Cool
Average highs are around 12°C, so pack for cooler days.
September verdict
Poor for holiday weather
Average highs are around 12°C, so pack for cooler days. Sunshine averages 4.9h per day, so this is not one of the brighter months. Rainfall averages 93mm, so some wet days are possible.
Monthly averages
Temp
12°C
Rain
93mm
Sun
4.9h
Sea
11°C
Weather score
25
Poor
Cool
Average highs are around 12°C, so pack for cooler days.
Showers
Rainfall averages 93mm, so some wet days are possible.
Limited sun
Sunshine averages 4.9h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 11°C, so the water can feel cool.
Map
Compare Marlborough (New Zealand), New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
September12°C average high
September is on the cooler side of Marlborough (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.
September93mm average rain
September is wetter than Marlborough (New Zealand)'s yearly average, so flexible plans matter more.
Driest monthsJanuary to March
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September4.9 hours average sun
September is below Marlborough (New Zealand)'s yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
September11°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
Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.
September25 weather score
September scores below Marlborough (New Zealand)'s yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to February
These months have the strongest weather score in the monthly averages.