Cool
Average highs are around 19°C, so pack for cooler days.
December verdict
Oamaru, New Zealand in December
Weather score37Poor
Poor for holiday weather
Average highs are around 19°C, so pack for cooler days. Sunshine averages 5.7h per day, enough for a balanced month. Rainfall averages 53mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
19°C
Rain
53mm
Sun
5.7h
Sea
14°C
Weather score
37
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 53mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.7h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare Oamaru, 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 and December
This stretch sets the upper range for average daytime heat.
Rain
December53mm average rain
December is close to Oamaru's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
December5.7 hours average sun
December is one of Oamaru's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJanuary to February and October to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December14°C average sea
December sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to March and December
Sea temperatures are usually near 15°C in this stretch, so swimming comfort is at its strongest.
Weather score
December37 weather score
December sits close to Oamaru's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to February and November to December
These months have the strongest weather score in the monthly averages.