Climate Insights for Rooiberg

The climate in Rooiberg is warm and mild. The average annual temperature is 21°C and approximately 495mm of precipitation falls per year. December is the wettest month, receiving around 115mm of rainfall. Rooiberg is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: October, November, December. The coldest months are July, June, August, when temperatures can drop to 6°C.

Temperatures in Rooiberg vary considerably across the year, with a 25°C difference between the coldest and warmest months. The warmest month is October, when average highs reach 31°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 6°C and an average of 14°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 4°C shift in average temperatures.

Rooiberg is a relatively dry area, receiving approximately 495mm of precipitation annually, which averages out to around 41mm per month. The wettest month is December, averaging 115mm of rainfall. January and February also tend to see above-average precipitation. The driest month is August, with just 1mm. That's 114mm less than December, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Rooiberg is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months.

It is currently winter in Rooiberg, which began on June 21, 2026. Rooiberg is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in October at around 31°C, while the coldest stretch bottoms out in July near 6°C. Autumn is next, beginning on March 20, 2026 — 3 days from now.

The best time to visit Rooiberg is during January, February, March, April, May, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 41mm per month. By contrast, July can be quite cold with temperatures dropping to 6°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Rooiberg based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.