Click on a day for an hourly weather forecast
The temperatures in Bo in September are quite cold with temperatures between 5°C and 14°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Bo. 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 Bo in September 2026.
If you’re planning to visit Bo in the near future, we highly recommend that you review the 14 day weather forecast for Bo before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -10° | 5 | 9 | 17 | 118 mm | Awful | Bo in January |
| February | -2° / -10° | 5 | 7 | 18 | 105 mm | Awful | Bo in February |
| March | 2° / -7° | 6 | 10 | 15 | 93 mm | Awful | Bo in March |
| April | 7° / -2° | 5 | 18 | 7 | 64 mm | Bad | Bo in April |
| May | 13° / 3° | 8 | 21 | 2 | 126 mm | Awful | Bo in May |
| June | 18° / 7° | 8 | 22 | 0 | 136 mm | Ok | Bo in June |
| July | 20° / 9° | 10 | 21 | 0 | 162 mm | Ok | Bo in July |
| August | 18° / 7° | 9 | 22 | 0 | 167 mm | Ok | Bo in August |
| September | 14° / 5° | 8 | 22 | 0 | 154 mm | Ok | Bo in September |
| October | 8° / 0° | 10 | 18 | 3 | 168 mm | Awful | Bo in October |
| November | 2° / -4° | 10 | 9 | 11 | 158 mm | Awful | Bo in November |
| December | -2° / -8° | 8 | 7 | 16 | 145 mm | Awful | Bo in December |