The temperatures in Somerset West in September are quite cold with temperatures between 8°C and 18°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Somerset West during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Somerset West in September 2025.
If you’re planning to visit Somerset West in the near future, we highly recommend that you review the 14 day weather forecast for Somerset West before you arrive.