Cool
Average highs are around 15°C, so pack for cooler days.
September verdict
Nelson (New Zealand), New Zealand in September
Weather score25Poor
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 111mm, so some wet days are possible.
September weather
Monthly averages
Temp
15°C
Rain
111mm
Sun
5.9h
Sea
13°C
Weather score
25
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 111mm, so some wet days are possible.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Weather map
Compare Nelson (New Zealand), New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September15°C average high
September is on the cooler side of Nelson (New Zealand)'s year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
September111mm average rain
September sits near Nelson (New Zealand)'s yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September5.9 hours average sun
September sits close to Nelson (New Zealand)'s yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary to February and December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September13°C average sea
September is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to March and December
Sea temperatures are usually near 19°C in this stretch, so swimming comfort is at its strongest.
Weather score
September25 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to February
These months have the strongest weather score in the monthly averages.