Owen Sound weather in August

In August, Owen Sound sees average daytime highs of 24°C and overnight lows near 14°C, with 89 mm of rain across 11.6 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 34% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 30 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Owen Sound's 2nd-clearest and 12th-windiest month. For the whole year in context, see Owen Sound's year-round climate.

Daytime high
24°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
89 mm
11.6 wet days
Daylight
13 h 54 min
5:32 AM – 7:24 PM
Cloud cover
55%
2nd clearest
Wind
11 km/h
12th windiest
Solar energy
5.51 kWh/m²
Travel score
6.8
out of 10

Owen Sound is city in Ontario, Canada.

Founded
1857

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical August day in Owen Sound reaches about 24°C in the afternoon and slips back to 14°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 28°C. Set against its neighbours, August runs about 1°C cooler than July and about 4°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12515
22515
32415
42415
52415
62415
72415
82415
92415
102415
112415
122415
132415
142415
152415
162415
172414
182414
192414
202414
212414
222414
232414
242314
252314
262314
272314
282314
292314
302313
312313

How August really feels in Owen Sound

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.

Owen Sound weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -10°7213.814.890.0
Feb-2° / -10°5410.61110.10.0
Mar / -5°6110.87.211.60.2
Apr11° / 81123.713.22.6
May18° / 8310.50.314.65.6
Jun23° / 12°8610.3015.36.7
Jul25° / 15°9012.20156.7
Aug24° / 14°8911.6013.96.8
Sep20° / 11°8811.6012.36.1
Oct13° / 8814.20.310.73.3
Nov / -0°8313.96.89.40.6
Dec / -5°7415.514.48.70.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45644
55545
65545
75545
85545
95545
105545
115545
125347
135347
145347
155248
165248
175248
185248
195248
205149
215149
225149
235248
245248
255347
265347
275347
285446
295545
305545
315545

Chance of precipitation in August

Any precipitation

Owen Sound gets around 89 mm of rain over 11.6 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 37% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
241
341
440
540
640
739
839
939
1038
1138
1237
1337
1437
1536
1636
1736
1836
1936
2036
2136
2235
2335
2435
2536
2636
2736
2836
2937
3037
3137

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1233428131
2233428131
3233428131
4243428131
5243428131
6253428131
7253327131
8263327131
9273227131
10283227131
11293127131
12293027131
13303027130
14303027120
15313027120
16312927120
17322927110
18322927110
19322927110
20332927110
21332927110
22332927110
23342926100
24342926100
25352925100
26353025100
27363024100
28373023100
29383022100
30393021101
3140302091

Wind in August

Winds average 11 km/h in August, the calmest month.

Across August, 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 30 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over August. Sunrise moves from 5:14 AM to 5:50 AM, and sunset from 7:46 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.55:147:46
214.55:157:44
314.45:167:43
414.45:187:42
514.45:197:40
614.35:207:39
714.35:217:38
814.25:227:36
914.25:237:35
1014.15:247:33
1114.15:267:32
1214.15:277:30
1314.05:287:29
1414.05:297:27
1513.95:307:26
1613.95:327:24
1713.85:337:23
1813.85:347:21
1913.75:357:19
2013.75:367:18
2113.65:387:16
2213.65:397:14
2313.55:407:12
2413.55:417:11
2513.45:427:09
2613.45:447:07
2713.35:457:05
2813.35:467:03
2913.25:477:02
3013.25:487:00
3113.15:506:58

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.51 kWh/m².

For context, solar energy here swings from a low near 1.13 kWh/m² to a high of 6.63 kWh/m² in June across the year — August's 5.51 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Bright
45.9Bright
55.9Bright
65.9Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.5Bright
195.4Bright
205.4Bright
215.3Bright
225.3Bright
235.3Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
314.9Bright
Planning a trip in August

Is August a good time to visit Owen Sound?

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

6.8
Sightseeing
1st-best month of the year
5.6
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Owen Sound for sightseeing.

What to pack for Owen Sound in August

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

In August, Owen Sound sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Owen Sound in August

The nearest coast averages about 21°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 26 km away) is warmest in August at about 21°C and coldest in March near 1°C.

It's comfortable for a long swim from Aug 9 to Aug 23 — about 0.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan3Bracing
Feb2Bracing
Mar1Bracing
Apr2Bracing
May4Bracing
Jun11Bracing
Jul18Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov9Bracing
Dec6Bracing

UV index in Owen Sound in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Owen Sound peaks around June 20 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 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 highHighModerateLowJun 20UV 8Jan 12UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May7High
Jun8Very high
Jul8Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Owen Sound?

Owen Sound sits at 44.6°N, 80.9°W, 180 m above sea level, in Canada. The nearest listed city is Collingwood, 58 km away.

Topography around Owen Sound

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

Within 3 km, the terrain around Owen Sound has only modest variations in elevation — a maximum elevation change of 111 m around an average of 222 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 215 m; within 80 km, significant variations in elevation — a maximum elevation change of 371 m.

The land around Owen Sound is covered by trees (45%) within 3 km, trees (48%) and cropland (25%) within 16 km, and water (47%), trees (25%) and cropland (21%) within 80 km.

3 km
111 m
16 km
215 m
80 km
371 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Collingwood 58 km · Wasaga Beach 74 km · Midland 86 km · Alliston 97 km · Orangeville 99 km · Barrie 103 km · Fergus 106 km · Innisfil 107 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 Owen Sound (44.5672°, -80.9435°, elevation 180 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).