London weather in June
Long-run climate averages for London, Ontario in June, plus what the forecast models say for the days ahead.
In June, London averages 24°C by day and 14°C at night. The wettest month is usually August.
June in London averages a daytime high of 24°C and an overnight low of 14°C, which reads as warm for this part of the world. It is among the three warmest months of the year here. Across the whole year London sees roughly 1008 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live London forecast with every model compared and how much they currently agree.
London weather by month
what to expect in London through the yearHere is London's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to London by season.
Bottom line: over the last 30 days the European model has been the most accurate forecast for London, scoring 91/100 on our CheckWeather Score, ahead of the American at 80. See the full CA accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is London in June?
Is June a good time to visit London?
Does it rain a lot in London in June?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .