Click on a day for an hourly weather forecast
The temperatures in New Brunswick in May 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 May in New Brunswick. 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 New Brunswick can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in New Brunswick in May 2025.
If you’re planning to visit New Brunswick in the near future, we highly recommend that you review the 14 day weather forecast for New Brunswick before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -4° / -11° | 6 | 5 | 21 | 135 mm | Awful | New Brunswick in January |
| February | -4° / -11° | 6 | 3 | 21 | 143 mm | Awful | New Brunswick in February |
| March | 0° / -6° | 7 | 6 | 19 | 118 mm | Awful | New Brunswick in March |
| April | 7° / 0° | 10 | 11 | 9 | 120 mm | Awful | New Brunswick in April |
| May | 14° / 5° | 9 | 22 | 1 | 128 mm | Ok | New Brunswick in May |
| June | 20° / 10° | 8 | 22 | 0 | 152 mm | Ok | New Brunswick in June |
| July | 24° / 14° | 7 | 24 | 0 | 128 mm | Good | New Brunswick in July |
| August | 24° / 14° | 6 | 25 | 0 | 112 mm | Perfect | New Brunswick in August |
| September | 19° / 10° | 5 | 25 | 0 | 106 mm | Good | New Brunswick in September |
| October | 12° / 5° | 8 | 22 | 2 | 138 mm | Awful | New Brunswick in October |
| November | 6° / 0° | 8 | 13 | 9 | 151 mm | Awful | New Brunswick in November |
| December | 0° / -6° | 8 | 8 | 16 | 158 mm | Awful | New Brunswick in December |
For a more accurate weather forecast please select a city