Sylvan Lake weather in August

In August, Sylvan Lake sees average daytime highs of 21°C and overnight lows near 9°C, with 68 mm of rain across 10.3 wet days and about 14.5 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 20°C by the end. The sky is clear or mostly clear about 36% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 24 min at the start of August to 13 h 30 min by month's end. Set against the rest of the year, August is Sylvan Lake's 1st-clearest and 12th-windiest month. For the whole year in context, see Sylvan Lake's year-round climate.

Daytime high
21°
2nd warmest
Overnight low
11th coldest
Rainfall
68 mm
10.3 wet days
Daylight
14 h 30 min
5:26 AM – 7:55 PM
Cloud cover
54%
1st clearest
Wind
9 km/h
12th windiest
Solar energy
5.35 kWh/m²
Travel score
6.6
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 August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 20°C by the end.

A typical August day in Sylvan Lake reaches about 21°C in the afternoon and slips back to 9°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 27°C. Set against its neighbours, August runs on par with July and about 5°C warmer than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12210
22210
32210
42210
52210
62210
72210
82210
92210
102210
112210
122210
132210
142210
15229
16219
17219
18219
19219
20219
21219
22219
23218
24218
25208
26208
27208
28208
29208
30207
31197

How August really feels in Sylvan Lake

Once humidity and wind are folded in, August 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

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

Sylvan Lake weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 3rd-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35743
45644
55545
65545
75446
85545
95446
105446
115446
125545
135545
145545
155545
165545
175545
185545
195545
205644
215743
225743
235743
245743
255644
265644
275743
285743
295644
305644
315644

Chance of precipitation in August

Any precipitation

Sylvan Lake gets around 68 mm of rain over 10.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
537
637
737
837
937
1036
1136
1236
1335
1435
1534
1634
1733
1833
1932
2031
2131
2230
2330
2429
2529
2629
2728
2828
2928
3028
3128

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August 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 (%)
177212
277212
377212
477212
578202
678202
779192
880182
981181
1082171
1183161
1284151
1385141
1486131
1587121
1688111
1789101
189091
199181
209370
219460
229460
239550
249640
259730
269730
279820
289820
299820
309820
319910

Wind in August

Winds average 9 km/h in August, the calmest month.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 24 min at the start of August to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 114 minutes over August. Sunrise moves from 5:01 AM to 5:51 AM, and sunset from 8:23 PM to 7:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.45:018:23
215.35:038:22
315.35:058:20
415.25:068:18
515.15:088:16
615.15:098:15
715.05:118:13
815.05:138:11
914.95:148:09
1014.95:168:07
1114.85:188:05
1214.75:198:03
1314.75:218:01
1414.65:237:59
1514.55:247:57
1614.55:267:55
1714.45:287:53
1814.45:297:51
1914.35:317:49
2014.25:337:46
2114.25:347:44
2214.15:367:42
2314.05:387:40
2414.05:397:38
2513.95:417:35
2613.85:437:33
2713.85:457:31
2813.75:467:28
2913.65:487:26
3013.65:507:24
3113.55:517:21

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.35 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 — August's 5.35 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.8Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Sylvan Lake?

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

6.6
Sightseeing
1st-best month of the year
4.1
Beach & pool
2nd-best month of the year

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

What to pack for Sylvan Lake in August

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

In August, Sylvan Lake sees daytime highs around 21°C and nights near 9°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

UV index in Sylvan Lake in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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
August 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).