Climate Insights for Somerset West

The climate in Somerset West is temperate. The average annual temperature is 12°C and approximately 131mm of precipitation falls per year. September is the wettest month, receiving around 33mm of rainfall. Somerset West 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, June. The coldest months are August, July, April, when temperatures can drop to -3°C. Light snow can occur between July and September.

Temperatures in Somerset West vary considerably across the year, with a 30°C difference between the coldest and warmest months. The warmest month is October, when average highs reach 27°C and the mean temperature sits around 20°C. The coldest month is August, when overnight lows fall to -3°C and the daily average is 1°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 10°C shift in average temperatures.

Somerset West is a quite dry location, receiving approximately 131mm of precipitation annually, which averages out to around 11mm per month. The wettest month is January, averaging 33mm of rainfall. August and September also tend to see above-average precipitation. The driest month is March, with just 0mm. That's 33mm less than January, 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. Light snowfall can occur between July and September, totalling around 48cm annually. August is the snowiest month with approximately 33cm.

Somerset West is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 5km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently winter in Somerset West, which began on June 21, 2026. Somerset West 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 27°C, while the coldest stretch bottoms out in August near -3°C. Spring is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Somerset West is during June, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 3mm per month. By contrast, August can be quite cold with temperatures dropping to -3°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Somerset West 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.