Richmond Hill weather in September
Long-run climate averages for Richmond Hill, Ontario in September, plus what the forecast models say for the days ahead.
In September, Richmond Hill averages 23°C by day and 13°C at night. The wettest month is usually April.
September in Richmond Hill averages a daytime high of 23°C and an overnight low of 13°C, which reads as warm for this part of the world. Across the whole year Richmond Hill sees roughly 1005 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 Richmond Hill forecast with every model compared and how much they currently agree.
Richmond Hill weather by month
what to expect in Richmond Hill through the yearHere is Richmond Hill'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 Richmond Hill by season.