January Weather in Newcastle

Last updated: March 2, 2024

The weather in Newcastle, South Africa, during January is characterized by an average temperature of 21°C (70°F). Highs can soar to 33°C (92°F), while lows may dip to 12°C (54°F). Typically, the humidity level in Newcastle throughout January hovers around 79%.

12°C (54°F)

Minimum temperature

21°C (70°F)

Average temperature

33°C (92°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In January, Newcastle averages 117 mm (4.6 inches) of rainfall, typically over the course of 15 rainy days. The month enjoys an average of 13 hours 39 minutes of daylight, with the sun shining for approximately 9 hours 30 minutes each day. Additionally, there is a 24% probability of sunny days during this period.

117 mm (4.6 inches)

Precipitation

15 rainy days

Rainy days

9 hours 30 minutes

Sunshine hours

24%

Chance of sun

UV Index

In January, the UV Index in Newcastle reaches a maximum of 15, 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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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 14 15 14 12 8 4 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

Compare Newcastle's Climate with Cities Worldwide