City break

Greater Sudbury weather in May

Temperature, rain and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

76

Holiday weather in May

Good

Best time to visit: May – September

What is the weather like in Greater Sudbury in May?

In May, Greater Sudbury is mild: daytime highs average 17 °C, and nights cool down to about 6 °C. The sun shines for around 8 hours a day. Rain is frequent, with about 10 rainy days and 69 mm in total. All in all, May is a good month for a holiday in Greater Sudbury.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score307681
Day8°17°22°
Night−2°6°12°
Sun7 h8 h8 h
Rain days101011

More details for May

Daylight
14 h 58 min05:51 – 20:49
UV index
8 · very highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
17 km/haverage daily peakAll months
Cloud cover
62 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC−4America/Toronto

How the score comes together

  • Temperatureweight 50 %90 %
  • Sunshineweight 20 %75 %
  • Few rainy daysweight 30 %54 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in May

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella

Greater Sudbury in May: quick answers

Is Greater Sudbury hot in May?

No. In May, Greater Sudbury is mild: daytime highs average 17 °C and nights drop to about 6 °C.

Does it rain much in Greater Sudbury in May?

Rain is frequent, with about 10 rainy days and 69 mm in total.

Greater Sudbury month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences