Click on a day for an hourly weather forecast
The weather in Lancaster in September is hot. The average temperatures are between 16°C and 30°C. Usually the days in September are hot while the nights are a bit cooler.
There shouldn't be any rainy days in in Lancaster during September. Having said that, the days are very hot in September so hanging out outside is more recomanded during the after noons and evening time.
Our weather forecast can give you a great sense of what weather to expect in Lancaster in September 2025.
If you’re planning to visit Lancaster in the near future, we highly recommend that you review the 14 day weather forecast for Lancaster before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 4° | 3 | 27 | 1 | 53 mm | Good | Lancaster in January |
| February | 14° / 4° | 2 | 24 | 2 | 46 mm | Ok | Lancaster in February |
| March | 17° / 6° | 2 | 28 | 1 | 34 mm | Good | Lancaster in March |
| April | 20° / 8° | 1 | 28 | 0 | 25 mm | Good | Lancaster in April |
| May | 24° / 10° | 0 | 31 | 0 | 6 mm | Perfect | Lancaster in May |
| June | 29° / 15° | 0 | 30 | 0 | 3 mm | Good | Lancaster in June |
| July | 32° / 18° | 1 | 30 | 0 | 30 mm | Good | Lancaster in July |
| August | 32° / 18° | 0 | 31 | 0 | 14 mm | Good | Lancaster in August |
| September | 30° / 16° | 0 | 30 | 0 | 12 mm | Good | Lancaster in September |
| October | 23° / 12° | 1 | 30 | 0 | 24 mm | Perfect | Lancaster in October |
| November | 18° / 7° | 1 | 29 | 1 | 18 mm | Good | Lancaster in November |
| December | 12° / 3° | 3 | 27 | 1 | 63 mm | Ok | Lancaster in December |