January Weather in Cromwell, New Zealand

Last updated: August 31, 2025

January in Cromwell, New Zealand, offers a delightful mix of warm temperatures and vibrant landscapes. With maximum temperatures reaching a pleasant 28°C (83°F), the region invites outdoor activities amid stunning scenery. The average temperature hovers around 14°C (57°F), providing a comfortable environment for both locals and visitors. Nighttime lows can dip to 2°C (37°F), reminding everyone of the crispness that characterizes this picturesque area. While January does see 86 mm (3.4 in) of rainfall over approximately 11 days, the high humidity level of 86% adds a lush quality to the surroundings. Overall, Cromwell's January weather is a captivating blend of warmth, moisture, and natural beauty.

January Temperature in Cromwell

In Cromwell, New Zealand, January serves as the warmest month, featuring a pleasant average temperature of 14°C (57°F) and highs reaching up to 28°C (83°F). The nights are cooler, with minimum temperatures dropping to 2°C (37°F). As the season transitions to February, a slight cooling is noted, with average temperatures dipping to 13°C (56°F), while February’s peak also falls to 25°C (78°F). This trend of gradually lowering temperatures continues into March, where the average further decreases to 12°C (54°F), inviting the arrival of autumn. The shift unmistakably marks a downward trajectory in both minimums and maximums as the year progresses, illustrating Cromwell's clear seasonal changes as it moves from the warmth of summer into the cooler embrace of winter.

January Weather in Cromwell: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Cromwell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cromwell, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec575653464034333640465054
Data source: Temperature data for Cromwell generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Cromwell

In January, Cromwell experiences an average precipitation of 86 mm (3.4 in) across 11 days, marking the month as one of the wetter periods in the summer season. This sets the stage for a gradual increase in rainfall as the year progresses, peaking in November with 112 mm (4.4 in) and 14 rainy days. Interestingly, while January's rainfall is significant, it is notably less than February's 105 mm (4.1 in), suggesting a trend of increasing precipitation as the region transitions towards the late summer and autumn months. The rainfall patterns indicate a shift towards wetter conditions later in the year, ultimately leading to a consistent distribution of moisture as reflected in the averages throughout the subsequent months.

January Precipitation Trends in Cromwell

The chart displays monthly precipitation patterns in Cromwell, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Cromwell, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec8710578777953975710187112114
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Cromwell

In Cromwell, New Zealand, January ushers in a nearly stifling humidity of 86%, setting the stage for a summer that is both warm and damp. As the months progress, humidity levels display a subtle but consistent trend; February dips slightly to 85%, but swiftly rebounds, peaking at 88% in the following months of April through July. This persistent humidity index remains stable, only teasing slight fluctuations, with August witnessing a modest decline to 87% before settling back to 86% through the last third of the year. Overall, Cromwell's humidity persists at high levels, creating a lush and vibrant environment, particularly compelling for visitors and locals alike.

January Average Humidity in Cromwell

This chart illustrates the average monthly humidity levels in Cromwell, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Cromwell is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%87%88%88%88%88%87%87%86%86%86%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Cromwell

In Cromwell, New Zealand, January is marked by an extreme UV Index of 13, indicating a mere 10 minutes of sun exposure can lead to skin burns. As summer progresses into February, the index remains high at 12, but starts to taper into March with a very high UV Index of 9. The trend shifts notably as autumn approaches in April, where the UV rating drops to 6, categorized as high, allowing for a safer 25 minutes in the sun. This downward trend continues into the winter months, with the UV Index falling to 2 during June and July, providing a much lower risk for sun damage. By mid-year, sun exposure becomes less hazardous, highlighted in August and September with moderate indices of 4 and 5 respectively. Moving into spring, the UV Index begins to climb again, reaching another very high reading of 10 in November, and closing the year with a return to extreme levels in December at 13. These fluctuations underscore the importance of seasonal awareness when it comes to sun safety. For detailed insights, check the monthly variations at Cromwell UV Index.

Maximum UV Index Levels in Cromwell for January

The chart shows the monthly maximum UV Index (UVI) for Cromwell in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Cromwell typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312963224591013
Data source: Cromwell January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Cromwell

In January, Cromwell basks in an impressive 262 hours of sunshine, setting the tone for a summer that gradually peaks in February with 284 hours of radiant warmth. As the seasons transition, the sun's presence remains steady through March at 263 hours, before a noticeable dip occurs in April, dropping to 218 hours. The cooler months of May to July see the sun retreating further, with hours falling as low as 155 in July. However, the return of longer days in August signals a change, as sunshine starts to rebound, culminating in a remarkable 324 hours by December. This pattern highlights a clear seasonal trend, with Cromwell experiencing a vibrant return of sunlight as the year concludes, offering a picturesque backdrop for those seeking warmth and adventure.

Monthly Sunshine Duration in Cromwell: January Highlighted

The January sunshine duration represents the total number of hours Cromwell experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec262h284h263h218h184h159h155h193h243h263h302h324h
Data source: Cromwell January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cromwell During January

In Cromwell, New Zealand, January enjoys a 35% chance of sunny weather, setting the stage for favorable summer days. This likelihood is on the rise as the season progresses, with February at 39% and March peaking at 41%, indicating a steady improvement in sunshine as summer unfolds. However, this trend soon gives way to a noticeable decline, with the probability of sunny days dropping to 32% in May and plummeting to a meager 10% by July. As winter approaches, sunshine becomes more elusive, though a slight resurgence occurs in September at 35%, hinting that the warm days of summer may be just around the corner again. Overall, if you're looking for sunshine, January is a promising month to soak up the sun before the clouds roll in with the cooler seasons.

Percentage of Sunny Days in January in Cromwell

The chart illustrates the percentage of sunny days in Cromwell throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Cromwell experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec35%39%41%40%32%16%10%24%35%32%31%27%
Data source: Cromwell January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cromwell in January

In Cromwell, New Zealand, January enjoys the longest daylight duration of the year, basking in approximately 15 hours of sunlight, which sets the stage for a vibrant and energetic summer. As the month transitions to February, daylight diminishes slightly to 13 hours, hinting at the approach of autumn. The trend continues with March offering 12 hours of daylight, marking a gradual reduction as days shorten. By April, daylight dips further to 10 hours, and May sees an even more pronounced decrease to 9 hours. The winter months of June and July see daylight plummet to 8 and 9 hours, respectively, as the days become shorter and the nights draw longer. However, the arrival of spring in August brings a resurgence in sunlight with 10 hours, followed by increasing daylight in September and October at 11 and 13 hours. Finally, November welcomes the return of 14 hours, leading back to the peak of daylight in December at 15 hours, creating a beautiful cyclical rhythm of light that defines the seasons in this picturesque region.

Average Daylight Hours in Cromwell for January

The chart illustrates the variation in daylight duration in Cromwell throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec15h 9m13h 54m12h 21m10h 47m9h 28m8h 48m9h 8m10h 17m11h 46m13h 21m14h 46m15h 31m
Data source: Cromwell daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Cromwell

In Cromwell, New Zealand, January welcomes visitors with an average wind speed of 2.2 m/s (5 mph), setting the stage for a refreshing summer breeze. This moderate wind strength is consistent with the seasonal trend, as it mirrors the wind speeds recorded in December and returns again in September, suggesting a cool, revitalizing shift as summer melds into autumn. As the months progress, however, a relative calm settles in, with February to May showcasing gentler breezes, averaging around 1.7 to 1.9 m/s (4 mph). By mid-year, the winds soften further, dipping to their annual low of 1.5 m/s (3 mph) in June. Yet, as winter recedes, Cromwell's winds begin to pick up steam once more, returning to familiar speeds by the end of the year, indicating the perennial dance of the seasons and the delightful variability of Cromwell's winds.

Average January Wind Speed in Cromwell

The chart displays monthly wind speed patterns in Cromwell, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.2 m/s1.81.92.11.71.51.71.92.21.91.92.2
Data source: Cromwell January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Cromwell Compares to Other Months

Weather in Cromwell varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Cromwell, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather between January and February, January experiences slightly warmer temperatures, with averages ranging from a minimum of 2°C (37°F) to a maximum of 28°C (83°F), while February sees a minimal drop with temperatures ranging from 1°C (35°F) to a maximum of 25°C (78°F). Precipitation levels are higher in February, totaling 105 mm (4.1 in) over 10 days, compared to January's 86 mm (3.4 in) spread across 11 days. Humidity remains fairly consistent, with January at 86% and February slightly lower at 85%. For a more detailed look at the weather in February, check out Cromwell weather in February.

In January, temperatures in Cromwell typically range from a minimum of 2°C (37°F) to a maximum of 28°C (83°F), with an average temperature of 14°C (57°F). The month experiences about 86 mm (3.4 in) of precipitation over 11 days and maintains a high humidity level of 86%.

In contrast, March brings cooler temperatures, with lows of -1°C (30°F) and highs reaching 23°C (74°F), averaging around 12°C (54°F). The precipitation is slightly less at 78 mm (3.1 in) over 9 days, with humidity marginally increasing to 87%. Overall, the weather reflects a gradual transition from the warmer summer months into the cooler autumn, making March a more temperate yet moist month. For more detailed information, you can check Cromwell weather in March.

In January, the weather is generally milder, with average temperatures ranging from a minimum of 2°C (37°F) to a maximum of 28°C (83°F) and an average of 14°C (57°F). The month experiences around 86 mm (3.4 in) of precipitation over 11 days, accompanied by relatively high humidity at 86%. In contrast, April features cooler temperatures, with a minimum of -4°C (25°F), an average of 8°C (46°F), and a maximum of 21°C (69°F). Although it sees slightly less precipitation at 77 mm (3.0 in) over 10 days, the humidity remains elevated at 88%. For more specific details about the weather in this month, check out Cromwell weather in April.

In January, the weather is generally warmer, with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 28°C (83°F), while May experiences cooler conditions, with minimum temperatures dipping to -10°C (14°F) and a maximum of only 16°C (61°F). Precipitation levels are relatively similar in both months, with January receiving 86 mm (3.4 in) and May slightly less at 79 mm (3.1 in), both seeing rain on around 11 days. Humidity remains high in both months, with January at 86% and May slightly higher at 88%. For more details on May weather conditions, you can check Cromwell weather in May.

In January, the weather in Cromwell is much warmer, with temperatures ranging from a minimum of 2°C (37°F) to a comfortable maximum of 28°C (83°F), accompanied by relatively high humidity at 86%. Precipitation during this month is significant, averaging 86 mm (3.4 in) over approximately 11 days. In contrast, June experiences much colder conditions, with temperatures dipping as low as -11°C (13°F) and only reaching a maximum of 14°C (57°F). The average temperature is a chilly 1°C (35°F), and while precipitation is lower at 53 mm (2.1 in) over about 10 days, the humidity remains quite high at 88%. For more details, you can check Cromwell weather in June.

January and July exhibit starkly contrasting weather patterns. In January, temperatures range from a pleasant minimum of 2°C (37°F) to a balmy maximum of 28°C (83°F), with an average of 14°C (57°F). This month experiences around 86 mm (3.4 in) of precipitation over 11 days and maintains a high humidity level of 86%. In contrast, July is significantly colder, with temperatures dipping to a minimum of -13°C (9°F) and only reaching a maximum of 9°C (48°F), while the average temperature rests at 0°C (33°F). During this month, precipitation increases slightly to 97 mm (3.8 in) over 13 days and humidity remains high at 88%. For a more detailed look at the conditions, check out Cromwell weather in July.

In January, the weather is significantly warmer, with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 28°C (83°F), and an average of 14°C (57°F). This month experiences 86 mm (3.4 in) of precipitation over 11 days, combined with high humidity levels at 86%. In contrast, August is much cooler, featuring a minimum temperature of -13°C (9°F) and a maximum of only 13°C (56°F), with an average temperature of just 2°C (37°F). Precipitation drops to 57 mm (2.3 in) over 12 days, while humidity remains slightly higher at 87%. For a detailed look at the climate, you can check Cromwell weather in August.

In January, temperatures in Cromwell are notably warmer, with minimums around 2°C (37°F) and maximums reaching up to 28°C (83°F), while September brings a significant drop, with minimums dipping to -8°C (17°F) and maximums capping at 16°C (60°F). January generally experiences less precipitation, with 86 mm (3.4 in) over 11 days, compared to September's 101 mm (4.0 in) over 13 days. Despite both months having a humidity level of 86%, the cooler temperatures in September create a much different atmosphere compared to the warm and often dry conditions of January. For more details on the weather during this autumn month, check Cromwell weather in September.

January and October present distinctly different weather patterns. In January, temperatures range from a minimum of 2°C (37°F) to a maximum of 28°C (83°F), with an average of 14°C (57°F). The month sees around 86 mm (3.4 in) of precipitation over approximately 11 days, coupled with high humidity levels of 86%. In contrast, October experiences cooler temperatures, with a minimum of -8°C (19°F) and an average of 8°C (46°F), reaching a maximum of 21°C (71°F). It also sees a slightly higher precipitation total of 87 mm (3.4 in) over 13 days, while maintaining the same humidity level of 86%. For a closer look at October weather specifics, check out this link: Cromwell weather in October.

In January, the weather is relatively warm, with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 28°C (83°F) and an average of 14°C (57°F). The month experiences about 86 mm (3.4 in) of precipitation across approximately 11 days, while humidity remains high at 86%. In contrast, November tends to be cooler, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 25°C (77°F) and an average of 10°C (51°F). This month receives more precipitation, totaling 112 mm (4.4 in) over 13 days, but interestingly maintains the same humidity level of 86%. For more details on November weather, you can check Cromwell weather in November.

In January, the weather typically features warmer temperatures with a minimum of 2°C (37°F) and a maximum reaching up to 28°C (83°F), compared to December, which has slightly cooler temperatures ranging from a minimum of 1°C (34°F) to a maximum of 24°C (76°F). January also experiences less precipitation, averaging 86 mm (3.4 in) over 11 days, while December sees 114 mm (4.5 in) over 14 days. Both months have high humidity levels of 86%, contributing to a muggy feel. For a more detailed look at December's weather, you can visit Cromwell weather in December.

Compare Cromwell's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Cromwell

January in Cromwell offers a vibrant contrast to the cooler months, with warmer temperatures creating a pleasant summer atmosphere. The days are typically dominated by bright sunshine, leading to an average warmth that allows for outdoor exploration and enjoyment. However, occasional rainfall—approximately 11 days of precipitation—adds a refreshing touch to the landscape, supporting the lush surroundings. With humidity levels hovering around 86%, the air feels warm and inviting, making it the perfect time to visit. For a detailed understanding of Cromwell's overall climate, check out Cromwell Climate.