Planning a trip to Montreal in May? You are in luck! The weather is generally good, with an average maximum temperature of +68°F and approximately 7 sunny days. Just be prepared for some rain, as there are usually around 8 rainy days and 92 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+68°F
Avg. max. temperature
+27°F
Min.
+95°F
Max.
92 mm
Total precipitation
61%
Avg. humidity
3 m/s
Avg. wind
7 ☀️
Sunny Days
16 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: Montreal has good weather in May.
Average temperature in Montreal in May
Here are the expected maximum, average and minimum temperatures in Montreal for May based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in May is +72°F with a maximum of +90°F and a minimum of +37°F.
The average maximum temperature goes up 21% by the end of the month, compared with the beginning of the month, from +66°F to +77°F.
Is Montreal warm or cold in May?
Montreal is typically mild in May.
Maximum temperatures go up compared to the previous month from +54°F to +68°F. The minimum temperature also goes up from +36°F to +48°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Montreal:
Climate in Montreal in May
Montreal weather looks like this, on average, in May and the surrounding months.
April
May
June
Avg. temperature
+54°F
+68°F
+75°F
Min. temperature
+7°F
+27°F
+36°F
Max. temperature
+86°F
+95°F
+93°F
Rainfall
86 mm
92 mm
101 mm
Wind
4 m/s
3 m/s
3 m/s
Humidity
61%
61%
66%
Air pressure
1013 HPa
1013 HPa
1011 HPa
Sunny days
6
7
7
Cloudy days
15
16
14
Rainy days
7
8
9
Snowy days
2
0
0
May often has better weather than April.It’s getting warmer as May arrives. The average maximum temperature goes up from +54°F to +68°F during the day.Prepare for more rain. Average rainfall goes from 86 mm to 92 mm.Humidity levels don’t change as the month goes on, averaging around 61%.Winds are calmer in comparison to April, going down from 4 m/s to 3 m/s on average.The good news is there are likely to be more sunny days in May, from 6 to 7.
June brings much the same weather, it remains good.
Wind speed in Montreal in May based on historical data.
Last Year
Historical Data
The average wind speed is 4 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Montreal is gradually increasing during May, going from 2 m/s to 6 m/s over the course of the month.
Rain
Amount of rainfall in mm during May in Montreal based on historical data.
Last Year
Historical Data
Total precipitation in May is about 134 mm, with a 35% chance of rain on a typical day. The maximum amount of rainfall per day is around 35 mm, which is moderate rain.May is a pretty wet month with over 11 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Montreal wettest month is October, where a typical day has a 26% chance of precipitation and 104 mm of rainfall per day. February, on the other hand, is the driest month with a mere 3% chance of precipitation and 17 mm of rainfall per day.
How was the weather last May in Montreal?
This is the weather in Montreal in May 2023:
1 May
☀️
+67°F
2 May
☀️
+64°F
3 May
☁️
+65°F
4 May
🌧️
+63°F
5 May
☀️
+63°F
6 May
☀️
+60°F
7 May
☀️
+58°F
8 May
☀️
+65°F
9 May
☀️
+74°F
10 May
☀️
+78°F
11 May
☀️
+82°F
12 May
☀️
+88°F
13 May
☀️
+87°F
14 May
☀️
+89°F
15 May
🌧️
+82°F
16 May
🌫️
+75°F
17 May
🌧️
+65°F
18 May
☀️
+63°F
19 May
☁️
+59°F
20 May
🌫️
+79°F
21 May
☀️
+89°F
22 May
🌧️
+78°F
23 May
☀️
+61°F
24 May
☀️
+65°F
25 May
☀️
+74°F
26 May
🌧️
+73°F
27 May
🌧️
+72°F
28 May
☁️
+70°F
29 May
☀️
+78°F
30 May
☀️
+81°F
31 May
☁️
+77°F
In May 2023 Montreal had 19 sunny days, 4 cloudy days, and 6 rainy days. The average maximum temperature was +72°F, with an absolute maximum of +90°F and a minimum of +59°F. The average humidity was 58%, with a maximum of 96% and a minimum of 15%. The average wind speed was 4 m/s, with a maximum of 13 m/s and a minimum of 0 m/s.
Are you planning a trip in May?
Climate Change Over the Years
This is how Montreal climate has changed over the last 43 years.
The climate in Montreal in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1997 (+61°F) and the highest in 1998 (+76°F). The driest year was 1982 with only 27 mm of rainfall, and the wettest year was 1984 with 230 mm.
FAQ
Frequently asked questions about the weather in Montreal in May:
Is May a good time to visit Montreal?
May is a really good time to go to Montreal. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Montreal.
Can you sunbathe in Montreal in May?
May has mild temperatures in Montreal. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Is Montreal rainy in May?
Montreal is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Montreal in May?
Usually, it’s not very sunny in Montreal in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Montreal, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.