Strathroy weather in August

In August, Strathroy sees average daytime highs of 25°C and overnight lows near 15°C, with 85 mm of rain across 10.8 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°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 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Strathroy's 3rd-clearest and 12th-windiest month. For the whole year in context, see Strathroy's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
85 mm
10.8 wet days
Daylight
13 h 48 min
5:37 AM – 7:24 PM
Cloud cover
55%
3rd clearest
Wind
10 km/h
12th windiest
Solar energy
5.53 kWh/m²
Travel score
6.7
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical August day in Strathroy reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°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)
12616
22616
32616
42616
52616
62615
72615
82615
92615
102515
112515
122515
132515
142515
152515
162515
172515
182515
192515
202515
212515
222515
232515
242515
252514
262514
272514
282514
292414
302414
312414

How August really feels in Strathroy

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.

Strathroy weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -8°7011.89.49.20.0
Feb-0° / -8°579.58.210.20.0
Mar / -4°68115.711.60.5
Apr13° / 9112.32.313.13.2
May19° / 9912.7014.45.6
Jun24° / 14°10012015.16.5
Jul26° / 16°9812.2014.86.4
Aug25° / 15°8510.8013.86.7
Sep22° / 11°8610.2012.36.6
Oct14° / 8611.70.210.84.2
Nov / 77113.89.51.0
Dec / -5°6611.28.28.90.0

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 22% of August, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25743
35743
45743
55644
65644
75644
85545
95644
105644
115545
125545
135644
145743
155644
165644
175644
185644
195644
205644
215545
225644
235644
245644
255644
265644
275743
285743
295743
305743
315644

Chance of precipitation in August

Any precipitation

Strathroy gets around 85 mm of rain over 10.8 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 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
240
339
439
538
638
737
837
937
1036
1136
1236
1336
1435
1535
1635
1735
1835
1935
2034
2134
2234
2334
2434
2533
2633
2733
2833
2933
3033
3133

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 28% of days. Sticky, muggy-or-worse air turns up on roughly 22% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1192829195
2202829194
3202828194
4202828194
5212828194
6212828194
7222728194
8222727194
9232727184
10232727184
11242826184
12242826184
13242826184
14242826184
15242926183
16242926183
17242926183
18242926183
19242925183
20242925193
21242925193
22252924193
23252924203
24262923202
25262922202
26272922202
27282921202
28302920193
29312819193
30322819193
31332818183

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 10 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
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 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 78 minutes over August. Sunrise moves from 5:21 AM to 5:54 AM, and sunset from 7:44 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:217:44
214.35:227:43
314.35:237:42
414.35:247:40
514.25:257:39
614.25:267:38
714.25:287:37
814.15:297:35
914.15:307:34
1014.05:317:32
1114.05:327:31
1213.95:337:30
1313.95:347:28
1413.95:357:27
1513.85:367:25
1613.85:377:24
1713.75:397:22
1813.75:407:21
1913.65:417:19
2013.65:427:17
2113.55:437:16
2213.55:447:14
2313.55:457:13
2413.45:467:11
2513.45:487:09
2613.35:497:07
2713.35:507:06
2813.25:517:04
2913.25:527:02
3013.15:537:01
3113.15:546:59

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.53 kWh/m².

For context, solar energy here swings from a low near 1.32 kWh/m² to a high of 6.56 kWh/m² in June across the year — August's 5.53 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
135.6Bright
145.6Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.4Bright
205.4Bright
215.3Bright
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 Strathroy?

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
6.1
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Strathroy for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Strathroy in August

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

In August, Strathroy sees daytime highs around 25°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 Strathroy in August

The nearest coast averages about 23°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 42 km away) is warmest in August at about 23°C and coldest in February near 1°C.

It's comfortable for a long swim from Jul 5 to Sep 20 — about 2.6 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr4Bracing
May10Bracing
Jun17Cool
Jul22Refreshing
Aug23Refreshing
Sep21Refreshing
Oct16Cool
Nov11Bracing
Dec6Bracing

UV index in Strathroy 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 Strathroy peaks around June 23 at about 9 (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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Strathroy?

Strathroy sits at 43.0°N, 81.6°W, 229 m above sea level, in Canada. The nearest listed city is London, 32 km away.

Topography around Strathroy

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

Within 3 km, the terrain around Strathroy has only modest variations in elevation — a maximum elevation change of 29 m around an average of 232 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 92 m; within 80 km, only modest variations in elevation — a maximum elevation change of 241 m.

The land around Strathroy is covered by cropland (37%) and trees (27%) within 3 km, cropland (72%) within 16 km, and cropland (53%) and water (28%) within 80 km.

3 km
29 m
16 km
92 m
80 km
241 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: London 32 km · St. Thomas 41 km · Sarnia 64 km · Port Huron 65 km · Stratford 71 km · Woodstock 74 km · Tillsonburg 74 km · Chatham 76 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 Strathroy (42.9551°, -81.6223°, elevation 229 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).