Last updated: March 2, 2024
The weather in Grahamstown, South Africa, during December is characterized by an average temperature of 20°C (68°F). Highs can soar to 36°C (96°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Grahamstown throughout December hovers around 80%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Grahamstown averages 64 mm (2.5 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 14 hours 18 minutes of daylight, with the sun shining for approximately 12 hours 16 minutes each day. Additionally, there is a 29% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In December, the UV Index in Grahamstown reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 | 11 | 14 | 14 | 14 | 11 | 8 | 5 | 2 | 1 | 1 |
| 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 | ||||||