Last updated: March 2, 2024
The weather in Belfast, United Kingdom, during August is characterized by an average temperature of 15°C (59°F). Highs can soar to 21°C (70°F), while lows may dip to 8°C (47°F). Typically, the humidity level in Belfast throughout August hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In August, Belfast averages 115 mm (4.5 inches) of rainfall, typically over the course of 19 rainy days. The month enjoys an average of 14 hours 47 minutes of daylight, with the sun shining for approximately 11 hours 15 minutes each day. Additionally, there is a 21% 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 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 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 | 2 | 3 | 5 | 6 | 6 | 6 | 6 | 5 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||