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September Weather in Wellington, South Africa

Last updated: August 31, 2025

In September, the average temperature in Wellington, South Africa is a pleasant 13°C (56°F). Temperatures can range from a chilly 0°C (31°F) to a warm 33°C (92°F), offering a varied climate. Expect 60 mm (2.4 in) of precipitation over approximately 8 days, with average humidity sitting at a comfortable 74%. Embrace the diversity of weather that this month brings!

September Temperature in Wellington

In September in Wellington, the average temperature is 13°C (56°F). Maximums can reach 33°C (92°F) and minimums can be as low as 0°C (31°F). This climate offers travelers a diverse experience, with warm days perfect for exploration and cooler evenings ideal for cozy gatherings.

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

The chart illustrates September temperature patterns in Wellington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wellington, September typically has an average temperature of 13°C (56°F), with highs reaching up to 33°C (92°F) and lows dropping to around 0°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec727369645854525155616468
Data source: Temperature data for Wellington 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 Wellington

In Wellington in September, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

September Precipitation Trends in Wellington

The chart displays monthly precipitation patterns in Wellington, 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 Wellington, September typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec21103036801481319560515130
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Wellington

In Wellington in September humidity is 74%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, especially for travelers unaccustomed to such conditions.

September Average Humidity in Wellington

This chart illustrates the average monthly humidity levels in Wellington, 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 Wellington is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec62%62%70%72%77%82%82%78%74%67%61%60%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Wellington

In Wellington in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Wellington.

Maximum UV Index Levels in Wellington for September

The chart shows the monthly maximum UV Index (UVI) for Wellington 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 Wellington typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311854469111214
Data source: Wellington 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 Wellington Compares to Other Months

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

This table compares monthly weather conditions in Wellington, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)21 mm (0.8 inches)62%extreme
February Weather23°C (73°F)10 mm (0.4 inches)62%extreme
March Weather21°C (69°F)29 mm (1.2 inches)70%extreme
April Weather18°C (64°F)36 mm (1.4 inches)72%very high
May Weather15°C (59°F)80 mm (3.2 inches)77%moderate
June Weather12°C (54°F)148 mm (5.8 inches)82%moderate
July Weather11°C (52°F)131 mm (5.1 inches)82%moderate
August Weather11°C (51°F)95 mm (3.7 inches)78%high
September Weather13°C (56°F)60 mm (2.4 inches)74%very high
October Weather16°C (61°F)51 mm (2.0 inches)67%extreme
November Weather18°C (64°F)51 mm (2.0 inches)61%extreme
December Weather20°C (68°F)30 mm (1.2 inches)60%extreme

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