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The temperatures in Gatineau in May are quite cold with temperatures between 8°C and 18°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Gatineau. 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 Gatineau can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Gatineau in May 2025.
If you’re planning to visit Gatineau in the near future, we highly recommend that you review the 14 day weather forecast for Gatineau before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -7° / -14° | 5 | 5 | 22 | 89 mm | Awful | Gatineau in January |
| February | -5° / -13° | 5 | 3 | 21 | 85 mm | Awful | Gatineau in February |
| March | 1° / -6° | 8 | 8 | 16 | 85 mm | Awful | Gatineau in March |
| April | 9° / 1° | 11 | 13 | 7 | 122 mm | Awful | Gatineau in April |
| May | 18° / 8° | 8 | 23 | 1 | 116 mm | Ok | Gatineau in May |
| June | 22° / 12° | 7 | 23 | 0 | 129 mm | Ok | Gatineau in June |
| July | 25° / 15° | 6 | 25 | 0 | 129 mm | Perfect | Gatineau in July |
| August | 25° / 15° | 7 | 24 | 0 | 137 mm | Good | Gatineau in August |
| September | 21° / 10° | 5 | 25 | 0 | 102 mm | Good | Gatineau in September |
| October | 13° / 5° | 9 | 21 | 1 | 134 mm | Bad | Gatineau in October |
| November | 5° / -2° | 7 | 14 | 8 | 80 mm | Awful | Gatineau in November |
| December | -2° / -8° | 7 | 6 | 18 | 101 mm | Awful | Gatineau in December |