Mild
Average highs are around 20°C, so days are mild rather than hot.
December verdict
Mixed for holiday weather
Average highs are around 20°C, so days are mild rather than hot. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 49mm, which is relatively low for holiday planning.
Monthly averages
Temp
20°C
Rain
49mm
Sun
5.9h
Sea
15°C
Weather score
41
Mixed
Mild
Average highs are around 20°C, so days are mild rather than hot.
Drier
Rainfall averages 49mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Compare Timaru, New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
December20°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.
December49mm average rain
December is close to Timaru's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
December5.9 hours average sun
December is one of Timaru'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.
December15°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 17°C in this stretch, so swimming comfort is at its strongest.
December41 weather score
December scores above Timaru's 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.