Greater Sudbury weather in June

In June, Greater Sudbury sees average daytime highs of 23°C and overnight lows near 11°C, with 81 mm of rain across 10.8 wet days and about 15.5 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 24% of the time in June, and the air most often feels dry.

Daylight stretches from about 15 h 18 min at the start of June to 15 h 36 min by month's end. Set against the rest of the year, June is Greater Sudbury's 4th-clearest and 10th-windiest month. For the whole year in context, see Greater Sudbury's year-round climate.

Daytime high
23°
3rd warmest
Overnight low
11°
10th coldest
Rainfall
81 mm
10.8 wet days
Daylight
15 h 36 min
4:36 AM – 8:12 PM
Cloud cover
63%
4th clearest
Wind
11 km/h
10th windiest
Solar energy
6.11 kWh/m²
Travel score
6.5
out of 10

Greater Sudbury is city and unitary authority in Ontario, Canada.

Density
52/km²
people per km²
Founded
1893

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 24°C by the end.

A typical June day in Greater Sudbury reaches about 23°C in the afternoon and slips back to 11°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 28°C. Set against its neighbours, June runs about 5°C warmer than May and about 2°C cooler than July.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1219
2219
3219
4219
5219
62110
72210
82210
92210
102210
112210
122211
132211
142311
152311
162311
172311
182312
192312
202312
212312
222412
232412
242412
252412
262413
272413
282413
292413
302413

How June really feels in Greater Sudbury

Once humidity and wind are folded in, June 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

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

Greater Sudbury weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-7° / -17°5310.110.98.80.0
Feb-5° / -16°417.67.9100.0
Mar / -10°507.86.111.60.0
Apr10° / -1°709.83.913.32.1
May17° / 7210.60.414.85.4
Jun23° / 11°8110.8015.56.5
Jul25° / 14°8710.7015.26.8
Aug23° / 13°9011.20146.7
Sep19° / 9211012.45.7
Oct11° / 9412.70.910.72.3
Nov / -5°73116.39.20.1
Dec-4° / -12°59119.98.50.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 18% of June, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23763
33664
43664
53664
63862
73862
83862
93961
103961
113961
124159
134159
144159
154258
164357
174357
184456
194555
204555
214555
224456
234456
244555
254555
264555
274555
284555
294555
304555

Chance of precipitation in June

Any precipitation

Greater Sudbury gets around 81 mm of rain over 10.8 wet days in June. 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 37% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
235
335
435
535
635
735
835
935
1036
1136
1236
1336
1436
1537
1637
1737
1837
1937
2037
2137
2237
2337
2437
2537
2637
2737
2837
2937
3037

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1849610
2849610
38310610
48310610
58110720
68011720
78011720
87812730
97812730
107713730
117414840
127315840
137116940
147017940
1568181040
1667191040
1765201140
1863211240
1962221240
2060231340
2158241440
2258241440
2356251540
2455261540
2553261650
2653261650
2750271751
2850271751
2949271751
3049271861

Wind in June

Winds average 11 km/h in June.

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

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 15 h 18 min at the start of June to 15 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over June. Sunrise moves from 4:42 AM to 4:39 AM, and sunset from 8:01 PM to 8:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
115.34:428:01
215.44:418:02
315.44:408:03
415.44:408:04
515.44:398:05
615.44:398:06
715.54:388:07
815.54:388:07
915.54:388:08
1015.54:378:09
1115.54:378:09
1215.64:378:10
1315.64:378:11
1415.64:368:11
1515.64:368:12
1615.64:368:12
1715.64:368:13
1815.64:368:13
1915.64:368:13
2015.64:368:14
2115.64:378:14
2215.64:378:14
2315.64:378:14
2415.64:378:15
2515.64:388:15
2615.64:388:15
2715.64:388:15
2815.64:398:15
2915.64:398:15
3015.64:398:15

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 6.11 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.18 kWh/m² to a high of 6.11 kWh/m² in June across the year — June's 6.11 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Bright
46.0Intense
56.0Intense
66.0Intense
76.0Intense
86.0Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in June

Is June a good time to visit Greater Sudbury?

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

6.5
Sightseeing
3rd-best month of the year
4.8
Beach & pool
3rd-best month of the year

June is a reasonable time to visit Greater Sudbury for sightseeing.

What to pack for Greater Sudbury in June

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

In June, Greater Sudbury sees daytime highs around 23°C and nights near 11°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Greater Sudbury in June

The nearest coast averages about 11°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 69 km away) is warmest in August at about 19°C and coldest in March near 1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr2Bracing
May5Bracing
Jun11Bracing
Jul18Cool
Aug19Cool
Sep17Cool
Oct12Bracing
Nov8Bracing
Dec4Bracing

UV index in Greater Sudbury in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Greater Sudbury 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 January 1 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 20UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun8Very high
Jul7Very high
Aug6High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Greater Sudbury?

Greater Sudbury sits at 46.5°N, 81.0°W, 266 m above sea level, in Canada. The nearest listed city is Valley East, 17 km away.

Topography around Greater Sudbury

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

Within 3 km, the terrain around Greater Sudbury has only modest variations in elevation — a maximum elevation change of 91 m around an average of 274 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 219 m; within 80 km, significant variations in elevation — a maximum elevation change of 411 m.

The land around Greater Sudbury is covered by trees (43%) and artificial surfaces (33%) within 3 km, trees (65%) within 16 km, and trees (82%) within 80 km.

3 km
91 m
16 km
219 m
80 km
411 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
June weather nearby: Valley East 17 km · North Bay 118 km · Huntsville 188 km · Bracebridge 208 km · Midland 212 km · Owen Sound 214 km · Timmins 221 km · Collingwood 231 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 Greater Sudbury (46.49°, -80.99°, elevation 266 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).