Cool
Average highs are around 19°C, so pack for cooler days.
December verdict
Chatham Islands, New Zealand in December
Weather score48Mixed
Mixed for holiday weather
Average highs are around 19°C, so pack for cooler days. Sunshine averages 0h per day, so this is not one of the brighter months. Rainfall averages 62mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
19°C
Rain
62mm
Sun
0h
Sea
14°C
Weather score
48
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 62mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 0h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare Chatham Islands, New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December19°C average high
December sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJanuary to March
This stretch sets the upper range for average daytime heat.
Rain
December62mm average rain
December is one of Chatham Islands' driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to May and July to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December0 hours average sun
December is close to Chatham Islands' usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Sea temperature
December14°C average sea
December is close to Chatham Islands' yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to April
Sea temperatures are usually near 15°C in this stretch, so swimming comfort is at its strongest.
Weather score
December48 weather score
December scores above Chatham Islands' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to February and December
These months have the strongest weather score in the monthly averages.