Last updated: March 2, 2024
The weather in Belfast, United States, during August is characterized by an average temperature of 20°C (68°F). Highs can soar to 30°C (86°F), while lows may dip to 9°C (48°F). Typically, the humidity level in Belfast throughout August hovers around 72%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In August, Belfast averages 84 mm (3.3 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 13 hours 48 minutes of daylight, with the sun shining for approximately 10 hours 37 minutes each day. Additionally, there is a 32% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In August, the UV Index in Belfast reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 | 1 | 1 | 3 | 5 | 7 | 8 | 9 | 9 | 7 | 5 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||