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The temperatures in Newfoundland and Labrador in September are comfortable with low of 15°C and and high up to 17°C.
You can expect about 3 to 8 days of rain in Newfoundland and Labrador 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 Newfoundland and Labrador in September 2025.
If you’re planning to visit Newfoundland and Labrador in the near future, we highly recommend that you review the 14 day weather forecast for Newfoundland and Labrador before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 10° / 7° | 10 | 21 | 1 | 146 mm | Bad | Newfoundland and Labrador in January |
| February | 9° / 7° | 9 | 19 | 1 | 110 mm | Bad | Newfoundland and Labrador in February |
| March | 10° / 7° | 6 | 25 | 0 | 81 mm | Ok | Newfoundland and Labrador in March |
| April | 11° / 9° | 5 | 25 | 0 | 60 mm | Ok | Newfoundland and Labrador in April |
| May | 13° / 10° | 4 | 28 | 0 | 57 mm | Ok | Newfoundland and Labrador in May |
| June | 15° / 13° | 4 | 26 | 0 | 70 mm | Good | Newfoundland and Labrador in June |
| July | 17° / 15° | 5 | 26 | 0 | 67 mm | Good | Newfoundland and Labrador in July |
| August | 17° / 15° | 5 | 26 | 0 | 91 mm | Good | Newfoundland and Labrador in August |
| September | 17° / 15° | 5 | 25 | 0 | 77 mm | Good | Newfoundland and Labrador in September |
| October | 15° / 13° | 8 | 23 | 0 | 143 mm | Ok | Newfoundland and Labrador in October |
| November | 13° / 11° | 10 | 20 | 0 | 172 mm | Bad | Newfoundland and Labrador in November |
| December | 11° / 9° | 10 | 21 | 0 | 165 mm | Bad | Newfoundland and Labrador in December |
For a more accurate weather forecast please select a city