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Moncton Weather by Month
Average temperatures, rainfall and humidity for Moncton, Canada, month by month, built from OpenWeather's historical records. Use it to see what a typical Moncton month looks like before you travel — then check the live Moncton forecast for the days ahead.
Warmest month
August
24°C average high
Coolest month
February
-6°C average low
Wettest month
November
53 mm of rain
Driest month
February
31 mm of rain
Average temperature and rainfall in Moncton by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 1°C | -6°C | -20°C / 15°C | 41 mm | 83% | 18 km/h |
| February | 1°C | -6°C | -24°C / 13°C | 31 mm | 81% | 18 km/h |
| March | 4°C | -3°C | -20°C / 16°C | 42 mm | 78% | 18 km/h |
| April | 9°C | 1°C | -9°C / 20°C | 48 mm | 78% | 17 km/h |
| May | 14°C | 6°C | -1°C / 31°C | 44 mm | 77% | 14 km/h |
| June | 20°C | 11°C | -1°C / 33°C | 50 mm | 79% | 13 km/h |
| July | 24°C | 16°C | 10°C / 33°C | 37 mm | 81% | 11 km/h |
| August | 24°C | 16°C | 8°C / 32°C | 34 mm | 80% | 11 km/h |
| September | 21°C | 12°C | 2°C / 30°C | 45 mm | 81% | 13 km/h |
| October | 15°C | 8°C | -3°C / 28°C | 49 mm | 83% | 15 km/h |
| November | 9°C | 2°C | -12°C / 21°C | 53 mm | 83% | 18 km/h |
| December | 4°C | -3°C | -19°C / 15°C | 50 mm | 84% | 17 km/h |
Best time to visit Moncton
The most comfortable time to visit Moncton is generally July to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rainfall is spread evenly across the months, totalling about 523 mm a year.
Travellers who prefer heat should aim for August, when highs average 24°C. November is the month to avoid if rain would spoil your plans — it averages 53 mm, roughly 2× the rainfall of February.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Moncton forecast for what is happening now.