Click on a day for an hourly weather forecast
The temperatures in Laconia in September are comfortable with low of 11°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Laconia 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 Laconia in September 2025.
If you’re planning to visit Laconia in the near future, we highly recommend that you review the 14 day weather forecast for Laconia before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -10° | 9 | 16 | 6 | 86 mm | Awful | Laconia in January |
| February | -1° / -10° | 8 | 12 | 8 | 90 mm | Awful | Laconia in February |
| March | 4° / -5° | 8 | 17 | 6 | 92 mm | Awful | Laconia in March |
| April | 11° / 1° | 8 | 20 | 2 | 120 mm | Awful | Laconia in April |
| May | 19° / 7° | 7 | 24 | 0 | 87 mm | Ok | Laconia in May |
| June | 23° / 12° | 9 | 21 | 0 | 117 mm | Good | Laconia in June |
| July | 27° / 16° | 9 | 22 | 0 | 122 mm | Good | Laconia in July |
| August | 26° / 15° | 8 | 23 | 0 | 102 mm | Good | Laconia in August |
| September | 22° / 11° | 6 | 24 | 0 | 91 mm | Good | Laconia in September |
| October | 14° / 6° | 8 | 23 | 0 | 137 mm | Ok | Laconia in October |
| November | 7° / -1° | 7 | 21 | 2 | 97 mm | Awful | Laconia in November |
| December | 1° / -5° | 9 | 15 | 7 | 126 mm | Awful | Laconia in December |