Cobourg weather in August

In August, Cobourg sees average daytime highs of 24°C and overnight lows near 17°C, with 75 mm of rain across 10 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 6th-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 humid.

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 Cobourg's 1st-clearest and 12th-windiest month. For the whole year in context, see Cobourg's year-round climate.

Daytime high
24°
2nd warmest
Overnight low
17°
11th coldest
Rainfall
75 mm
10 wet days
Daylight
13 h 48 min
5:22 AM – 7:12 PM
Cloud cover
54%
1st clearest
Wind
11 km/h
12th windiest
Solar energy
5.55 kWh/m²
Travel score
7.0
out of 10

Cobourg is town in Ontario, Canada.

Density
809/km²
people per km²
Founded
1798

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 Cobourg reaches about 24°C in the afternoon and slips back to 17°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12518
22518
32518
42518
52518
62518
72518
82518
92518
102518
112518
122518
132518
142518
152418
162418
172418
182417
192417
202417
212417
222417
232417
242417
252417
262417
272417
282317
292316
302316
312316

How August really feels in Cobourg

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.

Cobourg weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -9°6710.98.59.10.0
Feb-2° / -9°528.26.610.20.0
Mar / -4°6110.35.411.60.0
Apr / 8410.6213.21.9
May15° / 7010.6014.54.7
Jun22° / 14°7810.4015.26.5
Jul25° / 18°7610.2014.96.9
Aug24° / 17°7510013.87.0
Sep20° / 13°809.2012.36.5
Oct14° / 8411.70.110.83.7
Nov / 7510.32.49.41.0
Dec / -4°7111.16.28.80.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of August, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65545
75644
85743
95743
105743
115743
125743
135743
145743
155743
165743
175842
185842
195842
205842
215842
225842
235842
245842
255842
265842
275842
285842
295743
305743
315743

Chance of precipitation in August

Any precipitation

Cobourg gets around 75 mm of rain over 10 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 32% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
134
233
333
433
533
633
733
833
933
1033
1134
1234
1334
1434
1534
1634
1734
1834
1933
2033
2133
2232
2332
2431
2530
2630
2729
2829
2928
3028
3128

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 28% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1112534264
2112534264
3112533264
4112633274
5112632274
6122632274
7122631274
8122631264
9132631264
10132630264
11142630264
12142630254
13152631254
14152631253
15152631253
16162631253
17162631243
18162631243
19162631243
20172631242
21172631242
22182630242
23182630242
24192630232
25192630232
26202629232
27212629222
28212629222
29222728222
30232727212
31242727212

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
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
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 5:05 AM to 5:39 AM, and sunset from 7:33 PM to 6:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.55:057:33
214.45:067:32
314.45:077:30
414.45:087:29
514.35:097:28
614.35:107:26
714.25:117:25
814.25:127:24
914.15:147:22
1014.15:157:21
1114.15:167:19
1214.05:177:18
1314.05:187:16
1413.95:197:15
1513.95:217:13
1613.85:227:12
1713.85:237:10
1813.75:247:09
1913.75:257:07
2013.65:267:05
2113.65:287:04
2213.65:297:02
2313.55:307:00
2413.55:316:59
2513.45:326:57
2613.45:336:55
2713.35:356:53
2813.35:366:52
2913.25:376:50
3013.25:386:48
3113.15:396:46

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.55 kWh/m².

For context, solar energy here swings from a low near 1.32 kWh/m² to a high of 6.46 kWh/m² in June across the year — August's 5.55 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
36.0Bright
45.9Bright
55.9Bright
65.9Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.3Bright
255.2Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in August

Is August a good time to visit Cobourg?

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

7.0
Sightseeing
1st-best month of the year
6.0
Beach & pool
2nd-best month of the year

August is one of the better times to visit Cobourg for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cobourg in August

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

In August, Cobourg sees daytime highs around 24°C and nights near 17°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Cobourg 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 offshore is warmest in August at about 21°C and coldest in March near 2°C.

It's comfortable for a long swim from Jul 23 to Sep 6 — about 1.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar2Bracing
Apr3Bracing
May6Bracing
Jun14Bracing
Jul20Cool
Aug21Refreshing
Sep19Cool
Oct14Bracing
Nov8Bracing
Dec5Bracing

UV index in Cobourg 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 Cobourg peaks around June 22 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 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 22UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Cobourg?

Cobourg sits at 44.0°N, 78.2°W, 82 m above sea level, in Canada. The nearest listed city is Peterborough, 40 km away.

Topography around Cobourg

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

Within 3 km, the terrain around Cobourg has only modest variations in elevation — a maximum elevation change of 65 m around an average of 86 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 282 m; within 80 km, significant variations in elevation — a maximum elevation change of 394 m.

The land around Cobourg is covered by water (42%), trees (21%) and artificial surfaces (21%) within 3 km, water (48%) and trees (23%) within 16 km, and water (46%) and trees (29%) within 80 km.

3 km
65 m
16 km
282 m
80 km
394 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Peterborough 40 km · Bowmanville 42 km · Quinte West 54 km · Oshawa 55 km · Whitby 62 km · Lindsay 63 km · Brooklin 64 km · Belleville 67 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 Cobourg (43.9598°, -78.1651°, elevation 82 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).