August Weather in Oamaru, New Zealand

Last updated: August 31, 2025

Oamaru in August offers a charming blend of crisp temperatures and refreshing rainfall, perfect for those who enjoy the cool embrace of winter. With a maximum temperature reaching 16°C (61°F) and an average hovering around 8°C (46°F), the days can feel brisk, while nights dip to a chilly 2°C (35°F). Visitors can expect 39 mm (1.5 in) of precipitation over 9 days, contributing to the region's lush scenery and vibrant greenery. The air is typically humid, with levels around 84%, enhancing the sense of a cozy, invigorating climate perfect for exploration and relaxation. Whether it’s a leisurely stroll through town or a visit to the stunning coast, August in Oamaru promises a unique experience steeped in nature's beauty.

August Temperature in Oamaru

In August, Oamaru experiences a gentle transition into spring, with temperatures gradually rising from the depths of winter. The month starts with a minimum of 2°C (36°F), climbing to an average of 8°C (46°F), and peaking at a comfortable 16°C (61°F). This pattern marks a slight improvement from July, where temperatures lingered in the 1°C to 15°C (34°F to 59°F) range. As the month progresses, you can feel the crispness in the air giving way to milder days, signaling a change in the season. Although still on the cooler side, August provides a glimpse of warmth, hinting that spring is just around the corner.

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

The chart illustrates August temperature patterns in Oamaru, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oamaru, 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).
JanFebMarAprMayJunJulAugSepOctNovDec605958545046444648515558
Data source: Temperature data for Oamaru 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.

August Precipitation in Oamaru

In August, Oamaru experiences a continuation of its cool, wintery weather, with precipitation amounts falling to 39 mm (1.5 in) across nine days of rain. This dip in rainfall follows the typically wetter months of June and July, which see higher averages of 39 mm and 69 mm, respectively. Interestingly, while August shares similar precipitation levels with May, both months exhibit fewer rainy days, suggesting that although the rain may be less frequent, it can still have a notable impact on the landscape. As the region transitions into spring, August's moderate precipitation highlights a gradual shift in weather patterns, paving the way for the more significant rainfall that often characterizes the upcoming months of October through December.

August Precipitation Trends in Oamaru

The chart displays monthly precipitation patterns in Oamaru, 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 Oamaru, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec791006686403969394780100101
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Oamaru

In Oamaru, New Zealand, August experiences a humidity level of 84%, which is slightly lower than the peak of 85% seen in June and July. As we transition from winter to spring, the humidity in August reflects a gradual decrease from the winter months while still maintaining a notably moist atmosphere. This aligns with a consistent pattern seen throughout the year, where humidity generally remains high, peaking in the cooler months of May through July and then tapering off toward the warmer months. Overall, the slight dip in August indicates a subtle shift towards drier conditions as the region gears up for the warmer spring season.

August Average Humidity in Oamaru

This chart illustrates the average monthly humidity levels in Oamaru, 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 Oamaru is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%76%78%81%84%85%85%84%83%80%78%81%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Oamaru

In Oamaru during the month of August, the UV Index registers at 3, placing it in the moderate exposure category with a burn time of approximately 30 minutes. This marks a slight uptick from the preceding months of June and July, which both recorded a UV Index of 2. As winter fades away, the increasing sunlight hints at the approaching warmer seasons. However, despite the moderate UV levels, caution is still advisable to prevent sun damage. As you plan your outdoor activities, remember to stay informed about UV conditions—check the details at Oamaru UV Index for the latest updates and recommendations to ensure a safe and enjoyable experience in the sun.

Maximum UV Index Levels in Oamaru for August

The chart shows the monthly maximum UV Index (UVI) for Oamaru 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 Oamaru typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312963223581012
Data source: Oamaru 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 Oamaru

In August, Oamaru, New Zealand, basks in a moderate yet inviting 213 hours of sunshine, marking a subtle transition from the winter months. As the chill of July gives way, the days begin to lengthen, signaling the approach of spring. This slight uptick in daylight follows a series of cooler months, including June's low of 159 hours, and foreshadows the brightening trend that will crescendo into November, which boasts an impressive 319 hours of sunshine. As August unfolds, Oamaru experiences not just a warming atmosphere but also a growing vibrancy, hinting at the spectacular outdoor experiences awaiting in the sunnier months ahead.

Monthly Sunshine Duration in Oamaru: August Highlighted

The August sunshine duration represents the total number of hours Oamaru 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.
JanFebMarAprMayJunJulAugSepOctNovDec280h299h271h230h201h159h178h213h252h282h319h345h
Data source: Oamaru August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Oamaru During August

In Oamaru, New Zealand, the likelihood of sunny weather sees a gradual increase as winter transitions into spring. August boasts a 46% chance of sunny days, marking a slight upturn from the chillier months of June and July, which hover around 36% and 43% respectively. This upward trend continues into September with a promising 52%, suggesting that August serves as a key transition month towards sunnier times. In contrast, this period also stands out as a more favorable option compared to the late-year months of October (28%), November (28%), and December (26%), when the sun seems to shy away more frequently. Thus, while August may not guarantee endless sunshine, it certainly offers a brighter outlook as the region prepares for the warmer months ahead.

Percentage of Sunny Days in August in Oamaru

The chart illustrates the percentage of sunny days in Oamaru 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 Oamaru experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec33%33%39%51%49%36%43%46%52%28%28%26%
Data source: Oamaru August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Oamaru in August

In Oamaru, New Zealand, August marks a pivotal shift in daylight duration as the days gradually begin to lengthen again after the winter months. With around 10 hours of daylight, August serves as a bridge from the shorter, darker days of winter back towards the prolonged sunlight of spring and summer. Following a low of 8 hours in June, daylight hours saw a slight increase in July, and August continues this upward trend. This gradual return to longer days heralds the coming warmth, hinting at the joyful resurgence of natural light that will fully bloom in the months ahead. As we move toward September, daylight reaches 11 hours, showcasing the unmistakable rhythm of the seasons that Oamaru experiences each year.

Average Daylight Hours in Oamaru for August

The chart illustrates the variation in daylight duration in Oamaru 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 27m8h 47m9h 7m10h 16m11h 46m13h 21m14h 46m15h 32m
Data source: Oamaru daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Oamaru

In August, Oamaru experiences a refreshing breeze with an average wind speed of 4.1 m/s (9 mph), which matches the wind conditions of the preceding month. As the winter chill starts to ease, the winds pick up slightly, providing a delightful contrast to the more subdued July winds at 3.5 m/s (8 mph). This trend of gradual wind speed increase continues into September, sustaining a steady 4.1 m/s (9 mph). Observing the months leading up to August, it's evident that while the winter months like June and July kept speeds lower at 3.2 m/s (7 mph), the average winds of August signify a gentle transition into the vibrant spring season, ensuring that Oamaru’s coastal charm remains ever-enlivened by the wind.

Average August Wind Speed in Oamaru

The chart displays monthly wind speed patterns in Oamaru, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.53.83.63.63.93.23.54.1 m/s4.14.33.84.3
Data source: Oamaru August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Oamaru Compares to Other Months

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

In August, temperatures in Oamaru are generally cooler, with minimums of around 2°C (35°F) and average highs reaching up to 16°C (61°F). The month sees about 39 mm (1.5 in) of precipitation over approximately 9 days, accompanied by high humidity levels of 84%. In contrast, January typically presents a much warmer climate, featuring minimum temperatures around 8°C (47°F) and average maximums soaring to 28°C (83°F). January also experiences more rainfall, totaling 79 mm (3.1 in) over about 12 days, though humidity is slightly lower at 79%. For more detailed information, you can refer to Oamaru weather in January.

When comparing the weather in August and February, there are notable differences in temperature and precipitation. August experiences much cooler temperatures, with a minimum of 2°C (35°F) and an average of 8°C (46°F), while February boasts warmer conditions, ranging from a minimum of 8°C (47°F) to an average of 15°C (60°F). In terms of maximum temperatures, February reaches up to 28°C (82°F), significantly higher than August's maximum of 16°C (61°F). Precipitation is also more pronounced in February, with 100 mm (3.9 in) over 11 days, compared to August's 39 mm (1.5 in) over 9 days. Additionally, February's humidity stands at a lower 76% compared to August's higher level of 84%. For more details, you can visit Oamaru weather in February.

In comparing the weather of August and March, we observe notable differences in temperature and precipitation. August experiences cooler temperatures, with a minimum of 2°C (35°F) and an average of 8°C (46°F), while March is significantly warmer, boasting a minimum of 7°C (46°F) and an average of 14°C (58°F), peaking at 24°C (75°F). Additionally, March receives more precipitation, totaling 66 mm (2.6 in) over 11 days, compared to August's 39 mm (1.5 in) across 9 days. Humidity levels are relatively high in both months, with August at 84% and March slightly lower at 78%. For a detailed look at March weather in Oamaru, you can visit Oamaru weather in March.

When comparing the weather in August and April, notable differences emerge. August generally experiences cooler temperatures, with a range from a minimum of 2°C (35°F) to a maximum of 16°C (61°F) and an average of 8°C (46°F). In contrast, April offers milder conditions, featuring a minimum of 5°C (41°F), an average of 12°C (54°F), and a maximum of up to 22°C (73°F). Precipitation is also more pronounced in April, with 86 mm (3.4 in) occurring over 12 days, compared to August's 39 mm (1.5 in) spread across 9 days. Despite the higher rainfall in April, humidity levels remain relatively similar, with August at 84% and April at 81%. For more detailed insights, you can check Oamaru weather in April.

When comparing the weather in August and May, we notice several similarities and a few notable differences. Both months experience a minimum temperature of around 2°C, but May tends to be slightly warmer on average, with an average temperature of 10°C compared to August's 8°C. The maximum temperatures also reflect this mild variation, with May reaching 17°C while August peaks at 16°C. Precipitation levels are quite comparable, with May receiving 40 mm over 8 days and August seeing 39 mm across 9 days. Interestingly, both months share the same humidity level of 84%, contributing to the overall dampness typical of this region. For more detailed information on May weather specifically, you can check Oamaru weather in May.

August and June weather in Oamaru exhibit striking similarities, with both months featuring a minimum temperature of around 2°C (35°F), an average of 8°C (46°F), and a maximum of 16°C (61°F). Precipitation levels are identical in both months, totaling 39 mm (1.5 in) over 9 days. However, humidity is slightly lower in August at 84%, compared to 85% in June. Thus, while both months offer a cool maritime climate, August feels just a touch drier than June. For further details, you can check Oamaru weather in June.

In comparing the weather between July and August, we can see a slight warming trend. August sees slightly higher temperatures with a minimum of 2°C and an average of 8°C, compared to July's minimum of 1°C and average of 7°C. Both months experience similar humidity levels, with August at 84% and July slightly higher at 85%. However, August has less precipitation, measuring 39 mm over 9 days, while July recorded 69 mm across 10 days. For a more detailed look at July's weather, you can check Oamaru weather in July.

August and September exhibit some notable variations in weather patterns. In August, temperatures range with a minimum of 2°C (35°F), an average of 8°C (46°F), and a maximum of 16°C (61°F). Precipitation totals 39 mm (1.5 in) over about 9 days, with humidity at a relatively high 84%. In contrast, September sees a slight increase in average temperature, rising to 9°C (49°F), with a maximum of 18°C (65°F) while maintaining the same minimum. However, rainfall increases to 46 mm (1.8 in) over the same number of rainy days, and humidity remains similar at 83%. For more detailed weather information, check Oamaru weather in September.

In August, the weather tends to be quite chilly, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 16°C (61°F), and an average of 8°C (46°F). The month sees about 39 mm (1.5 in) of precipitation over approximately 9 days, contributing to the high humidity level of 84%.

In contrast, October brings a slight warming trend, with temperatures starting at a minimum of 4°C (39°F) and reaching up to 20°C (68°F), averaging around 11°C (51°F). However, October is notably wetter, with total precipitation of 80 mm (3.2 in) spread across around 15 days, resulting in a slightly lower humidity of 80%.

For more detailed weather information, you can check Oamaru weather in October.

In August, the weather is cool with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 16°C (61°F), while November experiences milder conditions, with temperatures between 5°C (42°F) and 25°C (77°F). August sees about 39 mm (1.5 in) of precipitation over 9 days, compared to a wetter November, which has 100 mm (4.0 in) of rain spread across 12 days. Additionally, humidity levels in August are higher at 84%, while November's humidity is slightly lower at 78%. For more detailed information, check out Oamaru weather in November.

In comparing the weather between August and December, one can observe significant differences in temperature and precipitation patterns. August experiences cooler temperatures, with an average of 8°C (46°F) and a maximum of only 16°C (61°F), while December boasts milder weather, averaging 15°C (58°F) and reaching highs of 24°C (76°F). Additionally, December is wetter, accumulating 101 mm (4.0 in) of precipitation over 16 days compared to August's 39 mm (1.5 in) across 9 days. Despite its higher rainfall, December's humidity remains relatively comfortable at 81%, slightly less than August's 84%. For a more detailed look at December weather, visit Oamaru weather in December.

Compare Oamaru's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Oamaru

As winter begins to wane, August weather in Oamaru presents a charming transition from the chill of the earlier months. With temperatures gradually warming, it’s marked by a mild average of around 8°C, offering a welcome escape from the bitter cold, even as nighttime lows can still dip. The increased humidity—averaging 84%—coupled with about nine days of precipitation lends a fresh, vibrant quality to the landscape, setting the stage for the arrival of spring. While August may still experience its fair share of rain, the overall conditions are more temperate compared to the depths of winter, beckoning outdoor enthusiasts to immerse themselves in the beauty of Oamaru. To learn more about how the weather trends in August compare to other months, visit Oamaru Climate.