of 19 rainy days. The month enjoys an average of 12 hours 17 minutes of daylight, with the sun shining for approximately 10 hours 3 minutes each day. Additionally, there is a 30% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Oakland reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 0 | 1 | 2 | 4 | 7 | 10 | 11 | 10 | 9 | 6 | 3 | 1 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||