Climate and monthly weather forecast
Cromwell, New Zealand

Cromwell, a town located in the southern segment of New Zealand, falls under the Marine west coast, warm summer climate category, or Köppen Cfb. The yearly weather characteristics in Cromwell encapsulate mild summers, cool winters, and precipitations relatively evenly distributed throughout the year.

Across the twelve months, the average temperature swings from 8°C (46.4°F) to 24.4°C (75.9°F), revealing the moderate nature of Cromwell's weather. The cooler period begins in late autumn and stretches to the early stages of spring, showcasing the lowest average temperatures from -1.5°C (29.3°F) to 4.2°C (39.6°F) between June and September.

Rainfall distribution showcases a semblance of balance throughout the year, ranging from minimal precipitation of 20mm (0.79") in August to a moderate peak of 48mm (1.89") in January. Daylight hours follow a predictable pattern, with the shortest daylight duration in June at 8.8 hours, progressively increasing to the maximum in December with 15.5 hours.

The weather patterns in Cromwell retain remarkable consistency with little outliers. The month of January distinguishes itself with the highest temperature recording of 24.4°C (75.9°F) coupled with peak rainfall averaging at 48mm (1.89"). With its average low temperature reading of -1.5°C (29.3°F), July is typically the coldest month.

Visitation to Cromwell might be optimally enjoyed in the summer months, stretching from December to February. Average temperatures during these months fall within the bracket from 20.3°C (68.5°F) to 24.4°C (75.9°F). The ample daylight hours, peaking at 15.5 hours in December, offer tourists extended periods to explore and experience the region's interesting locations.

Travelling to Cromwell could be less appealing in winter, specifically between June and August. During this period, the average low temperatures drop below the freezing point, attaining a minimum of -1.5°C (29.3°F) in July. Limited daylight hours, particularly 8.8 hours in June, might not provide enough time for touristic exploration.

In Cromwell, the spring season, spanning from September to November, exhibits a gradual increase in temperatures from 11.4°C (52.5°F) to 20.3°C (68.5°F). Daylight hours experience a steady growth from 10.3 hours in September to 14.8 hours in November. Rainfall, on the other hand, marginally progresses from 28mm (1.1") in September to 30mm (1.18") in November.

Summer in Cromwell, beginning in December and ending in February, is characterised by warm temperatures averaging from 21.3°C (70.3°F) to 24.4°C (75.9°F). Daylight peaks at 15.5 hours in December and reduces slightly to 13.9 hours by February. Rainfall varies slightly within this season, beginning at 36mm (1.42") in December and recording the highest level in January at 48mm (1.89").

Autumn in Cromwell, occurring from March to May, presents a noticeable drop in temperature from 17.6°C (63.7°F) in March to 12.7°C (54.9°F) in May. Daylight hours concurrently reduce from 13.4 hours in March to 9.5 hours in May. Rainfall during this period is relatively constant, fluctuating from 36mm (1.42") in March to 28mm (1.1") in May.

Winter weather in Cromwell, lasting from June to August, is noticeably cooler with average temperatures fluctuating from 8°C (46.4°F) in June to 11.4°C (52.5°F) in August. Daylight hours are at their shortest in June at 8.8 hours before increasing to 10.3 hours in August. Rainfall during this period remains modest and rather constant, ranging from 23mm (0.91") in July to 30mm (1.18") in August.

January in Cromwell, New Zealand is characterised by pleasant summer temperatures, offering an enjoyable atmosphere for outdoor activities. The mercury surges to its annual peak, reaching an average high of 24.4°C (75.9°F). Locals and visitors can expect lighter evenings, attributed to the longest days of the year, with a substantial daylight duration of 15.2 hours. Weather in January »

As Cromwell transitions into February, the warmth of January subtly recedes yet the conditions remain conducive to outdoor exploration. The daylight hours dip slightly to an average of 13.9 hours per day while the atmospheric trends continue to be defined by reasonably dry weather. Weather in February »

With the advent of March, Cromwell welcomes the charm of autumn as the temperatures start descending from the highs of summer. The brisk mornings often feature temperatures dipping to an average low of 7.9°C (46.2°F). These hours of sunshine undergo a decrease, registering at an average length of 12.4 hours per day paving the way for more serene and cool conditions. Weather in March »

In April, Cromwell experiences a significant shift in climate as the city gets enveloped in a colder embrace compared to preceding months. The maximum average temperature softens to a gentler 17.3°C (63.1°F), a departure from the summer heat. Weather in April »

As Cromwell steps into May, the afternoons turn considerably cooler with an average high temperature settling at 12.7°C (54.9°F). A hallmark of the month is slightly shorter days with about 9.5 hours of daylight. As the chilly nights intensify, they signal the approaching winter. Weather in May »

June witnesses the onset of winter in Cromwell, marked by a considerable dip in temperatures. The chill is more evident in the night with the thermometers registering an average low of -0.6°C (30.9°F). The city receives 30mm (1.18") of rainfall, adding to the crisp winter freshness. Weather in June »

Entering July, Cromwell snugly settles into the heart of winter. Thermometer readings stage their annual dip, notching the year’s lowest average minimum temperature at -1.5°C (29.3°F). daylight hours begin to extend again, yet they remain relatively short accounting for 9.1 hours on average. Weather in July »

As Cromwell drifts through August, signs of winter receding become increasingly pronounced. The city continues to go through cool and crisp weather, while the length of daylight climbs to an average of 10.3 hours per day. August sees a mere 20mm (0.79") of rainfall, maintaining the city's status as embracing the driest phase. Weather in August »

September sees a revival of warmer weather in Cromwell as the cool days of winter relent. The weather turns more agreeable with cooler evenings as the minimum average temperature gently rises to 2.8°C (37°F). Daylight hours increase further to about 11.8 hours, offering more sunlight and warmth during the day. Weather in September »

Rolling into October, Cromwell witnesses significant transformations in the climate scenario. The thermometer readings record an average high of 17.6°C (63.7°F), accentuating the daytime warmth. Day length extends to an average of 13.4 hours per day, giving locals and visitors ample time to indulge in the stunning outdoors. Weather in October »

November in Cromwell brings along an enhanced summery feel as the days get significantly warmer. Rainfall levels rise to capture an average of 30mm (1.18"), adding a touch of freshness to the surroundings. Longer daylight hours, evaluated at an average of 14.8 hours a day, provide generous sunlight. Weather in November »

Finally, December ushers in the peak of summer in Cromwell with warmer temperatures. The month unfolds with a gentle climb in temperature as the average high hovers around 22.5°C (72.5°F). However, rainfall increases to 36mm (1.42"), evoking a pleasant contrast to the warmth. Weather in December »