Rosemont–La Petite-Patrie weather in May

In May, Rosemont–La Petite-Patrie sees average daytime highs of 19°C and overnight lows near 8°C, with 100 mm of rain across 11.9 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 21°C by the end. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 hours at the start of May to 15 h 12 min by month's end. Set against the rest of the year, May is Rosemont–La Petite-Patrie's 5th-clearest and 8th-windiest month. For the whole year in context, see Rosemont–La Petite-Patrie's year-round climate.

Daytime high
19°
5th warmest
Overnight low
8th coldest
Rainfall
100 mm
11.9 wet days
Daylight
14 h 42 min
4:30 AM – 7:11 PM
Cloud cover
65%
5th clearest
Wind
13 km/h
8th windiest
Solar energy
5.53 kWh/m²
Travel score
5.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 21°C by the end.

A typical May day in Rosemont–La Petite-Patrie reaches about 19°C in the afternoon and slips back to 8°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 26°C. Set against its neighbours, May runs about 8°C warmer than April and about 5°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1165
2165
3166
4176
5176
6176
7177
8177
9187
10187
11187
12187
13188
14198
15198
16198
17198
18199
19209
20209
21209
22209
232010
242010
252110
262110
272110
282111
292111
302111
312111

How May really feels in Rosemont–La Petite-Patrie

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Rosemont–La Petite-Patrie weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-5° / -13°7410.59.28.90.0
Feb-3° / -13°609.3810.10.0
Mar / -6°7410.36.511.60.1
Apr11° / 10311.72.413.22.7
May19° / 10011.9014.75.7
Jun24° / 14°10812.2015.46.4
Jul26° / 17°10112.8015.16.2
Aug25° / 15°10311.7013.96.6
Sep21° / 11°10010.2012.36.4
Oct13° / 11211.50.510.73.5
Nov / -2°8811.93.49.30.5
Dec-1° / -8°8511.69.18.60.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23961
33961
43961
53961
63961
73961
84060
94060
104060
114060
124159
134159
144258
154159
164159
174258
184159
194159
204060
214060
224060
233961
243961
253961
263862
273763
283763
293664
303664
313664

Chance of precipitation in May

Any precipitation

Rosemont–La Petite-Patrie gets around 100 mm of rain over 11.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
236
336
436
536
636
735
835
935
1035
1135
1235
1335
1435
1536
1636
1736
1837
1937
2038
2138
2239
2340
2440
2541
2641
2742
2842
2942
3042
3142

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
196400
296400
396400
496400
595500
695500
795500
895500
995500
1095500
1193610
1293610
1393610
1493610
1592620
1692620
1792620
1891630
1990730
2089740
2187850
2286950
2385960
24831061
25811171
26801271
27791371
28781471
29771571
30751672
31741772

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 hours at the start of May to 15 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over May. Sunrise moves from 4:51 AM to 4:16 AM, and sunset from 6:53 PM to 7:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.04:516:53
214.14:496:54
314.14:476:55
414.24:466:57
514.24:446:58
614.34:436:59
714.34:427:00
814.44:407:02
914.44:397:03
1014.44:377:04
1114.54:367:05
1214.54:357:07
1314.64:337:08
1414.64:327:09
1514.74:317:10
1614.74:307:11
1714.74:297:13
1814.84:287:14
1914.84:277:15
2014.84:257:16
2114.94:247:17
2214.94:237:18
2314.94:227:19
2415.04:227:21
2515.04:217:22
2615.04:207:23
2715.14:197:24
2815.14:187:25
2915.14:177:26
3015.24:177:27
3115.24:167:28

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.53 kWh/m².

For context, solar energy here swings from a low near 1.25 kWh/m² to a high of 5.92 kWh/m² in June across the year — May's 5.53 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.4Bright
85.4Bright
95.4Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.7Bright
Planning a trip in May

Is May a good time to visit Rosemont–La Petite-Patrie?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.7
Sightseeing
5th-best month of the year
2.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Rosemont–La Petite-Patrie for sightseeing.

What to pack for Rosemont–La Petite-Patrie in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Rosemont–La Petite-Patrie sees daytime highs around 19°C and nights near 8°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

UV index in Rosemont–La Petite-Patrie in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rosemont–La Petite-Patrie peaks around July 13 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul8Very high
Aug4Moderate
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Rosemont–La Petite-Patrie?

Rosemont–La Petite-Patrie sits at 45.5°N, 73.6°W, 57 m above sea level, in Canada. The nearest listed city is Mile End, 2.0 km away.

Topography around Rosemont–La Petite-Patrie

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rosemont–La Petite-Patrie.

Within 3 km, the terrain around Rosemont–La Petite-Patrie has only modest variations in elevation — a maximum elevation change of 204 m around an average of 63 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 292 m; within 80 km, large variations in elevation — a maximum elevation change of 702 m.

The land around Rosemont–La Petite-Patrie is covered by artificial surfaces (79%) within 3 km, artificial surfaces (52%) and trees (20%) within 16 km, and trees (44%) and cropland (39%) within 80 km.

3 km
204 m
16 km
292 m
80 km
702 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Mile End 2.0 km · Parc-Extension 2.0 km · Le Plateau-Mont-Royal 2.0 km · Outremont 2.0 km · Villeray–Saint-Michel–Parc-Extension 2.0 km · Montreal 3.0 km · Saint-Michel 4.0 km · Mont-Royal 4.0 km

Canada travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 83% of US
price level, 2025
GDP per capita
$55,698
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 53%none 35%Muslim 5%Hindu 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Rosemont–La Petite-Patrie (45.5366°, -73.6069°, elevation 57 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).