Canada
Montreal in May: weather & travel advice
This month's data profile
Rain shapes the decision
Montreal in May is climatically well suited to city breaks and active holidays and hiking. The average daily high is around 18 °C. With about 14 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
62/100 · #5
Warmth
#5
Dryness
#8
Sun
#3
Published best categories: City break, Active
Montreal · MayPhoto: Ken Lund from Reno, Nevada, USA · CC BY-SA 2.0Climate facts
- Average high
- 18 °C
- Average low
- 8 °C
- Rainy days (est.)
- 14 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 78 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| April | 10 | 0 | 13 | 92 | 5.6 | 80 | 3.5 | 41 |
| May (selected) | 18 | 8 | 14 | 84 | 6.6 | 78 | 3.0 | 62 |
| June | 23 | 13 | 15 | 100 | 7.2 | 78 | 2.8 | 70 |
How do the previous and next months compare?
Baseline: May (62/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| April | -21 | -7.9 °C | -7.2 °C | -1 | +7.9 mm | -1 h | +2.2 % | +0.5 m/s |
| June | +8 | +5 °C | +5.9 °C | +1.3 | +15.8 mm | +0.6 h | -0.3 % | -0.3 m/s |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Montreal in May?
The average daily high is around 18 °C, with an average daily low of about 8 °C.
Does it rain a lot in Montreal in May?
The curated estimate is about 14 rainy days per month, not a directly measured long-term average. Total precipitation averages around 84 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Montreal?
By the climate score, June, July, August and September are the strongest months for Montreal. May is not among them.