Click on a day for an hourly weather forecast
The weather in Sibley in September is hot. The average temperatures are between 21°C and 31°C.
You can expect rain for roughly half of the month of September in Sibley. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Sibley in September 2025.
If you’re planning to visit Sibley in the near future, we highly recommend that you review the 14 day weather forecast for Sibley before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 5° | 7 | 23 | 0 | 145 mm | Ok | Sibley in January |
| February | 16° / 7° | 8 | 20 | 1 | 126 mm | Ok | Sibley in February |
| March | 21° / 11° | 8 | 23 | 0 | 154 mm | Ok | Sibley in March |
| April | 24° / 14° | 7 | 23 | 0 | 158 mm | Good | Sibley in April |
| May | 29° / 18° | 9 | 22 | 0 | 128 mm | Ok | Sibley in May |
| June | 32° / 22° | 11 | 19 | 0 | 103 mm | Ok | Sibley in June |
| July | 33° / 23° | 14 | 17 | 0 | 121 mm | Ok | Sibley in July |
| August | 33° / 23° | 14 | 17 | 0 | 142 mm | Ok | Sibley in August |
| September | 31° / 21° | 8 | 22 | 0 | 113 mm | Ok | Sibley in September |
| October | 26° / 15° | 6 | 25 | 0 | 98 mm | Perfect | Sibley in October |
| November | 20° / 10° | 5 | 25 | 0 | 107 mm | Good | Sibley in November |
| December | 16° / 8° | 7 | 24 | 0 | 144 mm | Ok | Sibley in December |