Thorncliffe Park weather in May

In May, Thorncliffe Park sees average daytime highs of 13°C and overnight lows near 8°C, with 78 mm of rain across 10.4 wet days and about 14.5 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 10°C in the first days to 15°C by the end. The sky is clear or mostly clear about 28% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of May to 15 hours by month's end. Set against the rest of the year, May is Thorncliffe Park's 5th-clearest and 9th-windiest month. For the whole year in context, see Thorncliffe Park's year-round climate.

Daytime high
13°
6th warmest
Overnight low
7th coldest
Rainfall
78 mm
10.4 wet days
Daylight
14 h 30 min
4:58 AM – 7:29 PM
Cloud cover
61%
5th clearest
Wind
15 km/h
9th windiest
Solar energy
5.9 kWh/m²
Travel score
3.5
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 10°C in the first days to 15°C by the end.

A typical May day in Thorncliffe Park reaches about 13°C in the afternoon and slips back to 8°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 17°C. Set against its neighbours, May runs about 5°C warmer than April and about 6°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1105
2105
3105
4106
5116
6116
7116
8116
9116
10117
11127
12127
13127
14127
15127
16138
17138
18138
19138
20138
21149
22149
23149
24149
251510
261510
271510
281510
291511
301611
311611

How May really feels in Thorncliffe Park

Once humidity and wind are folded in, May 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

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Thorncliffe Park weather by month

How May compares with the rest of the year at a glance. May is the 6th-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° / -7°8111.899.10.0
Feb-1° / -7°588.66.610.20.0
Mar / -4°689.94.711.60.0
Apr / 92111.713.21.0
May13° / 7810.4014.53.5
Jun19° / 14°7710.3015.26.0
Jul23° / 18°689.6014.97.0
Aug24° / 19°678.9013.87.2
Sep20° / 15°819.1012.36.5
Oct14° / 9111.90.110.83.8
Nov / 8811.32.59.51.0
Dec / -2°81126.68.80.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34357
44357
54357
64258
74357
84357
94357
104357
114456
124456
134555
144456
154456
164555
174456
184555
194456
204456
214456
224555
234654
244753
254753
264654
274654
284654
294654
304654
314654

Chance of precipitation in May

Any precipitation

Thorncliffe Park gets around 78 mm of rain over 10.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
235
335
435
535
635
734
834
934
1034
1134
1234
1334
1434
1534
1634
1733
1833
1933
2033
2132
2232
2332
2432
2532
2632
2732
2832
2933
3033
3133

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
59910
69910
79910
89910
99910
109910
119910
129910
139820
149820
159820
169730
179730
189640
199451
209451
219361
229271
239082
248992
2588102
2687112
2785123
2884133
2984133
3083143
3181154

Wind in May

Winds average 15 km/h in May.

Across May, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 54 min at the start of May to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 5:17 AM to 4:45 AM, and sunset from 7:12 PM to 7:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:177:12
214.05:167:13
314.05:147:14
414.05:137:15
514.15:127:17
614.15:107:18
714.25:097:19
814.25:087:20
914.25:067:21
1014.35:057:22
1114.35:047:24
1214.45:037:25
1314.45:017:26
1414.45:007:27
1514.54:597:28
1614.54:587:29
1714.64:577:30
1814.64:567:31
1914.64:557:33
2014.74:547:34
2114.74:537:35
2214.74:527:36
2314.84:517:37
2414.84:507:38
2514.84:507:39
2614.84:497:40
2714.94:487:41
2814.94:477:42
2914.94:477:42
3015.04:467:43
3115.04:457:44

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.9 kWh/m².

For context, solar energy here swings from a low near 1.28 kWh/m² to a high of 6.28 kWh/m² in June across the year — May's 5.9 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.6Bright
45.6Bright
55.6Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
186.0Bright
196.0Bright
206.0Intense
216.0Intense
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Thorncliffe Park?

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

3.5
Sightseeing
6th-best month of the year
0.1
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Thorncliffe Park.

What to pack for Thorncliffe Park in May

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

In May, Thorncliffe Park sees daytime highs around 13°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Thorncliffe Park in May

The nearest coast averages about 7°C in May — 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 February near 3°C.

It's comfortable for a long swim from Jul 20 to Sep 2 — about 1.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr4Bracing
May7Bracing
Jun15Bracing
Jul20Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov8Bracing
Dec5Bracing

UV index in Thorncliffe Park in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Thorncliffe Park peaks around June 20 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 20UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul7Very high
Aug6High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Thorncliffe Park in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Thorncliffe Park is worst in May — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMay 2021 µg/m³Dec 1010 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar18Moderate
Apr18Moderate
May22Moderate
Jun20Moderate
Jul20Moderate
Aug17Moderate
Sep17Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Thorncliffe Park?

Thorncliffe Park sits at 43.7°N, 79.3°W, 128 m above sea level, in Canada. The nearest listed city is Leaside-Bennington, 1.0 km away.

Topography around Thorncliffe Park

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

Within 3 km, the terrain around Thorncliffe Park has only modest variations in elevation — a maximum elevation change of 97 m around an average of 131 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 171 m; within 80 km, significant variations in elevation — a maximum elevation change of 520 m.

The land around Thorncliffe Park is covered by artificial surfaces (50%) and trees (44%) within 3 km, artificial surfaces (43%) and water (31%) within 16 km, and water (31%), trees (26%) and cropland (21%) within 80 km.

3 km
97 m
16 km
171 m
80 km
520 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Leaside-Bennington 1.0 km · Flemingdon Park 2.0 km · Danforth East York 3.0 km · Mount Pleasant East 3.0 km · O'Connor-Parkview 3.0 km · Banbury-Don Mills 3.0 km · Mount Pleasant West 4.0 km · Victoria Village 4.0 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 Thorncliffe Park (43.7077°, -79.35°, elevation 128 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).