Les Coteaux weather in May

In May, Les Coteaux sees average daytime highs of 19°C and overnight lows near 8°C, with 95 mm of precipitation across 11.4 wet days and about 14.6 hours of daylight. It is the 5th-warmest and 4th-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 22% 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 Les Coteaux's 5th-clearest and 8th-windiest month. For the whole year in context, see Les Coteaux's year-round climate.

Daytime high
19°
5th warmest
Overnight low
8th coldest
Precipitation
95 mm
11.4 wet days
Daylight
14 h 42 min
4:33 AM – 7:13 PM
Cloud cover
65%
5th clearest
Wind
12 km/h
8th windiest
Solar energy
5.56 kWh/m²
Travel score
5.7
out of 10

Les Coteaux is municipality in Montérégie, Quebec, Canada.

Density
1,200/km²
people per km²
Founded
1994

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Les Coteaux 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 12°C and 26°C. Set against its neighbours, May runs about 7°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
7176
8187
9187
10187
11187
12187
13188
14198
15198
16198
17198
18198
19209
20209
21209
22209
232010
242010
252110
262110
272110
282111
292111
302111
312111

How May really feels in Les Coteaux

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.

Les Coteaux weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-4° / -13°7210.79.68.90.0
Feb-3° / -12°619.48.410.10.0
Mar / -6°7310.66.711.60.1
Apr12° / 10111.72.713.22.8
May19° / 9511.4014.65.7
Jun24° / 14°9711.6015.46.4
Jul26° / 16°8912.5015.16.3
Aug25° / 15°8710.9013.96.7
Sep21° / 11°8710.1012.36.4
Oct13° / 10511.60.510.73.6
Nov / -1°8311.73.49.30.6
Dec-1° / -8°8211.998.60.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 (%)
13763
23763
33862
43862
53862
63961
73961
84060
94060
104060
114159
124159
134159
144159
154159
164159
174159
184159
194060
204060
214060
223961
233961
243961
253862
263862
273763
283763
293763
303763
313763

Chance of precipitation in May

Any precipitationSnow

Les Coteaux gets around 95 mm of rain and snow over 11.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 36% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1372
2371
3361
4361
5361
6361
7360
8350
9350
10350
11350
12350
13350
14350
15350
16350
17350
18350
19350
20360
21360
22370
23370
24380
25380
26380
27390
28390
29390
30390
31390

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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
197300
296400
396400
496400
595410
695410
794510
894510
994510
1094510
1194510
1294510
1393610
1492620
1592620
1692620
1790730
1890730
1988840
2087940
2186950
22831061
23821161
24811171
25791281
26781381
27771481
28761491
29741592
30731692
317117102

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 4:54 AM to 4:20 AM, and sunset from 6:55 PM to 7:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.04:546:55
214.14:526:56
314.14:516:57
414.24:496:59
514.24:487:00
614.24:467:01
714.34:457:02
814.34:437:04
914.44:427:05
1014.44:417:06
1114.54:397:07
1214.54:387:08
1314.54:377:10
1414.64:357:11
1514.64:347:12
1614.74:337:13
1714.74:327:14
1814.74:317:16
1914.84:307:17
2014.84:297:18
2114.94:287:19
2214.94:277:20
2314.94:267:21
2415.04:257:22
2515.04:247:23
2615.04:237:24
2715.04:227:25
2815.14:227:26
2915.14:217:27
3015.14:207:28
3115.24:207:29

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.56 kWh/m².

For context, solar energy here swings from a low near 1.22 kWh/m² to a high of 5.95 kWh/m² in June across the year — May's 5.56 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
65.4Bright
75.4Bright
85.4Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in May

Is May a good time to visit Les Coteaux?

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
2.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Les Coteaux for sightseeing.

What to pack for Les Coteaux in May

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

In May, Les Coteaux sees daytime highs around 19°C and nights near 8°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Les Coteaux 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 Les Coteaux peaks around July 14 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateModerateLowJul 14UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul8Very high
Aug4Moderate
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Les Coteaux?

Les Coteaux sits at 45.3°N, 74.2°W, 44 m above sea level, in Canada. The nearest listed city is Salaberry-de-Valleyfield, 9.0 km away.

Topography around Les Coteaux

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Les Coteaux.

Within 3 km, the terrain around Les Coteaux has only modest variations in elevation — a maximum elevation change of 81 m around an average of 50 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 149 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,210 m.

The land around Les Coteaux is covered by cropland (50%) and trees (25%) within 3 km, cropland (53%) and trees (20%) within 16 km, and trees (54%) and cropland (29%) within 80 km.

3 km
81 m
16 km
149 m
80 km
1,210 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Salaberry-de-Valleyfield 9.0 km · Saint-Lazare 15 km · Vaudreuil-Dorion 20 km · Pierrefonds 33 km · Beaconsfield 33 km · Kirkland 34 km · L'Île-Bizard–Sainte-Geneviève 35 km · Pointe-Claire 37 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 Les Coteaux (45.2834°, -74.2325°, elevation 44 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).