London, Ontario weather in June
Temperature, rain and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Excellent
Best time to visit: May – September
What is the weather like in London, Ontario in June?
In June, London, Ontario is warm: daytime highs average 24 °C, and nights cool down to about 15 °C. The sun shines for around 9 hours a day. Rain is frequent, with about 12 rainy days and 103 mm in total. All in all, June is an excellent month for a holiday in London, Ontario.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 15 h 20 min05:45 – 21:05
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 5 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 56 %on averageAll months
- Hot days
- 1 day30 °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 %100 %
- Sunshineweight 20 %92 %
- Few rainy daysweight 30 %41 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in June
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
London, Ontario in June: quick answers
Is London, Ontario hot in June?
Warm rather than hot: in June, daytime highs in London, Ontario average 24 °C and nights cool to about 15 °C. On about 1 days the thermometer climbs to 30 °C or more.
Does it rain much in London, Ontario in June?
Rain is frequent, with about 12 rainy days and 103 mm in total.
London, Ontario month by month
The whole year in London, OntarioAll destinations: CanadaWhere to go in June
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