Nelson weather in December
Long-run climate averages for Nelson, New Zealand in December, plus what the forecast models say for the days ahead.
In December, Nelson averages 22°C by day and 14°C at night. The wettest month is usually October.
December in Nelson averages a daytime high of 22°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 Nelson sees roughly 1318 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 Nelson forecast with every model compared and how much they currently agree.
Nelson weather by month
what to expect in Nelson through the yearHere is Nelson'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 Nelson by season.
Bottom line: over the last 30 days the German model has been the most accurate forecast for Nelson, scoring 89/100 on our CheckWeather Score, ahead of the European at 86. See the full NZ accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Nelson in December?
Is December a good time to visit Nelson?
Does it rain a lot in Nelson in December?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .