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The weather in Siegburg in January is very cold with temperatures between 0°C and 5°C, warm clothes are a must.
You can expect rain for roughly half of the month of January in Siegburg. 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.
Please note that Siegburg can expect a few days of snow in January.
Our weather forecast can give you a great sense of what weather to expect in Siegburg in January 2026.
If you’re planning to visit Siegburg in the near future, we highly recommend that you review the 14 day weather forecast for Siegburg before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 0° | 11 | 17 | 2 | 85 mm | Awful | Siegburg in January |
| February | 6° / 0° | 9 | 18 | 1 | 65 mm | Awful | Siegburg in February |
| March | 11° / 2° | 8 | 22 | 1 | 64 mm | Bad | Siegburg in March |
| April | 15° / 5° | 7 | 23 | 0 | 47 mm | Good | Siegburg in April |
| May | 18° / 8° | 9 | 22 | 0 | 71 mm | Ok | Siegburg in May |
| June | 22° / 12° | 8 | 22 | 0 | 78 mm | Ok | Siegburg in June |
| July | 24° / 14° | 9 | 22 | 0 | 87 mm | Good | Siegburg in July |
| August | 24° / 14° | 10 | 21 | 0 | 91 mm | Good | Siegburg in August |
| September | 20° / 11° | 7 | 23 | 0 | 62 mm | Ok | Siegburg in September |
| October | 15° / 8° | 8 | 23 | 0 | 71 mm | Ok | Siegburg in October |
| November | 10° / 4° | 9 | 21 | 0 | 77 mm | Bad | Siegburg in November |
| December | 6° / 2° | 12 | 17 | 2 | 98 mm | Awful | Siegburg in December |