Oamaru Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Oamaru.
Climate overview of Oamaru
Temperatures in Oamaru, Otago, New Zealand, shift moderately through the seasons. The warmest month is February at 18°C (64°F), and the coolest is July at 10°C (50°F).
The city receives around 814 mm (32 in) of rainfall per year. December is the wettest month and September the driest.
Oamaru Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Oamaru - and find the best time to visit.
Monthly Temperature in Oamaru
The weather in Oamaru changes moderately throughout the year, offering enough variation to appreciate each season. On average, daytime temperatures range from a pleasant 18°C (64°F) in February to a chilly 10°C (50°F) in July.
Nighttime temperatures range from 12°C (54°F) in February to 4°C (39°F) in July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Oamaru
Generally, Oamaru receives mid-range precipitation levels, with 814 mm (32 in) annually. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 92 mm (3.6 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, September, still receives a respectable 53 mm (2.1 in) of rainfall. For more details, please visit our Oamaru Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Oamaru
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January and February
- Warmest weather: January, February, March and December
Frequently asked questions about the climate in Oamaru
What is the best time to visit Oamaru?
January and February typically offer the most optimal weather in Oamaru. In contrast, July tends to have less optimal conditions.
What temperatures can I expect in Oamaru?
Daytime highs range from 10°C (50°F) in July to 18°C (64°F) in February. Nighttime lows range from 4°C (39°F) to 12°C (54°F).
How much rain does Oamaru get?
Annual rainfall is around 814 mm (32 in). December is the wettest month with 92 mm (3.6 in), while September is the driest with 53 mm (2.1 in).
Oamaru 3-Day Forecast
Oamaru 3-Day Forecast
Oamaru on the map
Oamaru is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Auckland
15°C (59°F) Paihia16°C (61°F) Wellington13°C (55°F) Rotorua13°C (55°F) Christchurch12°C (54°F) Nelson12°C (54°F) Taupo11°C (52°F) Queenstown3°C (37°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The Tongariro Crossing in New Zealand
It is called the most beautiful walk in New Zealand, the Tongariro Crossing. The official hiking season starts late October until end of April.
White-water sledge and raft in Rotorua
We recommend to white-water sledge and raft in Rotorua in summer (January, February) when the Glacier melt fills the rivers. This is the best time.