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The weather in Williamstown in January is very cold with temperatures between -2°C and 4°C, warm clothes are a must.
You can expect rain for roughly half of the month of January in Williamstown. 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.
You can expect a few days of snow in Williamstown during January. It’s important to get out your snow boots and warm mittens to stay warm while you explore Williamstown.
Our weather forecast can give you a great sense of what weather to expect in Williamstown in January 2025.
If you’re planning to visit Williamstown in the near future, we highly recommend that you review the 14 day weather forecast for Williamstown before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -2° | 8 | 20 | 3 | 84 mm | Awful | Williamstown in January |
| February | 6° / -2° | 8 | 17 | 3 | 97 mm | Awful | Williamstown in February |
| March | 11° / 2° | 8 | 21 | 2 | 115 mm | Awful | Williamstown in March |
| April | 17° / 8° | 7 | 23 | 0 | 102 mm | Ok | Williamstown in April |
| May | 22° / 13° | 8 | 23 | 0 | 100 mm | Ok | Williamstown in May |
| June | 27° / 18° | 10 | 20 | 0 | 121 mm | Good | Williamstown in June |
| July | 30° / 21° | 11 | 20 | 0 | 124 mm | Ok | Williamstown in July |
| August | 29° / 21° | 10 | 21 | 0 | 135 mm | Ok | Williamstown in August |
| September | 25° / 17° | 7 | 23 | 0 | 106 mm | Good | Williamstown in September |
| October | 19° / 11° | 7 | 24 | 0 | 135 mm | Ok | Williamstown in October |
| November | 12° / 5° | 5 | 25 | 0 | 82 mm | Ok | Williamstown in November |
| December | 8° / 1° | 7 | 23 | 1 | 126 mm | Bad | Williamstown in December |