August Weather in Cromwell, New Zealand

Last updated: August 31, 2025

In August, Cromwell, New Zealand, experiences a chilly climate, with temperatures ranging from a maximum of 13°C (56°F) to a minimum of -13°C (9°F). The average temperature hovers around a brisk 2°C (37°F), providing a stark reminder that winter is still in full swing. Residents and visitors can expect moderate precipitation, with around 57 mm (2.3 in) spread across 12 days, leading to a 92% humidity level that accentuates the cold. The month is characterized by crisp air and a picturesque winter landscape, making it a unique time to experience Cromwell’s natural beauty.

August Temperature in Cromwell

In Cromwell, New Zealand, August brings a chill as winter begins to wane, with temperatures dipping to a minimum of -13°C (9°F). During this month, the average temperature hovers around 2°C (37°F), leading to brief interludes of warmth with daytime highs reaching a moderate 13°C (56°F). This gradual rise in temperatures signals the slow transition toward spring, marking a stark contrast to the biting cold of July. As summer’s warmth fades into memory, August’s cool air provides a crisp vitality, making it a time for layering up while still enjoying the stunning landscapes that Cromwell is known for.

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

The chart illustrates August 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, August 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.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Cromwell

In August, Cromwell experiences a noticeable dip in precipitation, recording 57 mm (2.3 in) of rain over 12 days. This marks a decline from the wetter months of July, which saw 97 mm (3.8 in), and sets the stage for an increase in rainfall as spring approaches. August's precipitation trends suggest a transitional phase where the winter's grip loosens, paving the way for the wetter months ahead, notably September with its 101 mm (4.0 in). This pattern indicates a consistent seasonal cycle, where Cromwell's climate shifts dramatically from the drier mid-year months toward the thoroughly wet late spring and early summer, emphasizing the region's dynamic weather contrasts.

August Precipitation Trends in Cromwell

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

In Cromwell, New Zealand, the humidity levels in August hover around a moderate 87%, showcasing a slight decline from the peak experienced in the cooler months. This trend, reflected in the consistent humidity of 88% from April to July, indicates that Cromwell’s climate remains relatively stable throughout the year. Even as the seasons transition, humidity levels remain high, fluctuating only slightly between 85% and 88% across the months. The data suggests a comforting consistency in the air’s moisture content, making Cromwell a lush environment, particularly as it approaches the spring.

August Average Humidity in Cromwell

This chart illustrates the average monthly humidity levels in Cromwell, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Cromwell

In August, Cromwell, New Zealand experiences a moderate UV Index of 4, translating to a burn time of approximately 30 minutes for the average person. This marks a gradual increase from the low readings seen in the preceding months of June and July. The transition to late winter signals a shift as days grow longer and the sun’s strength begins to rise, indicating that sun safety is still important, albeit not at the extremes felt during summer months. As the year progresses, UV levels will continue to fluctuate, peaking later in the year. For more details on solar exposure, visit Cromwell UV Index.

Maximum UV Index Levels in Cromwell for August

The chart shows the monthly maximum UV Index (UVI) for Cromwell in August, 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 August, the maximum UV index in Cromwell typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312963224591013
Data source: Cromwell August 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.

August Sunshine in Cromwell

In Cromwell, New Zealand, August marks a transition as summer slowly gives way to the crispness of autumn. With 193 hours of sunshine, the month presents a comforting warmth compared to the chill of the preceding winter months—July saw only 155 hours. This slight uptick in sunshine heralds a return to brighter days, encouraging the vibrant landscapes to flourish. Interestingly, August lies at a midpoint between the more sun-drenched heights of November and December, which boast over 300 hours, and the quieter winter months. As the days gradually lengthen, the promise of spring begins to shimmer on the horizon, making Cromwell an inviting destination for those seeking a blend of early warmth and stunning scenery.

Monthly Sunshine Duration in Cromwell: August Highlighted

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

Chance of Sun in Cromwell During August

In Cromwell, New Zealand, the likelihood of sunny weather takes a noticeable dip in August, with only a 24% chance of sunshine. This marks a low point in the year, especially following the already dim months of June and July, which sink to a mere 16% and 10% respectively. As winter gives way to spring, the probability of clear skies begins to rise again in September, gradually climbing back towards the more favorable odds seen in the warmer months of January through April, where chances hover between 35% and 41%. Therefore, while August may present an uphill battle for sunseekers, a brighter outlook lies just around the corner in September.

Percentage of Sunny Days in August in Cromwell

The chart illustrates the percentage of sunny days in Cromwell throughout the year, with August 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 August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cromwell in August

In Cromwell, New Zealand, August marks a transitional period in daylight duration, featuring about 10 hours of daylight. This increase is a welcome shift from the darker winter months, as days start to lengthen again following July's 9 hours. Leading into spring, the gradual rise in daylight signifies nature's awakening, paving the way for the more extended hours of September's 11 hours and beyond. This upward trend not only enriches the landscape and brings warmth but also revitalizes outdoor activities, making August a compelling bridge between winter's retreat and spring's arrival.

Average Daylight Hours in Cromwell for August

The chart illustrates the variation in daylight duration in Cromwell throughout the year, with August 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.

August Winds in Cromwell

In Cromwell, New Zealand, the August wind remains gentle yet noticeable, with an average speed of 1.9 m/s (4 mph). This month continues the trend of mild breezes observed during the winter months, maintaining a relatively consistent wind pattern alongside its predecessor, July. Following the calmness of mid-winter, August's winds set the stage for a gradual shift toward the breezier months of September and December, where speeds rise to 2.2 m/s (5 mph). Overall, this subtle shift marks the transition from winter tranquility to a slightly more invigorated spring atmosphere, inviting both locals and visitors to enjoy the refreshing outdoor experience that Cromwell has to offer.

Average August Wind Speed in Cromwell

The chart displays monthly wind speed patterns in Cromwell, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.21.81.92.11.71.51.71.9 m/s2.21.91.92.2
Data source: Cromwell August wind data, generated using information from the Copernicus Climate Change Service.

How August 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 August’s weather to other months in Cromwell, focusing on differences in temperature, rainfall, humidity, and UV levels.

In August, the weather is notably colder, with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 13°C (56°F) and an average of 2°C (37°F). The month's precipitation totals 57 mm (2.3 in) over about 12 days, accompanied by high humidity at 87%. In contrast, January brings significantly warmer conditions, with temperatures ranging from a minimum of 2°C (37°F) to a balmy maximum of 28°C (83°F) and an average of 14°C (57°F). Precipitation is slightly higher at 86 mm (3.4 in) across 11 days, while humidity remains similar to August, at 86%. For more details on weather conditions during this month, check out Cromwell weather in January.

When comparing the weather in August and February, notable differences emerge in temperature and precipitation. August experiences colder conditions, with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 13°C (56°F) and an average of 2°C (37°F). In contrast, February sees much warmer temperatures, with a minimum of 1°C (35°F) and a maximum of 25°C (78°F), resulting in a considerably higher average of 13°C (56°F). Additionally, February tends to have more rainfall, with 105 mm (4.1 in) over about 10 days, compared to 57 mm (2.3 in) over 12 days in August. Both months maintain similar humidity levels, around 85-87%. For more detailed insights, you can check Cromwell weather in February.

In comparing the weather between August and March, we can observe a notable shift in temperatures and precipitation patterns. August, with an average temperature of 2°C (37°F), features colder minimums reaching as low as -13°C (9°F) and maximums peaking at 13°C (56°F). In contrast, March offers a more temperate climate, with average highs of 12°C (54°F) and maximum temperatures soaring up to 23°C (74°F).

While August experiences 57 mm (2.3 in) of precipitation over 12 days, March sees slightly higher precipitation at 78 mm (3.1 in) across 9 days, demonstrating a more concentrated rainfall pattern. Interestingly, both months share the same humidity level of 87%, indicating a consistently moist atmosphere. For more detailed information, you can refer to Cromwell weather in March.

In comparing the weather of August and April, we observe notable differences in temperature and precipitation. August typically has colder temperatures, with an average of 2°C (37°F), while April enjoys milder conditions with an average of 8°C (46°F) and a maximum temperature reaching 21°C (69°F). Precipitation levels are also different; August experiences 57 mm (2.3 in) over 12 days, whereas April sees a higher total of 77 mm (3.0 in) across 10 rainy days. Humidity remains similar in both months, hovering around 87% in August and 88% in April. For a more detailed look at April weather, you can visit Cromwell weather in April.

When comparing the weather in August and May, we see notable differences in both temperature and precipitation patterns. August records a minimum temperature of -13°C (9°F), with an average of 2°C (37°F) and a maximum of 13°C (56°F), while May is slightly milder, featuring a minimum of -10°C (14°F), an average of 5°C (40°F), and a maximum of 16°C (61°F). Although August experiences a lower average temperature, it also has 57 mm (2.3 in) of precipitation over 12 days, compared to May’s 79 mm (3.1 in) over 11 days. Additionally, the humidity levels in both months are quite high, with August at 87% and May at 88%. For a more detailed look at May weather, you can visit Cromwell weather in May.

In comparing the weather of August and June, both months exhibit similar temperature ranges and precipitation patterns, but with subtle differences. August tends to be slightly cooler, with an average temperature of 2°C (37°F) compared to June's average of 1°C (35°F). Although both months experience comparable maximum temperatures, August sees a notable increase in precipitation, with 57 mm (2.3 in) over 12 days, compared to June's 53 mm (2.1 in) across 10 days. Humidity levels remain high in both months, with August at 87% and June at 88%. For a more detailed look at June weather specifics, you can visit Cromwell weather in June.

In comparing the weather between July and August, we observe that both months experience a similar range of low temperatures, with the minimum temperature in both months hitting -13°C (9°F). However, August averages slightly warmer at 2°C (37°F) compared to July's average of 0°C (33°F). While July received more precipitation at 97 mm (3.8 in) over 13 days, August saw 57 mm (2.3 in) over 12 days, indicating a drier trend as the month progressed. Humidity remains similar between the two months, with July at 88% and August at 87%. For those interested in July's specific weather patterns, more details can be found here: Cromwell weather in July.

In August, temperatures range from a minimum of -13°C (9°F) to a maximum of 13°C (56°F), with an average of 2°C (37°F). The month experiences moderate precipitation, totaling 57 mm (2.3 in) over 12 days, and maintains a high humidity level of 87%. As we transition into September, the weather becomes slightly milder, with temperatures ranging from -8°C (17°F) to 16°C (60°F) and averaging 4°C (40°F). However, September sees an increase in precipitation, reaching 101 mm (4.0 in) over 13 days, while humidity remains relatively constant at 86%. For a more detailed look at the weather in September, visit Cromwell weather in September.

In comparing the weather between August and October, August tends to be colder overall, with average temperatures hovering around 2°C (37°F), while October sees a notable increase, with average temperatures averaging 8°C (46°F). The maximum temperature in October can reach up to 21°C (71°F), significantly warmer than August's peak of 13°C (56°F). Additionally, both months experience relatively high humidity, but August has a slight edge at 87%, compared to October’s 86%. Precipitation also increases in October, with 87 mm (3.4 in) falling over 13 days, compared to August's 57 mm (2.3 in) over 12 days. For more detailed information, you can check Cromwell weather in October.

In August, temperatures tend to be quite cold, with daily averages hovering around 2°C (37°F), reaching a maximum of only 13°C (56°F) during the warmest days. The month experiences significant precipitation totaling 57 mm (2.3 in) over approximately 12 days, coupled with high humidity levels at 87%. In contrast, November brings milder temperatures, with an average of 10°C (51°F) and highs that can soar up to 25°C (77°F). This month also has more rainfall, with 112 mm (4.4 in) spread over 13 days, while humidity remains relatively stable at 86%. For those interested in specific weather patterns, you can find more detailed information here: Cromwell weather in November.

When comparing the weather in August to that in December, it is evident that December is significantly milder and wetter. In August, temperatures range from a chilly minimum of -13°C (9°F) to a maximum of 13°C (56°F), with an average of just 2°C (37°F). The month experiences about 57 mm (2.3 in) of precipitation over 12 days. In contrast, December boasts much warmer temperatures, with a minimum of 1°C (34°F) and a maximum reaching 24°C (76°F), averaging 12°C (55°F). The precipitation also increases to 114 mm (4.5 in) across 14 days, while humidity remains relatively constant at 86% to 87%. For more details, you can check out Cromwell weather in December.

Compare Cromwell's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Cromwell

In August, Cromwell experiences a pronounced shift in weather, signifying the tail end of winter. The chill in the air is unmistakable, with temperatures averaging around 2°C, making it noticeably colder compared to the milder months that precede it. With an average humidity of 87% and about 57 mm of precipitation over 12 days, rain and occasional wintery showers are common, adding to the crisp atmosphere. While not as harsh as the depths of winter, August still invites layers and warm drinks as residents and visitors prepare for the gradual transition to spring. For a deeper understanding of how August's weather compares with other months, check out Cromwell Climate.