August Weather in New Plymouth, New Zealand

Last updated: August 31, 2025

In August, New Plymouth, New Zealand experiences a mild winter climate characterized by a maximum temperature of 15°C (59°F) and an average of 12°C (53°F). The chilly evenings can drop to a minimum of 6°C (43°F), making warm clothing essential. This month is also notable for its substantial rainfall, with 214 mm (8.4 in) accumulating over 19 days, contributing to an average humidity level of 81%. Residents and visitors should be prepared for a mix of rain and cool temperatures, which combine to create a uniquely refreshing winter atmosphere.

August Temperature in New Plymouth

In August, New Plymouth experiences its coolest temperatures of the year, with minimums dropping to around 6°C (43°F). The month presents a fresh, crisp atmosphere with an average temperature of 12°C (53°F), reaching up to 15°C (59°F) at its warmest. This marks a transition from the colder depths of winter towards the approaching spring, as temperatures gradually begin to creep upwards in the following months. The trend throughout August is characterized by its chilly mornings and mild afternoons, making it a perfect time for cozy indoor activities or brisk walks to enjoy the invigorating air. As the landscape prepares for the blossoming season ahead, August serves as a gentle reminder of nature's cycles in this beautiful corner of New Zealand.

August Weather in New Plymouth: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in New Plymouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Plymouth, 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).
JanFebMarAprMayJunJulAugSepOctNovDec646664615855535354565963
Data source: Temperature data for New Plymouth 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 New Plymouth

August in New Plymouth, New Zealand, brings a notable amount of rainfall, with 214 mm (8.4 in) recorded across 19 days. This positions August among the wetter months, just shy of the heavy downpours seen in July and April. The trend reveals a peak in precipitation during the winter months, illustrating a robust wet season as the region transitions from July's high of 224 mm. With an average of nearly two-thirds of August experiencing rainfall, residents can expect frequent showers, contributing to the lush greenery characteristic of the region. As winter gives way, the subsequent months gradually see a decline in precipitation, setting the stage for a drier spring.

August Precipitation Trends in New Plymouth

The chart displays monthly precipitation patterns in New Plymouth, 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 New Plymouth, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec9495160207195155224214174141139180
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in New Plymouth

In August, New Plymouth experiences a humidity level of 81%, maintaining a trend of elevated moisture that's typical for winter months. Following a gradual rise through the colder months, where humidity peaks at 84% in July, the August figures suggest a slight easing but still reflect a damp, chilly atmosphere. As winter transitions into spring, humidity gradually decreases, with September showing a minor drop to 80%. Overall, the extended period of relatively high humidity—from May through August—indicates a distinctive pattern, where the coastal city remains enveloped in moist air, affecting both the local weather and the overall atmosphere of this vibrant region.

August Average Humidity in New Plymouth

This chart illustrates the average monthly humidity levels in New Plymouth, 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 New Plymouth is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%77%75%76%81%83%84%81%80%82%82%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in New Plymouth

In August, New Plymouth experiences a moderate UV Index of 4, which indicates a reasonable level of sun exposure risk. This marks a shift from the lower moderate levels seen in the preceding months of June and July, where the UV Index remained at 3. As winter fades, the burn time slightly increases to 30 minutes, allowing for more outdoor enjoyment while still necessitating sun safety precautions. Compared to the intense summer months, such as January and February with their extreme indices of 14 and 13, August represents a welcome reprieve, though vigilance is still essential. Understanding these trends is key for both residents and visitors to enjoy the New Plymouth sun responsibly. For a detailed look at UV levels throughout the year, visit New Plymouth UV Index.

Maximum UV Index Levels in New Plymouth for August

The chart shows the monthly maximum UV Index (UVI) for New Plymouth 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 New Plymouth typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1413974334691113
Data source: New Plymouth 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 New Plymouth

August in New Plymouth, New Zealand, ushers in a revitalizing 234 hours of sunshine, a delightful contrast to the preceding winter months. As the days grow longer and warmer, sunshine hours gradually climb, hinting at the upcoming spring. Following a dip in June's 180 hours, July sees a modest recovery before August offers a significant boost. In this month, residents can bask in the gentle transition from the cooler winter days, with September promising even more sunlight at 251 hours. This steady increase not only enhances the natural beauty of New Plymouth but also sets the stage for a vibrant spring ahead, encouraging locals and visitors alike to embrace outdoor activities under clear, sunny skies.

Monthly Sunshine Duration in New Plymouth: August Highlighted

The August sunshine duration represents the total number of hours New Plymouth 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.
JanFebMarAprMayJunJulAugSepOctNovDec276h284h275h230h208h180h195h234h251h271h310h338h
Data source: New Plymouth August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in New Plymouth During August

In New Plymouth, the likelihood of sunny weather takes a noticeable dip during August, sitting at a modest 37%. This marks a continuation of the declining trend seen since the start of winter, with July experiencing a slightly higher 37% chance as well. As the region emerges from the chill of winter, the chance of sunny days begins to rise again in September, where it bounces back to 44%. Overall, while August can be quite gray, it sets the stage for the sunnier spells ahead, reminding us that warmer, brighter days are just around the corner.

Percentage of Sunny Days in August in New Plymouth

The chart illustrates the percentage of sunny days in New Plymouth 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 New Plymouth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%47%48%44%41%39%37%37%44%28%48%31%
Data source: New Plymouth August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in New Plymouth in August

In New Plymouth, August marks a subtle transition as daylight extends to 10 hours, a slight increase from the consistent 9 hours seen over the previous three months. This shift signals the gradual return of longer days, setting the stage for the approach of spring. Following the winter months, where daylight dips to its lowest, August brings a refreshing change, hinting at the early blooms and outdoor activities to come. As the days continue to lengthen through September and into October, the anticipation of warmer, sunlit days grows ever more palpable, reflecting nature's rhythmic dance of the seasons.

Average Daylight Hours in New Plymouth for August

The chart illustrates the variation in daylight duration in New Plymouth throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 32m13h 33m12h 18m11h 2m9h 58m9h 27m9h 42m10h 37m11h 49m13h 6m14h 14m14h 50m
Data source: New Plymouth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in New Plymouth

In August, the wind in New Plymouth maintains a brisk pace, averaging 6.5 m/s (14 mph), closely mirroring the strong gusts felt in July. This month transitions the city from the heart of winter toward spring, showcasing a trend of increasing wind speeds that begins around May and peaks in September with an average of 6.9 m/s (15 mph). Interestingly, August marks the tail end of this upward trajectory, suggesting that while winter's chill may linger, the promise of warmer days ahead starts to stir in the air. As autumn approaches, the wind tends to soften, foreshadowing a gentle return to milder conditions.

Average August Wind Speed in New Plymouth

The chart displays monthly wind speed patterns in New Plymouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.04.75.45.56.45.86.66.5 m/s6.95.45.25.6
Data source: New Plymouth August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in New Plymouth Compares to Other Months

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

In comparing the weather of August and January, we notice a significant difference in temperature and precipitation patterns. August typically experiences cooler conditions, with minimum temperatures around 6°C (43°F) and maximums reaching only 15°C (59°F). In contrast, January boasts milder temperatures, with lows of 12°C (53°F) and highs of up to 24°C (75°F). Additionally, August is considerably wetter, receiving 214 mm (8.4 in) of precipitation over 19 days, while January has a much drier climate with just 94 mm (3.7 in) falling across 9 days. Humidity levels are fairly similar, hovering around 81% in August and 79% in January. For more detailed information, you can explore New Plymouth weather in January.

August and February display contrasting weather patterns. In August, temperatures are notably cooler, with a minimum of 6°C and a maximum of 15°C, and the average temperature rests at 12°C. This month also experiences significant rainfall, with 214 mm falling over 19 days, resulting in a humidity level of 81%. In sharp contrast, February brings milder and warmer conditions, with temperatures ranging from a minimum of 13°C to a maximum of 24°C, averaging 19°C. Precipitation is much lower at 95 mm over just 10 days, accompanied by a slightly lower humidity of 77%. For more details on February weather, you can check New Plymouth weather in February.

When comparing the weather in August and March, significant differences emerge in temperature and precipitation patterns. August experiences cooler temperatures, with a minimum of 6°C (43°F) and an average of 12°C (53°F), while March boasts milder conditions with minimums around 13°C (55°F) and averages reaching 18°C (64°F). Additionally, March typically sees less precipitation, totaling 160 mm (6.3 in) over 12 days, compared to August's 214 mm (8.4 in) across 19 days. The humidity in August also tends to be higher at 81%, compared to March’s 75%. For a more detailed look at March weather, you can visit New Plymouth weather in March.

When comparing the weather in August and April, notable differences emerge. August tends to be cooler, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 15°C (59°F), while April enjoys milder conditions, showcasing temperatures from a minimum of 9°C (49°F) to a maximum of 21°C (70°F). Precipitation levels are fairly similar, with August receiving 214 mm (8.4 in) over 19 days, and April slightly lower at 207 mm (8.1 in) across 14 days. Additionally, humidity is higher in August at 81%, compared to 76% in April. For a closer look at April's climate, check out New Plymouth weather in April.

When comparing the weather in August and May, a few notable differences stand out. August experiences cooler temperatures, with a minimum of 6°C (43°F) and an average of 12°C (53°F), while May boasts slightly milder conditions, with a minimum of 9°C (48°F) and an average of 14°C (58°F). In terms of maximum temperatures, May reaches up to 19°C (66°F), significantly warmer than August's peak of 15°C (59°F). Both months see considerable precipitation, but August typically receives a bit more, with 214 mm (8.4 in) across 19 days, compared to May's 195 mm (7.7 in) over 14 days. Humidity levels remain consistent at 81% for both months. For more detailed insights into the weather during this time, you can visit New Plymouth weather in May.

In August, temperatures are slightly cooler than in June, with averages ranging from a minimum of 6°C (43°F) to a maximum of 15°C (59°F), compared to June's range of 8°C (46°F) to 17°C (63°F). Additionally, August experiences more precipitation, with 214 mm (8.4 in) over 19 days, while June sees 155 mm (6.1 in) over 14 days. Humidity levels are relatively similar, with August at 81% and June at 83%. For more detailed information, you can visit New Plymouth weather in June.

In comparing the weather between July and August, we find that both months feature relatively cool temperatures, with July experiencing slightly warmer conditions. July's minimum temperature is 7°C, while August's is slightly lower at 6°C, though both months maintain an average of around 12°C. Precipitation is notably high in both, but July sees a bit more rain, with 224 mm compared to August's 214 mm, falling over 18 and 19 days respectively. Humidity levels are also comparable, with July at 84% and August slightly lower at 81%. For more insights into July's weather patterns, you can refer to New Plymouth weather in July.

August and September exhibit similar average temperatures, with August showing a minimum of 6°C (43°F) and a maximum of 15°C (59°F), while September's temperatures range from a minimum of 7°C (45°F) to a maximum of 16°C (62°F). Both months experience relatively high humidity, hovering around 81% in August and slightly lower at 80% in September. However, precipitation is more pronounced in August, with 214 mm (8.4 in) falling over 19 days, compared to 173 mm (6.8 in) over 17 days in September. For more information, check out New Plymouth weather in September.

In comparing the weather between August and October, we see a noticeable shift. August experiences lower temperatures, with a minimum of 6°C (43°F) and an average of 12°C (53°F), while October brings slightly warmer conditions, with minimums of 8°C (46°F) and an average of 13°C (56°F). Precipitation levels are also different; August has 214 mm (8.4 in) of rainfall over 19 days, compared to October's 141 mm (5.6 in) over 16 days, indicating a drier October. Additionally, humidity remains fairly stable, with August at 81% and October at 82%. For more detailed information, you can check New Plymouth weather in October.

In August, the weather is cooler with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 15°C (59°F), accompanied by significant rainfall of 214 mm (8.4 in) over 19 days and high humidity at 81%. Conversely, November brings milder temperatures, with minimums of 10°C (51°F) and maximums reaching up to 20°C (68°F). The precipitation decreases to 139 mm (5.5 in) over just 13 days, while humidity rises slightly to 82%. For a more detailed look at November weather, you can visit New Plymouth weather in November.

August and December present notably different weather patterns. August experiences cooler temperatures, with an average of 12°C (53°F) and maximums only reaching 15°C (59°F), whereas December enjoys milder conditions, featuring an average temperature of 17°C (63°F) and maximums climbing to 22°C (72°F). Although August is characterized by higher precipitation, with 214 mm (8.4 in) over 19 days, December sees a slight reduction in rainfall to 180 mm (7.1 in) across 14 days. Humidity levels remain fairly consistent, hovering around 81% in August and 80% in December. For more detailed insights, visit New Plymouth weather in December.

Compare New Plymouth's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in New Plymouth

As August settles in New Plymouth, the weather takes on a distinctly cool and damp character compared to other months. With average temperatures hovering around a crisp 12°C and significant rainfall bringing around 214 mm over 19 days, this month stands out for its heightened humidity and frequent showers. While the chill in the air may prompt a cozy retreat indoors, August offers a unique charm that prepares the region for the warmer spring months ahead. To learn more about how this month fits into the larger weather patterns, check out New Plymouth Climate.