Last updated: August 22, 2025
In Kiama Heights, Australia, the average temperature in September hovers around 14°C (57°F). Expect temperatures to range from a cool 5°C (41°F) to a warm 30°C (86°F). During this month, precipitation averages 47 mm (1.9 in) over 7 days, contributing to an average humidity of 64%.
In September in Kiama Heights, the average temperature is 14°C (57°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 5°C (41°F). This variation makes it a perfect time for travelers to enjoy a range of outdoor activities while packing for both warm and cool weather.
In Kiama Heights in September, the total precipitation amount is 47 mm (1.9 in) recorded over a span of 7 days.
In Kiama Heights in September, humidity is 64%. With an average temperature of 14°C (57°F), this humidity feels like a mild embrace, making it comfortable for traveling but with a slight stickiness in the air that encourages you to stay hydrated and seek shade during the warmest part of the day.
In Kiama Heights in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Kiama Heights.
UV Risk Categories
Weather in Kiama Heights varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kiama Heights, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 22°C (71°F) | 70 mm (2.8 inches) | 70% | extreme |
| February Weather | 21°C (70°F) | 143 mm (5.6 inches) | 74% | extreme |
| March Weather | 20°C (67°F) | 195 mm (7.7 inches) | 73% | extreme |
| April Weather | 17°C (63°F) | 46 mm (1.8 inches) | 73% | very high |
| May Weather | 14°C (57°F) | 72 mm (2.9 inches) | 72% | moderate |
| June Weather | 12°C (53°F) | 74 mm (2.9 inches) | 70% | moderate |
| July Weather | 11°C (53°F) | 52 mm (2.0 inches) | 69% | moderate |
| August Weather | 12°C (53°F) | 71 mm (2.8 inches) | 68% | moderate |
| September Weather | 14°C (57°F) | 47 mm (1.9 inches) | 64% | high |
| October Weather | 16°C (61°F) | 105 mm (4.1 inches) | 61% | very high |
| November Weather | 18°C (64°F) | 122 mm (4.8 inches) | 64% | extreme |
| December Weather | 20°C (68°F) | 100 mm (4.0 inches) | 71% | extreme |