Aylmer weather in August

In August, Aylmer sees average daytime highs of 24°C and overnight lows near 14°C, with 90 mm of rain across 11.1 wet days and about 13.9 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 28% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Aylmer's 2nd-clearest and 12th-windiest month. For the whole year in context, see Aylmer's year-round climate.

Daytime high
24°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
90 mm
11.1 wet days
Daylight
13 h 54 min
5:09 AM – 7:05 PM
Cloud cover
59%
2nd clearest
Wind
9 km/h
12th windiest
Solar energy
5.07 kWh/m²
Travel score
6.7
out of 10

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 Aylmer reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°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)
12615
22515
32515
42515
52515
62515
72515
82515
92515
102515
112515
122515
132515
142514
152514
162514
172414
182414
192414
202414
212414
222414
232414
242414
252413
262413
272413
282313
292313
302313
312313

How August really feels in Aylmer

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.

Aylmer 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-6° / -15°7310.59.78.90.0
Feb-4° / -14°578.78.110.10.0
Mar / -8°739.96.811.60.0
Apr11° / 9011.13.213.22.6
May19° / 8811.40.214.75.6
Jun23° / 12°9911.7015.46.4
Jul26° / 15°9812.4015.16.4
Aug24° / 14°9011.1013.96.7
Sep20° / 10°9510.4012.36.2
Oct12° / 9912.30.710.73.1
Nov / -2°8311.44.49.30.4
Dec-2° / -9°7911.49.18.60.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
44753
54753
64753
74753
84852
94852
104852
114852
124852
134951
144951
154951
164951
174951
184852
194951
204951
214951
224951
234852
244852
254852
264852
274852
284852
294951
304852
314852

Chance of precipitation in August

Any precipitation

Aylmer gets around 90 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 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
238
338
438
538
637
737
837
937
1037
1137
1237
1337
1437
1537
1636
1736
1836
1935
2035
2135
2234
2334
2433
2533
2633
2732
2832
2932
3032
3132

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 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 (%)
1232832152
2232832152
3232832151
4242832151
5242932141
6242932141
7242932131
8252932131
9253032121
10253031121
11263031121
12263031111
13273131111
14273130111
15283130101
16293129101
17293129101
18303128101
19313127101
20323126100
21333026100
22343025100
23363024110
24372923110
25382922110
26392921110
27402821100
28422820100
29432719100
30442619100
31462618101

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
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 36 min at the start of August to 13 h 12 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 4:51 AM to 5:28 AM, and sunset from 7:27 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.64:517:27
214.64:527:26
314.54:547:25
414.54:557:23
514.44:567:22
614.44:577:21
714.34:587:19
814.35:007:18
914.35:017:16
1014.25:027:15
1114.25:037:13
1214.15:047:12
1314.15:067:10
1414.05:077:09
1514.05:087:07
1613.95:097:05
1713.95:117:04
1813.85:127:02
1913.85:137:00
2013.75:146:58
2113.75:166:57
2213.65:176:55
2313.65:186:53
2413.55:196:51
2513.55:216:50
2613.45:226:48
2713.45:236:46
2813.35:246:44
2913.35:266:42
3013.25:276:40
3113.25:286:38

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.07 kWh/m².

For context, solar energy here swings from a low near 1.19 kWh/m² to a high of 5.97 kWh/m² in June across the year — August's 5.07 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.1Bright
185.0Bright
195.0Bright
205.0Bright
214.9Bright
224.9Bright
234.8Bright
244.8Bright
254.8Bright
264.7Bright
274.7Bright
284.6Bright
294.6Bright
304.6Bright
314.5Bright
Planning a trip in August

Is August a good time to visit Aylmer?

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

6.7
Sightseeing
1st-best month of the year
5.8
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Aylmer for sightseeing.

What to pack for Aylmer in August

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

In August, Aylmer sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Aylmer 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 Aylmer peaks around July 14 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul8Very high
Aug5High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Aylmer?

Aylmer sits at 45.4°N, 75.8°W, 90 m above sea level, in Canada. The nearest listed city is Hull, 8.0 km away.

Topography around Aylmer

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

Within 3 km, the terrain around Aylmer has only modest variations in elevation — a maximum elevation change of 84 m around an average of 82 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 344 m; within 80 km, significant variations in elevation — a maximum elevation change of 580 m.

The land around Aylmer is covered by trees (41%), water (22%) and artificial surfaces (20%) within 3 km, trees (42%) and artificial surfaces (23%) within 16 km, and trees (64%) and cropland (20%) within 80 km.

3 km
84 m
16 km
344 m
80 km
580 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Hull 8.0 km · Ottawa 9.0 km · Centretown 9.0 km · Ottawa South 9.0 km · Nepean 10 km · Alta Vista 12 km · Gatineau 12 km · Vanier 12 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 Aylmer (45.4002°, -75.8064°, elevation 90 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).