Sylvan Lake weather in May

In May, Sylvan Lake sees average daytime highs of 16°C and overnight lows near 4°C, with 63 mm of precipitation across 10.1 wet days and about 15.4 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 18°C by the end. The sky is clear or mostly clear about 21% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of May to 16 h 06 min by month's end. Set against the rest of the year, May is Sylvan Lake's 9th-clearest and 2nd-windiest month. For the whole year in context, see Sylvan Lake's year-round climate.

Daytime high
16°
5th warmest
Overnight low
8th coldest
Precipitation
63 mm
10.1 wet days
Daylight
15 h 30 min
4:48 AM – 8:17 PM
Cloud cover
66%
9th clearest
Wind
11 km/h
2nd windiest
Solar energy
6.05 kWh/m²
Travel score
4.7
out of 10

Sylvan Lake is town in Alberta, Canada.

Density
748/km²
people per km²
Founded
1946

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 13°C in the first days to 18°C by the end.

A typical May day in Sylvan Lake reaches about 16°C in the afternoon and slips back to 4°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 23°C. Set against its neighbours, May runs about 6°C warmer than April and about 3°C cooler than June.

10°20°151015202531
Avg high (°C)Avg low (°C)
1131
2131
3131
4141
5142
6142
7142
8142
9152
10153
11153
12153
13153
14153
15164
16164
17164
18164
19164
20165
21175
22175
23175
24175
25176
26176
27176
28176
29186
30186
31187

How May really feels in Sylvan Lake

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 12 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
12
wind chill below the day's low

The story in May is cold — wind chill drags the overnight "feels like" below the raw low.

Sylvan Lake 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-5° / -15°174.95.980.0
Feb-3° / -13°113.34.59.50.0
Mar / -8°205.55.411.50.0
Apr10° / -2°337.4413.62.1
May16° / 6310.11.815.44.7
Jun19° / 9114.3016.45.4
Jul22° / 10°8413.20166.2
Aug21° / 6810.3014.56.6
Sep17° / 438.40.712.45.4
Oct / -1°2562.510.32.1
Nov / -8°215.55.38.50.0
Dec-4° / -13°154.75.57.50.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23862
33862
44060
54060
64159
74159
84258
94357
104357
114258
124159
134159
144060
154060
163961
173862
183763
193763
203862
213763
223763
233763
243862
253862
263961
273961
284159
294159
304159
314258

Chance of precipitation in May

Any precipitationSnow

Sylvan Lake gets around 63 mm of rain and snow over 10.1 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 33% and peaks near 40% on the wettest days, and about 2 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13011
23011
33011
43010
52910
6299
7299
8298
9298
10297
11297
12307
13306
14316
15315
16325
17335
18335
19344
20354
21364
22374
23374
24383
25383
26383
27392
28392
29391
30401
31401

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in May

Winds average 11 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
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 36 min at the start of May to 16 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over May. Sunrise moves from 5:15 AM to 4:30 AM, and sunset from 7:52 PM to 8:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:157:52
214.75:137:53
314.75:117:55
414.85:097:57
514.95:087:59
614.95:068:00
715.05:048:02
815.05:028:04
915.15:008:05
1015.14:588:07
1115.24:578:09
1215.34:558:10
1315.34:538:12
1415.44:528:13
1515.44:508:15
1615.54:488:17
1715.54:478:18
1815.64:458:20
1915.64:448:21
2015.74:438:23
2115.74:418:24
2215.84:408:26
2315.84:398:27
2415.94:378:29
2515.94:368:30
2615.94:358:31
2716.04:348:33
2816.04:338:34
2916.14:328:35
3016.14:318:37
3116.14:308:38

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.05 kWh/m².

For context, solar energy here swings from a low near 0.94 kWh/m² to a high of 6.37 kWh/m² in July across the year — May's 6.05 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.8Bright
45.8Bright
55.8Bright
65.9Bright
75.9Bright
85.9Bright
96.0Bright
106.0Bright
116.0Intense
126.0Intense
136.0Intense
146.0Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.3Intense
Planning a trip in May

Is May a good time to visit Sylvan Lake?

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

4.7
Sightseeing
5th-best month of the year
0.6
Beach & pool
5th-best month of the year

May is a reasonable time to visit Sylvan Lake for sightseeing.

What to pack for Sylvan Lake in May

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

In May, Sylvan Lake sees daytime highs around 16°C and nights near 4°C. Pack sun protection. Worth having: a warm layer and rain gear. About 10 days see rain.

sun protectiona warm layerrain gear

UV index in Sylvan Lake in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sylvan Lake peaks around July 15 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowJul 15UV 7Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul7Very high
Aug5Moderate
Sep3Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Sylvan Lake in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Sylvan Lake is worst in August — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (October, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1118 µg/m³Oct 217 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb8Good
Mar11Good
Apr9Good
May12Good
Jun11Good
Jul17Moderate
Aug19Moderate
Sep11Good
Oct7Good
Nov8Good
Dec8Good
Location & terrain

Where is Sylvan Lake?

Sylvan Lake sits at 52.3°N, 114.1°W, 940 m above sea level, in Canada. The nearest listed city is Red Deer, 20 km away.

Topography around Sylvan Lake

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

Within 3 km, the terrain around Sylvan Lake has only modest variations in elevation — a maximum elevation change of 69 m around an average of 950 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 186 m; within 80 km, large variations in elevation — a maximum elevation change of 645 m.

The land around Sylvan Lake is covered by grassland (31%) and water (24%) within 3 km, cropland (51%) and grassland (31%) within 16 km, and grassland (37%), cropland (36%) and trees (24%) within 80 km.

3 km
69 m
16 km
186 m
80 km
645 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Red Deer 20 km · Leduc 112 km · Airdrie 112 km · Camrose 115 km · Coventry Hills 127 km · Evanston 128 km · Cochrane 128 km · Panorama Hills 129 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 Sylvan Lake (52.311°, -114.0837°, elevation 940 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).