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August Weather in Invercargill, New Zealand

Last updated: August 31, 2025

In August, the average temperature in Invercargill, New Zealand hovers around 8°C (47°F), with a range that can dip to a chilly -1°C (31°F) and reach a comfortable 17°C (63°F). Expect 97 mm (3.8 in) of precipitation spread over 18 days, contributing to an average humidity level of 84%. Be prepared for a mix of cool and damp days!

August Temperature in Invercargill

In August in Invercargill, the average temperature is 8°C (47°F). The maximum can reach up to 17°C (63°F), while the minimum can dip as low as -1°C (31°F). This variation in temperature makes it advisable for travelers to pack both light layers for the daytime and warmer clothing for the cooler evenings.

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

The chart illustrates August temperature patterns in Invercargill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Invercargill, August typically has an average temperature of 8°C (47°F), with highs reaching up to 17°C (63°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec595957545046454749525558
Data source: Temperature data for Invercargill 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 Invercargill

In Invercargill in August, the precipitation amount is 97 mm (3.8 in) spread over 18 days.

August Precipitation Trends in Invercargill

The chart displays monthly precipitation patterns in Invercargill, 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 Invercargill, August typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec10112285109103859497127117121106
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Invercargill

In Invercargill in August, humidity is 84%. With an average temperature of 8°C (47°F), this humidity feels like a damp blanket wrapping around you, making travel feel heavy and a bit lethargic, as the air thickens with moisture and each step becomes a little more cumbersome.

August Average Humidity in Invercargill

This chart illustrates the average monthly humidity levels in Invercargill, 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 Invercargill is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%84%84%85%85%85%84%83%82%83%83%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Invercargill

In Invercargill in August, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Invercargill, you can check the information here.

Maximum UV Index Levels in Invercargill for August

The chart shows the monthly maximum UV Index (UVI) for Invercargill 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 Invercargill typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121185322358912
Data source: Invercargill 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.

How August Weather in Invercargill Compares to Other Months

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

This table compares monthly weather conditions in Invercargill, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (60°F)101 mm (4.0 inches)83%extreme
February Weather15°C (59°F)122 mm (4.8 inches)82%extreme
March Weather14°C (58°F)85 mm (3.4 inches)84%very high
April Weather12°C (54°F)109 mm (4.3 inches)84%moderate
May Weather10°C (50°F)103 mm (4.0 inches)85%moderate
June Weather8°C (46°F)85 mm (3.3 inches)85%low
July Weather7°C (46°F)94 mm (3.7 inches)85%low
August Weather8°C (47°F)97 mm (3.8 inches)84%moderate
September Weather9°C (49°F)127 mm (5.0 inches)83%moderate
October Weather11°C (52°F)117 mm (4.6 inches)82%very high
November Weather13°C (55°F)121 mm (4.8 inches)82%very high
December Weather14°C (58°F)106 mm (4.2 inches)83%extreme

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