Oamaru Weather in January
January in Oamaru brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 12°C (54°F). Quite a bit of rainfall is expected, around 91 mm (3.6 in), so pack an umbrella.
Rainfall in Oamaru in January
The climate data from previous years indicates about 10 days of rain, averaging 91 mm (3.6 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Oamaru in January
January in Oamaru sees highs of 18°C (64°F) and lows of 12°C (54°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.If you favor pleasant temperatures and minimal rainfall, January is one of the best months to visit Oamaru.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Oamaru's climate page.
Oamaru Temperature in January
Min Temperature
12°C (54°F)
Max Temperature
18°C (64°F)
Chance of Rain
33%
Precipitation
91 mm (3.6 in)
Rainy days
10 days
Daily Historical Temperatures
48-year average (1976-2026)
Based on our historical records, temperatures in Oamaru typically stay consistent throughout January, with daily highs averaging around 18°C (64°F). Nights are cool, with lows around 12°C (54°F).
Average temperatures in January
Historical weather for Oamaru in January
Browse day-by-day weather records for Oamaru spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Oamaru historical weather extremes in January
Our historical data for Oamaru spans 2006 to 2025, revealing these weather extremes.
- On January 26, 2021, temperatures climbed to 32°C (90°F), marking the warmest January day on record.
- Oamaru experienced its chilliest January day on January 20, 2011, reaching only 12°C (54°F).
- The lowest overnight temperature recorded in January was 5°C (41°F) (January 24, 2024).
- The heaviest January precipitation occurred on January 13, 2012, when 47 mm (1.9 in) of precipitation fell.
Best Places in New Zealand in January
Find out more about the weather in New Zealand and which places have the best travel conditions in this month. See all of New Zealand in January →
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What to Wear in Oamaru in January
Comfortable temperatures call for an easy wardrobe in January. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags.What To Do in Oamaru in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Oamaru's climate page.
See the full Oamaru climate overview or explore weather in New Zealand.
