Dunedin weather in September
Long-run climate averages for Dunedin, New Zealand in September, plus what the forecast models say for the days ahead.
In September, Dunedin averages 13°C by day and 5°C at night. The wettest month is usually October.
September in Dunedin averages a daytime high of 13°C and an overnight low of 5°C, which reads as cool for this part of the world. Across the whole year Dunedin sees roughly 1027 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 Dunedin forecast with every model compared and how much they currently agree.
Dunedin weather by month
what to expect in Dunedin through the yearHere is Dunedin'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 Dunedin by season.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Dunedin, scoring 88/100 on our CheckWeather Score, ahead of the American at 77. See the full NZ accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Dunedin in September?
Is September a good time to visit Dunedin?
Does it rain a lot in Dunedin in September?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .