Click on a day for an hourly weather forecast
The weather in Robertson in September is very cold with temperatures between 4°C and 20°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Robertson 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 Robertson in September 2025.
If you’re planning to visit Robertson in the near future, we highly recommend that you review the 14 day weather forecast for Robertson before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 28° / 12° | 2 | 29 | 0 | 33 mm | Perfect | Robertson in January |
| February | 29° / 13° | 1 | 27 | 0 | 19 mm | Good | Robertson in February |
| March | 28° / 12° | 2 | 30 | 0 | 26 mm | Perfect | Robertson in March |
| April | 24° / 9° | 3 | 28 | 0 | 40 mm | Perfect | Robertson in April |
| May | 21° / 6° | 3 | 28 | 0 | 58 mm | Good | Robertson in May |
| June | 17° / 4° | 6 | 24 | 0 | 137 mm | Good | Robertson in June |
| July | 17° / 3° | 4 | 27 | 0 | 95 mm | Good | Robertson in July |
| August | 17° / 3° | 5 | 26 | 0 | 81 mm | Good | Robertson in August |
| September | 20° / 4° | 3 | 27 | 0 | 47 mm | Good | Robertson in September |
| October | 23° / 6° | 2 | 29 | 0 | 37 mm | Perfect | Robertson in October |
| November | 24° / 8° | 2 | 28 | 0 | 44 mm | Perfect | Robertson in November |
| December | 26° / 10° | 1 | 30 | 0 | 28 mm | Perfect | Robertson in December |