Last updated: March 2, 2024
The weather in Belfast, South Africa, during January is characterized by an average temperature of 18°C (65°F). Highs can soar to 28°C (82°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Belfast throughout January hovers around 70%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Belfast averages 120 mm (4.7 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 13 hours 31 minutes of daylight, with the sun shining for approximately 9 hours 52 minutes each day. Additionally, there is a 25% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Belfast reaches a maximum of 16, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 2 | 5 | 8 | 12 | 15 | 16 | 16 | 13 | 8 | 5 | 2 | 1 | 0 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 30 min | 45 min | ||||||