Climate and monthly weather forecast
Hamilton, New Zealand

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The climate of Hamilton

Hamilton, New Zealand falls under the Cfb climate zone according to the Köppen climate classification. This hints at Marine west coast conditions characterized by a warm summer. The geographical position of the city, nestled on the banks of the Waikato River, influences its prevailing weather conditions.

The climate in Hamilton throughout the year experiences a balmy range with temperatures fluctuating from 4°C (39.2°F) to 24.3°C (75.7°F). Meanwhile, relative humidity remains reasonably steady, exhibiting minor variations between a peak of 91.4% to a low of 79.1%. As with precipitation, Hamilton sees a pretty scattered pattern across the months. The precipitation level swings from 69mm (2.72") to 118mm (4.65"), whereby the number of rainfall days varies from 6.2 days to 13.3 days.

A unique weather condition is the concentration of rainfall in winter with June recording the highest average rainfall of 118mm (4.65"). However, the winter months of June and July also witness a lower daylight duration accounting for 9.6 hours and 9.8 hours respectively. The sunniest months of December and January offer 14.7 and 14.4 hours of sunlight a day respectively, with temperature highs scaling to 21.9°C (71.4°F) and 23.9°C (75°F).

The best time to visit Hamilton

The best time to visit Hamilton is primarily during the summer months of December through February. These are the warmest months featuring the highest average temperature ranging from 19.8°C (67.6°F) to 24.3°C (75.7°F) with a substantial amount of daylight hours, from 14.2 hours to 14.7 hours. This allows visitors to explore the outdoor attractions and activities that Hamilton has to offer. During these months, despite a notable amount of rainfall, the number of rainy days remains relatively low, from 10.5 days to 7.8 days, providing plenty of clear, sunny days.

The worst time to visit Hamilton

The least favorable period to visit Hamilton would be the cooler winter months from June to August. Average temperatures plummet to their lowest, between 4°C (39.2°F) and 14.3°C (57.7°F), with diminished daylight extending from 9.6 hours to 10.7 hours. Moreover, this period experiences its peak rainfall, from 113mm (4.45") to 118mm (4.65"), and the number of rainy days from 12.6 days to 13.3 days, limiting outdoor activities.

Spring weather in Hamilton

Springtime in Hamilton, spanning September through November, introduces slightly cooler temperatures compared to summer. The average high temperature shifts from 16.5°C (61.7°F) to 19.8°C (67.6°F), while the low ranges from 6.7°C (44.1°F) to 9.9°C (49.8°F). Rainfall is moderately high during these months, from 92mm (3.62") to 85mm (3.35"), but with a reduced number of rainfall days compared to the winter, from 11.7 days to 10.7 days.

Summer weather in Hamilton

Hamilton’s summer, from December to February, is marked by comfortable warmth giving rise to temperatures ranging from 13.2°C (55.8°F) to 24.3°C (75.7°F). Average daylight extends from 13.1 hours to 14.7 hours, lending itself to more opportunities for outdoor recreation. The city records a moderate rainfall of 69mm (2.72") to 101mm (3.98") across these months, with a fairly limited number of rainy days, around 10.5 days to 7.8 days.

Autumn weather in Hamilton

The autumn months from March to May in Hamilton usher in cooler weather with temperatures decreasing gradually from 19.9°C (67.8°F) to 16.9°C (62.4°F). Corresponding low temperatures fluctuate between 9.1°C (48.4°F) and 6.9°C (44.4°F). Rainfall tends to increase during this time, from 80mm (3.15") to 100mm (3.94"), while the number of rainy days escalates from 8.4 days to 11 days.

Winter weather in Hamilton

Winter season brings the coldest months to Hamilton, extending from June to August. Within this period, the high temperature only reaches between 13.8°C (56.8°F) and 14.3°C (57.7°F), with low temperatures hitting the annual minimum from 4°C (39.2°F) to 4.9°C (40.8°F). This season witnesses the heaviest rainfall, from 103mm (4.06") to 118mm (4.65"), coupled with a high number of rainfall days from 12.8 days to 13.3 days. Expected daylight duration drops to its lowest at 9.6 hours in June, slightly improving to 10.7 hours by August.

Weather in January

People throng Hamilton, New Zealand in January to experience its summer. Spacious parks, white sandy beaches, and sublime coastlines all grant some respite from the warmer temperatures registered as high as 23.9°C (75°F). Garden enthusiasts find it an optimal month to admire the vivid colors of the season, where sun-drenched landscapes create spectacular scenery. Weather in January »

Weather in February

The transition from January to February in Hamilton does not warrant a significant change in weather patterns. With the sun showing no signs of retreat, February maintains its reputation as a particularly coveted month for outdoor activities. Weather in February »

Weather in March

March sees the commencement of the fall in Hamilton with substantial alterations in meteorological elements. Reflecting muted hues of brown and gold, trees of this vibrant city start shedding their leaves. A tertiary dip in daily temperatures is observed, meanwhile, there is an elevation in rainfall levels to 79mm (3.11"). Weather in March »

Weather in April

In April, the weather in Hamilton treads further down the autumn pathway. Seasonal changes become more pronounced as trees dwindle into their skeletal winter forms. The average high temperature drops to 19.9°C (67.8°F), establishing it as the month of the year where the temperature beginning to cool significantly. Weather in April »

Weather in May

May in Hamilton paves the way for winter reminders. Gusty winds meandering their way through the city and resulting in an increased number of rainfall days signal the imminent arrival of the coldest season. Consequently, the temperature fluctuation is evidently visible as the daytime high descends to 16.9°C (62.4°F). Weather in May »

Weather in June

June marks the official start of winter in Hamilton. The promise of cool temperatures, short days, and long woollen clothes enlist this period. It is in this month that the city experiences only 14.3°C (57.7°F) as the highest average temperature. Weather in June »

Weather in July

July is characterized by the coldest weather conditions in Hamilton. With biting winds, standstill water bodies, and icy paths, the city envelops itself in a winter wrap. Notably, the mean temperature figures record a low of 13.8°C (56.8°F) revealing the chilliness of the month. Weather in July »

Weather in August

As the grip of winter starts to loosen in August, Hamilton experiences a gradual change in weather conditions. Chilled mornings give way to sunny, albeit cool, afternoons and people start venturing out without their heavy coats. Weather in August »

Weather in September

September in Hamilton signals the arrival of spring and an overall change in mood. Birds chirping their melodic tune and flowers painting the city in vibrant colors serve as musical and vibrant reminders of the new season respectively. Weather in September »

Weather in October

October solidifies Hamilton's journey into spring. This period witnesses the complete transformation of the city's landscape into a canvas of bright colors with a variety of blooming flowers. In line with transitional weather conditions, October sees an increase in average maximum temperatures reaching 17.9°C (64.2°F), thereby amplifying outdoor activities. Weather in October »

Weather in November

November in Hamilton is a precursor to summer. With clear blue skies and pleasant temperatures, the city's atmosphere is imbued with excitement and anticipation. Recording an uptick in temperature values, the city experiences its highs at around 19.8°C (67.6°F). Weather in November »

Weather in December

December represents the onset of summer in Hamilton. Combining sunny skies and warm temperatures, it heralds the height of the outdoor festival and holiday season. With daily high temperatures climbing to approximately 21.9°C (71.4°F), the city revels in the summer glory. Weather in December »

Frequently asked questions

How much does it rain in Hamilton?

Throughout the year, there are 124.4 rainfall days, and 1108mm (43.62") of precipitation is accumulated.

What month has the most sunshine in Hamilton?

January has the most sunshine of the year in Hamilton, with an average of 7.4h of sunshine.

What is the warmest month in Hamilton?

Hamilton's temperatures tend to reach their peak averages in February, with a high of 24.3°C (75.7°F) and a low of 13.2°C (55.8°F).

What is the driest month in Hamilton?

February is the month with the least rainfall. Rain falls for 6.2 days and accumulates 69mm (2.72") of precipitation.

When is Daylight Saving Time (DST) in Hamilton?

On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends, and the time zone changes from NZDT to NZST. The next Daylight Saving Time starts on Sunday, 29. September 2024, at 2:00 am, and the time zone reverts from NZST to NZDT.

What is the most humid month in Hamilton?

With an average relative humidity of 91.4%, June is the most humid month in Hamilton.

What is the month with the shortest days in Hamilton?

With an average of 9h and 36min of daylight, June has the shortest days of the year in Hamilton.

What is the month with the least sunshine in Hamilton?

The month with the least sunshine in Hamilton, New Zealand, is June, with an average of 3.8h of sunshine.

What time of the year is the coldest in Hamilton?

Hamilton witnesses the coldest weather in July, with temperatures averaging a high of 13.8°C (56.8°F) and a low of 4°C (39.2°F).

What is the wettest month in Hamilton?

July is the month with the most rainfall in Hamilton, New Zealand. Rain falls for 12.8 days and accumulates 118mm (4.65") of precipitation.

What is the least humid month in Hamilton?

November is the least humid month in Hamilton, with an average relative humidity of 79.1%.

When are the longest days in Hamilton?

The month with the longest days is December, with an average of 14h and 42min of daylight.

Average temperature
Hamilton, New Zealand

Average temperature - Hamilton, New Zealand

The warmest month (with the highest average high temperature) is February (24.3°C).
The month with the lowest average high temperature is July (13.8°C).

The month with the highest average low temperature is February (13.2°C).
The coldest month (with the lowest average low temperature) is July (4°C).

Average humidity
Hamilton, New Zealand

Average humidity - Hamilton, New Zealand

The month with the highest relative humidity is June (91.4%).
The month with the lowest relative humidity is November (79.1%).

Average rainfall
Hamilton, New Zealand

Average rainfall - Hamilton, New Zealand

The wettest month (with the highest rainfall) is July (118.2mm).
The driest month (with the least rainfall) is February (68.7mm).

Average rainfall days
Hamilton, New Zealand

Average rainfall days - Hamilton, New Zealand

The month with the highest number of rainy days is August (13.3 days).
The month with the least rainy days is February (6.2 days).

Average daylight / Average sunshine
Hamilton, New Zealand

Average daylight / Average sunshine - Hamilton, New Zealand

The month with the longest days is December (Average daylight: 14h and 42min).
The month with the shortest days is June (Average daylight: 9h and 36min).

The month with the most sunshine is January (Average sunshine: 7h and 24min).
The month with the least sunshine is June (Average sunshine: 3h and 48min).

Hamilton, New Zealand

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