Mild
Average highs are around 21°C, so days are mild rather than hot.
January verdict
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 48mm, which is relatively low for holiday planning.
Monthly averages
Temp
21°C
Rain
48mm
Sun
5.8h
Sea
15°C
Weather score
42
Mixed
Mild
Average highs are around 21°C, so days are mild rather than hot.
Drier
Rainfall averages 48mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Compare Oamaru, New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
January21°C average high
January is one of Oamaru's warmest months, with daytime heat above the yearly average.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
January48mm average rain
January 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.
January5.8 hours average sun
January 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.
January15°C average sea
January is one of Oamaru's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJanuary to March and December
Sea temperatures are usually near 15°C in this stretch, so swimming comfort is at its strongest.
January42 weather score
January is one of Oamaru's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to February and November to December
These months have the strongest weather score in the monthly averages.