Barrie weather in August

In August, Barrie sees average daytime highs of 24°C and overnight lows near 15°C, with 84 mm of rain across 11.1 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 23°C by the end. The sky is clear or mostly clear about 35% 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 Barrie's 2nd-clearest and 12th-windiest month. For the whole year in context, see Barrie's year-round climate.

Daytime high
24°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
84 mm
11.1 wet days
Daylight
13 h 54 min
5:27 AM – 7:19 PM
Cloud cover
55%
2nd clearest
Wind
10 km/h
12th windiest
Solar energy
5.27 kWh/m²
Travel score
6.9
out of 10

Barrie is city in Ontario, Canada.

Air quality
Good
PM2.5 7 µg/m³ · 2019
Density
1,920/km²
people per km²
Founded
1812

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 25°C in the first days to 23°C by the end.

A typical August day in Barrie reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 29°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)
12516
22516
32516
42516
52516
62516
72516
82516
92516
102416
112415
122415
132415
142415
152415
162415
172415
182415
192415
202415
212415
222415
232415
242415
252415
262414
272314
282314
292314
302314
312314

How August really feels in Barrie

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.

Barrie 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° / -11°6111.811.990.0
Feb-2° / -11°488.78.710.10.0
Mar / -6°57106.811.60.1
Apr11° / 77113.213.22.4
May18° / 8210.5014.65.5
Jun23° / 13°8710.7015.36.6
Jul25° / 16°8011.40156.7
Aug24° / 15°8411.1013.86.9
Sep20° / 11°8011012.36.2
Oct13° / 8213.20.410.83.3
Nov / -1°7412.359.40.5
Dec-0° / -6°6313.2118.70.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55644
65644
75644
85743
95743
105644
115644
125644
135545
145545
155545
165446
175446
185446
195446
205347
215446
225446
235347
245347
255347
265446
275446
285446
295446
305446
315545

Chance of precipitation in August

Any precipitation

Barrie gets around 84 mm of rain over 11.1 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 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
537
637
737
837
937
1036
1136
1236
1336
1436
1536
1635
1735
1835
1935
2035
2135
2235
2334
2434
2534
2634
2734
2834
2934
3034
3135

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 30% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1193430161
2193430161
3203330161
4203330161
5203330161
6213230161
7223230151
8223130151
9233130151
10243030151
11253030141
12253030141
13263030131
14262930131
15272930131
16272930131
17282930131
18282929131
19282929131
20292929131
21292928131
22302928130
23312927130
24312927130
25322926130
26332926130
27332925120
28342925120
29352824120
30362823120
31382822120

Wind in August

Winds average 10 km/h in August, the calmest month.

Across August, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:09 AM to 5:45 AM, and sunset from 7:40 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.55:097:40
214.55:117:39
314.45:127:37
414.45:137:36
514.35:147:35
614.35:157:34
714.35:167:32
814.25:177:31
914.25:197:29
1014.15:207:28
1114.15:217:26
1214.05:227:25
1314.05:237:23
1414.05:247:22
1513.95:267:20
1613.95:277:19
1713.85:287:17
1813.85:297:15
1913.75:307:14
2013.75:327:12
2113.65:337:10
2213.65:347:09
2313.55:357:07
2413.55:367:05
2513.45:387:04
2613.45:397:02
2713.35:407:00
2813.35:416:58
2913.25:426:56
3013.25:446:54
3113.15:456:53

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.27 kWh/m².

For context, solar energy here swings from a low near 1.22 kWh/m² to a high of 6.29 kWh/m² in June across the year — August's 5.27 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.6Bright
75.6Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.7Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Barrie?

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

6.9
Sightseeing
1st-best month of the year
5.8
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Barrie for sightseeing.

What to pack for Barrie in August

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

In August, Barrie sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Barrie 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 44 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 24 — about 0.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan3Bracing
Feb2Bracing
Mar1Bracing
Apr2Bracing
May5Bracing
Jun11Bracing
Jul19Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov9Bracing
Dec6Bracing

UV index in Barrie in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Barrie peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 21UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May6High
Jun8Very high
Jul8Very high
Aug6High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Barrie?

Barrie sits at 44.4°N, 79.7°W, 269 m above sea level, in Canada. The nearest listed city is Innisfil, 11 km away.

Topography around Barrie

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

Within 3 km, the terrain around Barrie has only modest variations in elevation — a maximum elevation change of 83 m around an average of 244 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 239 m; within 80 km, significant variations in elevation — a maximum elevation change of 471 m.

The land around Barrie is covered by water (30%), artificial surfaces (29%) and trees (27%) within 3 km, trees (42%) and cropland (26%) within 16 km, and trees (43%) and cropland (22%) within 80 km.

3 km
83 m
16 km
239 m
80 km
471 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Innisfil 11 km · Keswick 23 km · Orillia 30 km · Wasaga Beach 31 km · Alliston 32 km · East Gwillimbury 38 km · Newmarket 42 km · Midland 43 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 Barrie (44.4001°, -79.6663°, elevation 269 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).