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The temperatures in Norrkoping in September are quite cold with temperatures between 9°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Norrkoping 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 Norrkoping in September 2025.
If you’re planning to visit Norrkoping in the near future, we highly recommend that you review the 14 day weather forecast for Norrkoping before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 0° / -4° | 4 | 12 | 16 | 37 mm | Awful | Norrkoping in January |
| February | 1° / -4° | 3 | 11 | 14 | 32 mm | Awful | Norrkoping in February |
| March | 5° / -1° | 5 | 16 | 10 | 33 mm | Awful | Norrkoping in March |
| April | 11° / 2° | 4 | 22 | 4 | 29 mm | Bad | Norrkoping in April |
| May | 16° / 6° | 4 | 26 | 1 | 52 mm | Good | Norrkoping in May |
| June | 20° / 10° | 4 | 26 | 0 | 61 mm | Good | Norrkoping in June |
| July | 23° / 13° | 6 | 25 | 0 | 85 mm | Perfect | Norrkoping in July |
| August | 21° / 12° | 5 | 26 | 0 | 68 mm | Good | Norrkoping in August |
| September | 17° / 9° | 4 | 26 | 0 | 41 mm | Good | Norrkoping in September |
| October | 10° / 5° | 5 | 25 | 1 | 48 mm | Ok | Norrkoping in October |
| November | 5° / 2° | 5 | 20 | 5 | 45 mm | Awful | Norrkoping in November |
| December | 1° / -2° | 5 | 14 | 12 | 43 mm | Awful | Norrkoping in December |