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Hamilton Weather in August

With daytime temperatures of 16°C (61°F) and nighttime lows of 6°C (43°F), August in Hamilton brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 128 mm (5 in) falls on average.

Rainfall in Hamilton in August

You can expect rain on roughly 18 days based on historical data, averaging 128 mm (5 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Hamilton in August

In August, expect moderate temperatures in Hamilton, with highs of 16°C (61°F) and lows of 6°C (43°F) at night. The month of August belongs to the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 6°C (43°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Hamilton in August

The area enjoys a balanced 145 hours of sunlight, ensuring it's neither too overcast nor too sunny.

August in Hamilton has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

Hamilton Temperature in August

Min Temperature

6°C (43°F)

Max Temperature

16°C (61°F)

Chance of Rain

59%

Precipitation

128 mm (5 in)

Rainy days

18 days

Humidity

88%

Sunshine

145 hours

Percentage Sunshine

Hamilton Weather by Month

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

January

25°C (77°F)View January → February

25°C (77°F)View February → March

23°C (73°F)View March → April

21°C (70°F)View April → May

18°C (64°F)View May → June

16°C (61°F)View June → July

15°C (59°F)View July → August

16°C (61°F)View August → September

17°C (63°F)View September → This monthOctober

18°C (64°F)View October → November

20°C (68°F)View November → December

22°C (72°F)View December →

Best Time to Visit Hamilton →

Historical weather records for Hamilton in August

Browse day-by-day weather records for Hamilton spanning 23 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Hamilton historical weather extremes in August

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

The hottest August day on record in Hamilton reached 19°C (66°F) (August 31, 2024).
On August 15, 2011, Hamilton saw its coldest August day with temperatures maxing out at 8°C (46°F).
Hamilton registered its coldest August night on August 6, 2026, with temperatures dropping to -5°C (23°F).
The wettest day in August Hamilton was on August 28, 2021 with 46 mm (1.8 in) of precipitation.

Best Places in New Zealand in August

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 August →

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 August: blue is cold, red is hot.

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

What to Wear in Hamilton in August

Pack for changing conditions in Hamilton in August. 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. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses could come in handy during the sunnier parts of your trip.