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Oamaru Weather in July

July in Oamaru typically sees daytime highs of 10°C (50°F) and nighttime lows of 4°C (39°F). Expect some rainfall during the month.

Rainfall in Oamaru in July

Expect around 11 days of rain based on historical data, with 53 mm (2.1 in) average. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Oamaru in July

Daytime highs in Oamaru in July reach 10°C (50°F), with nights around 4°C (39°F). Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. On average, July has the most moderate temperatures of the year.

July in Oamaru can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

Oamaru Temperature in July

Min Temperature

4°C (39°F)

Max Temperature

10°C (50°F)

Chance of Rain

36%

Precipitation

53 mm (2.1 in)

Rainy days

11 days

Oamaru Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Oamaru - and find the best time to visit.

January

18°C (64°F)View January → February

18°C (64°F)View February → March

17°C (63°F)View March → April

15°C (59°F)View April → May

13°C (55°F)View May → June

11°C (52°F)View June → July

10°C (50°F)View July → August

11°C (52°F)View August → September

13°C (55°F)View September → This monthOctober

14°C (57°F)View October → November

15°C (59°F)View November → December

17°C (63°F)View December →

Best Time to Visit Oamaru →

Daily Historical Temperatures

47-year average (1976-2025)

Based on our historical records, temperatures in Oamaru typically stay consistent throughout July, with daily highs averaging around 10°C (50°F). Nights are cold, with lows around 5°C (41°F).

Average temperatures in July

Historical weather records for Oamaru in July

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 July

The extremes listed below come from historical weather data collected in Oamaru from 2006 through 2026.

The hottest July day on record in Oamaru reached 17°C (63°F) (July 18, 2023).
The lowest daytime temperature in July was 5°C (41°F), recorded on July 6, 2007.
Nighttime temperatures dropped to -3°C (27°F) on July 24, 2020, marking the coldest July night on record.

Best Places in New Zealand in July

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 July →

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in July: blue is cold, red is hot.

Marker color shows total monthly precipitation in July: pale blue is dry, deep blue is wet.

What to Wear in Oamaru in July

Pack for changing conditions in Oamaru in July. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days.