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September Weather in Renwick, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Renwick, New Zealand hovers around 9°C (48°F). You can expect chilly days, with nighttime lows dipping to a brisk -3°C (27°F) and highs reaching up to a pleasant 19°C (67°F). During this month, precipitation typically totals 109 mm (4.3 in) spread across 11 days, contributing to a high average humidity of 83%. Be prepared for a mix of cool weather and occasional showers!

September Temperature in Renwick

In September in Renwick, the average temperature is 9°C (48°F). Maximums can reach 19°C (67°F), while minimums can drop to as low as -3°C (27°F). It's advisable to pack layers and prepare for a mix of mild and chilly weather during your travels.

September Weather in Renwick: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Renwick, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Renwick, September typically has an average temperature of 9°C (48°F), with highs reaching up to 19°C (67°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec636258534944434548525660
Data source: Temperature data for Renwick 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.

September Precipitation in Renwick

In Renwick in September, the precipitation amount is 109 mm (4.3 in), occurring over a span of 11 days.

September Precipitation Trends in Renwick

The chart displays monthly precipitation patterns in Renwick, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Renwick, September typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6077861141057113297109100105138
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Renwick

In Renwick in September humidity is 83%. With an average temperature of 9°C (48°F), this humidity feels like an enveloping blanket, making outdoor activities quite uncomfortable and encouraging travelers to seek shelter or shade frequently.

September Average Humidity in Renwick

This chart illustrates the average monthly humidity levels in Renwick, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Renwick is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%79%80%84%86%86%83%83%82%82%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Renwick

In Renwick in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Renwick, you can refer to this Hourly UV Index in Renwick.

Maximum UV Index Levels in Renwick for September

The chart shows the monthly maximum UV Index (UVI) for Renwick in September, 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 September, the maximum UV index in Renwick typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1313974224691113
Data source: Renwick September 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 September Weather in Renwick Compares to Other Months

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

This table compares monthly weather conditions in Renwick, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)60 mm (2.4 inches)79%extreme
February Weather16°C (62°F)77 mm (3.0 inches)79%extreme
March Weather15°C (59°F)86 mm (3.4 inches)79%very high
April Weather12°C (53°F)114 mm (4.5 inches)80%high
May Weather9°C (49°F)105 mm (4.1 inches)84%moderate
June Weather7°C (45°F)70 mm (2.8 inches)86%low
July Weather6°C (43°F)132 mm (5.2 inches)86%low
August Weather7°C (45°F)97 mm (3.8 inches)83%moderate
September Weather9°C (48°F)109 mm (4.3 inches)83%high
October Weather11°C (52°F)100 mm (3.9 inches)82%very high
November Weather13°C (56°F)105 mm (4.1 inches)82%extreme
December Weather15°C (60°F)138 mm (5.4 inches)81%extreme

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