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August Weather in Portobello, New Zealand

Last updated: August 31, 2025

In August, the average temperature in Portobello, New Zealand hovers around 8°C (46°F). Expect chilly nights with minimums dipping to 0°C (32°F), while daytime can bring a mild maximum of 17°C (64°F). Be prepared for a bit of rain, with 41 mm (1.6 in) of precipitation spread over 12 days. With an average humidity of 84%, it's a good idea to dress in layers and carry an umbrella!

August Temperature in Portobello

In August in Portobello, the average temperature is 8°C (46°F). Maximum temperatures can reach 17°C (64°F), while minimums may drop as low as 0°C (32°F). This mild climate makes Portobello a pleasant destination for travelers seeking cooler weather experiences.

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

The chart illustrates August temperature patterns in Portobello, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portobello, August typically has an average temperature of 8°C (46°F), with highs reaching up to 17°C (64°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec595857534945444648515457
Data source: Temperature data for Portobello 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 Portobello

In Portobello in August, the precipitation amount is 41 mm (1.6 in) over the course of 12 days.

August Precipitation Trends in Portobello

The chart displays monthly precipitation patterns in Portobello, 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 Portobello, August typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec909148735043684156768488
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Portobello

In Portobello in August humidity is 84%. With an average temperature of 8°C (46°F), this humidity feels like a chilly mist wrapping around you, making outdoor exploration cumbersome and layering your clothing a necessity for comfort.

August Average Humidity in Portobello

This chart illustrates the average monthly humidity levels in Portobello, 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 Portobello is approximately 84%, 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 Portobello

In Portobello 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 Portobello, you can check the information here.

Maximum UV Index Levels in Portobello for August

The chart shows the monthly maximum UV Index (UVI) for Portobello 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 Portobello typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1311853223581012
Data source: Portobello 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 Portobello Compares to Other Months

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

This table compares monthly weather conditions in Portobello, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)90 mm (3.5 inches)79%extreme
February Weather15°C (59°F)91 mm (3.6 inches)76%extreme
March Weather14°C (57°F)48 mm (1.9 inches)78%very high
April Weather12°C (53°F)73 mm (2.9 inches)81%moderate
May Weather9°C (49°F)50 mm (2.0 inches)84%moderate
June Weather7°C (45°F)43 mm (1.7 inches)85%low
July Weather7°C (44°F)68 mm (2.7 inches)85%low
August Weather8°C (46°F)41 mm (1.6 inches)84%moderate
September Weather9°C (48°F)56 mm (2.2 inches)83%moderate
October Weather10°C (51°F)76 mm (3.0 inches)80%very high
November Weather12°C (55°F)84 mm (3.3 inches)78%very high
December Weather14°C (57°F)88 mm (3.5 inches)81%extreme

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