Last updated: August 31, 2025
December in Cromwell, New Zealand showcases a delightful summer climate with maximum temperatures reaching 24°C (76°F), ideal for outdoor activities and exploration. The average temperature hovers around 12°C (55°F), while nights can be brisk, dipping to a minimum of 1°C (34°F). Despite the warm days, the month is marked by significant precipitation, totaling 114 mm (4.5 in) over approximately 14 days. Coupled with a humidity level of 86%, these conditions create a lush and vibrant landscape, making it a perfect time for nature enthusiasts to revel in Cromwell's scenic beauty.
In Cromwell, New Zealand, December brings a delightful transition into summer, with temperatures showcasing a gentle rise compared to the preceding months. The month typically starts with a minimum of 1°C (34°F), while the average creeps up to a mild 12°C (55°F), and the pleasant afternoons can see highs of 24°C (76°F). This evolution from the colder winter months is evident, as December's weather marks a significant warmth increase, allowing residents and visitors alike to revel in the outdoor activities that the season offers. As the year draws to a close, Cromwell's climate invites a refreshing sense of vibrancy, setting the stage for a lovely summer ahead.
In Cromwell, New Zealand, December marks the peak of precipitation, with a substantial 114 mm (4.5 in) of rain falling over 14 rainy days. This uptick in rainfall follows November's already impressive total of 112 mm (4.4 in), establishing a trend of increased moisture as the year wraps up. The extension of rainy days in December, up from 13 in November, reflects a shift towards wetter conditions that characterizes the transition into summer. Notably, this month showcases some of the highest precipitation levels, surpassing February's average of 105 mm (4.1 in), indicating that December is often a time of lush landscapes and vibrant growth in the region. The consistent pattern of fluctuating but generally increasing precipitation through the latter months of the year paints a picture of a climate that embraces the richness of rain, providing essential water resources for both natural ecosystems and agriculture alike.
In Cromwell, New Zealand, December brings a notable consistency in humidity, which hovers around 86%, mirroring the levels seen throughout much of the year. The data reveals a subtle trend of elevated humidity that persists from January through December, with the highest readings peaking in the autumn months of April and May at 88%. This stable humidity level contributes to the region's lush vegetation and vibrant landscapes, characteristic of Cromwell's rich climatic tapestry. While December's humidity aligns with the annual average, it signals the transition into summer, offering a sense of warmth yet maintaining the refreshing moisture that defines the area.
As December rolls into Cromwell, New Zealand, the UV Index climbs back to an extreme level of 13, mirroring the peak values seen in January and February. This signals that sun protection is crucial, as the burn time is a mere 10 minutes—the same quick window as at the year's start. Following a gradual decline from October's very high index of 9 and a mixed bag of more moderate levels through the winter months, the trend shows a sharp return to high UV radiation as summer approaches. With sun protection measures necessary, the message is clear: stay vigilant and protect your skin during this intense sun exposure time. For further details, check out the Cromwell UV Index.
UV Risk Categories
As December blankets Cromwell, New Zealand, in radiant sunshine, the town basks in a generous 324 hours of sunlight, the highest monthly total of the year. This festive month marks a significant uptick from the preceding months, particularly following the dip in winter when daylight hours dwindled to their lowest, with June and July barely breaking 160 hours. The gradual increase in sunlight from the depths of winter through the spring months builds anticipation, peaking just in time for summer. The transition from November's impressive 302 hours to December's warm embrace illustrates not only the arrival of summer but also a celebratory end to the year, making these sunny days in Cromwell a cherished highlight for locals and visitors alike.
In Cromwell, New Zealand, December brings a 27% chance of sunny weather, making it one of the less sunny months compared to the spring and early summer heights. As the year transitions from the warmer months of November's 31% and October's 32%, the likelihood of sunshine dips slightly. This trend reflects a gradual decrease in sunny days as summer approaches its peak in January, where the chances surge to 35%. Notably, contrary to the sunniest months earlier in the year, Cromwell's December serves as a reminder that while festive gatherings may occur, clear skies can still be elusive.
In Cromwell, New Zealand, December shines brightly with an impressive 15 hours of daylight, marking the peak of the summer season. This extended daylight duration follows a rhythmic decline through the colder months, starting from a generous 15 hours in January and tapering down to 8 hours in June. As the year progresses, daylight hours gradually begin to increase again, with December's sunshine reflecting a renewed vibrancy as the year wraps up. The journey from long summer days to the shorter winter light showcases the unique rhythm of Cromwell's seasonal changes, inviting both residents and visitors to embrace the beauty of its sunlit moments.
As December arrives in Cromwell, New Zealand, the winds pick up a refreshing pace, clocking in at an average speed of 2.2 m/s (5 mph). This invigorating shift mirrors a pattern seen throughout the year, where wind speeds tend to fluctuate slightly yet consistently. Despite a minor dip during the winter months, the breeze reaffirms its presence in summer, reminiscent of the lively winds in January. Interestingly, the transitional months of spring and autumn often showcase moderate breezes ideal for outdoor activities. As the year winds down, December’s steady gusts signal a delightful blend of warmth and energy, making it an inviting time for locals and visitors alike to enjoy the stunning landscapes of this picturesque region.
Weather in Cromwell varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cromwell, focusing on differences in temperature, rainfall, humidity, and UV levels.
December's weather features a milder temperature range with a minimum of 1°C (34°F) and a maximum of 24°C (76°F), averaging 12°C (55°F). It experiences more rainfall, totaling 114 mm (4.5 in) over 14 days, while maintaining a consistent humidity level of 86%. In contrast, January sees slightly warmer temperatures, with a minimum of 2°C (37°F) and a maximum of 28°C (83°F), averaging 14°C (57°F). Precipitation decreases to 86 mm (3.4 in) across 11 days, but humidity remains stable at 86%. Overall, January offers a warmer and drier climate compared to December. For further details, check out Cromwell weather in January.
When comparing the weather in December and February, both months show relatively mild temperatures, with February slightly warmer. December has a temperature range from a minimum of 1°C (34°F) to a maximum of 24°C (76°F), while February's temperatures range from 1°C (35°F) to 25°C (78°F). Precipitation is quite similar, with December receiving 114 mm (4.5 in) over 14 days and February having 105 mm (4.1 in) across 10 days. Humidity levels are also comparable, hovering around 86% in December and slightly lower at 85% in February. For more detailed insights, you can check out Cromwell weather in February.
In December, temperatures range from a chilly minimum of 1°C (34°F) to a warm maximum of 24°C (76°F), with an average of 12°C (55°F). The month experiences significant precipitation of 114 mm (4.5 in) over about 14 days, coupled with high humidity at 86%. In contrast, March sees slightly cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 23°C (74°F), maintaining a similar average of 12°C (54°F). Precipitation in March is lower at 78 mm (3.1 in) spread over 9 days, and humidity is slightly higher at 87%. For a more detailed look at March weather, you can visit Cromwell weather in March.
In December, the weather is generally warmer, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 24°C (76°F), resulting in an average of 12°C (55°F). This month sees considerable precipitation, totaling 114 mm (4.5 in) over approximately 14 days, paired with high humidity levels at 86%. In contrast, April experiences cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 21°C (69°F), averaging at 8°C (46°F). Precipitation decreases to 77 mm (3.0 in) across around 10 days, and humidity remains high at 88%. For more insights into the April weather, check out Cromwell weather in April.
In December, temperatures range from a mild 1°C (34°F) to a pleasant maximum of 24°C (76°F), with an average of 12°C (55°F). The weather is relatively humid at 86%, accompanied by 114 mm (4.5 in) of precipitation over 14 days. In contrast, May sees cooler temperatures, with a minimum of -10°C (14°F), an average of 5°C (40°F), and a maximum of 16°C (61°F). The precipitation decreases to 79 mm (3.1 in) across 11 days, and humidity remains high at 88%. For more detailed information on weather conditions during this month, visit Cromwell weather in May.
When comparing the weather in December and June, notable differences surface. December experiences much milder temperatures, with averages around 12°C (55°F) and maximums reaching up to 24°C (76°F). In contrast, June is chillier, with an average of just 1°C (35°F) and maximums peaking at 14°C (57°F). Precipitation is higher in December, with 114 mm (4.5 in) across 14 days, compared to June's 53 mm (2.1 in) over 10 days. Additionally, humidity remains relatively high in both months, with December at 86% and June slightly higher at 88%. For more details, you can check Cromwell weather in June.
When comparing December and July weather, notable contrasts emerge. December typically boasts warmer temperatures, with a minimum of 1°C (34°F) and an average of 12°C (55°F), peaking at 24°C (76°F). In contrast, July experiences much cooler conditions, featuring a minimum of -13°C (9°F) and an average of just 0°C (33°F), with a maximum of 9°C (48°F). Precipitation levels are relatively similar, with December receiving 114 mm (4.5 in) over 14 days and July accumulating 97 mm (3.8 in) over 13 days. Humidity remains high in both months, with December at 86% and July slightly higher at 88%. For more detailed information on the weather in July, you can check out Cromwell weather in July.
December's weather is generally milder, with temperatures ranging from a minimum of 1°C (34°F) to a pleasant average of 12°C (55°F) and a maximum of 24°C (76°F). This month experiences more precipitation, totaling 114 mm (4.5 in) over approximately 14 days, while the humidity lingers around a high 86%. In contrast, August brings a cooler climate, featuring temperatures that dip to a minimum of -13°C (9°F) and peak at a maximum of 13°C (56°F), with an average temperature of just 2°C (37°F). Precipitation in August is lower at 57 mm (2.3 in), distributed over 12 days, and the humidity is slightly higher at 87%. For a more detailed overview of August weather, you can visit Cromwell weather in August.
When comparing the weather in December and September, we see distinct differences in temperature and precipitation patterns. In December, temperatures range from a minimum of 1°C (34°F) to a maximum of 24°C (76°F), with an average of 12°C (55°F). In contrast, September experiences cooler temperatures, with a low of -8°C (17°F) and a high of 16°C (60°F), averaging around 4°C (40°F). Both months have similar humidity levels at 86%, but December tends to be slightly wetter, accumulating 114 mm (4.5 in) of precipitation over 14 days, compared to September's 101 mm (4.0 in) over 13 days. For more information on September weather, you can visit Cromwell weather in September.
When comparing the weather in December and October, it is evident that December is noticeably warmer, with average temperatures ranging from a minimum of 1°C (34°F) to a maximum of 24°C (76°F), while October records a chillier range from -8°C (19°F) to 21°C (71°F). Despite both months experiencing high humidity levels of 86%, December has more overall precipitation at 114 mm (4.5 in) over 14 days, compared to October’s 87 mm (3.4 in) across 13 days. For a more detailed look at the conditions in October, you can visit Cromwell weather in October.
When comparing the weather in December and November, both months experience relatively mild temperatures, but December offers a slight increase in average and maximum temperatures. In December, the minimum temperature is 1°C (34°F), with an average of 12°C (55°F) and a maximum of 24°C (76°F). In contrast, November starts colder, with a minimum of -3°C (26°F) and an average temperature of 10°C (51°F), although it can peak at 25°C (77°F). Precipitation levels are quite similar, with December receiving 114 mm (4.5 in) over 14 days and November slightly less at 112 mm (4.4 in) over 13 days. Humidity remains constant at 86% for both months. For more specific insights on November's weather, check out Cromwell weather in November.
As December arrives in Cromwell, the landscape transforms under a warm embrace, with temperatures soaring higher than in previous months, creating a lively and inviting atmosphere. This month stands out with its increased rainfall, shifting from the drier conditions of earlier seasons, leading to vibrant growth in the surrounding areas. The average humidity remains high, contributing to the lush, green scenery. Enjoying outdoor activities becomes a delightful possibility as the pleasant weather contrasts sharply with the chill of winter months. For more insights into the region's diverse weather patterns, explore Cromwell Climate.