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August Weather in Swansea, Australia

Last updated: August 22, 2025

In August, the average temperature in Swansea, Australia is a cool 8°C (46°F). Expect a minimum dip to -2°C (30°F) and a pleasant maximum of 17°C (63°F). During this month, 48 mm (1.9 in) of precipitation typically falls over 9 days, contributing to an average humidity level of 79%.

August Temperature in Swansea

In August in Swansea, the average temperature is 8°C (46°F), with maximums reaching 17°C (63°F) and minimums plummeting as low as -2°C (30°F). This diverse climate makes Swansea an ideal destination for travelers looking to experience a range of weather conditions and adapt their activities accordingly.

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

The chart illustrates August temperature patterns in Swansea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swansea, August typically has an average temperature of 8°C (46°F), with highs reaching up to 17°C (63°F) and lows dropping to around -2°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec636059545047454649535659
Data source: Temperature data for Swansea 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 Swansea

In Swansea in August, the total precipitation amount is 48 mm (1.9 in) spread over 9 days.

August Precipitation Trends in Swansea

The chart displays monthly precipitation patterns in Swansea, 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 Swansea, August typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec605966374554254844886772
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Swansea

In Swansea in August humidity is 79%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities a bit less enjoyable and leading travelers to seek cozy, warm spots to regain their comfort.

August Average Humidity in Swansea

This chart illustrates the average monthly humidity levels in Swansea, 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 Swansea is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%73%77%78%80%79%81%79%77%75%76%76%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Swansea

In Swansea in August, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Swansea for better planning.

Maximum UV Index Levels in Swansea for August

The chart shows the monthly maximum UV Index (UVI) for Swansea 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 Swansea typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec13111063224681013
Data source: Swansea 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 Swansea Compares to Other Months

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

This table compares monthly weather conditions in Swansea, showing how August’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)76%extreme
February Weather16°C (60°F)59 mm (2.3 inches)73%extreme
March Weather15°C (60°F)66 mm (2.6 inches)77%very high
April Weather12°C (55°F)37 mm (1.5 inches)78%high
May Weather10°C (51°F)45 mm (1.8 inches)80%moderate
June Weather8°C (47°F)54 mm (2.1 inches)79%low
July Weather7°C (46°F)25 mm (1.0 inches)80%low
August Weather8°C (46°F)48 mm (1.9 inches)79%moderate
September Weather9°C (49°F)44 mm (1.7 inches)77%high
October Weather11°C (53°F)88 mm (3.4 inches)75%very high
November Weather14°C (57°F)67 mm (2.7 inches)76%very high
December Weather15°C (60°F)72 mm (2.8 inches)76%extreme

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