Hamilton Temperature by Month
Hamilton, Waikato, New Zealand has an average annual maximum temperature of 20°C (68°F), with moderate seasonal shifts ranging from 15°C (59°F) in July to 25°C (77°F) in February. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Hamilton Monthly Temperatures
The weather in Hamilton changes moderately throughout the year, offering enough variation to appreciate each season. Nights are cooler, with lows ranging from 15°C (59°F) to 6°C (43°F).
The chart below illustrates the average maximum day and minimum night temperatures in Hamilton by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. February, the warmest month of the year, receives 195 hours of sunshine.
The chart below shows the average temperature throughout the year:
Historical Hamilton Temperatures: 2004-2026
Browse day-by-day temperature records for Hamilton spanning 23 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Hamilton vs New Zealand
The map below shows the annual temperature across New Zealand. You can also select individual months if you want to compare a specific time of year.
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Hamilton vs World: Temperature Compared
Hamilton's average annual maximum temperature is 20°C (68°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Hamilton?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Hamilton, July is the coolest month, with average highs of 15°C (59°F) and humidity around 88% — considered very high. In February, the warmest month, temperatures average 25°C (77°F) with 85% humidity — conditions that feel very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Hamilton's weather — including monthly rainfall, sunshine hours, and humidity — visit our Hamilton climate page.
