January Weather in Swansea, Australia

Last updated: August 22, 2025

In January, the average temperature in Swansea, Australia hovers around 17°C (63°F), with extremes ranging from a chilly 5°C (41°F) to a warm 34°C (93°F). Visitors can expect 60 mm (2.4 in) of precipitation spread over approximately 6 days, contributing to an average humidity of 76%. Prepare accordingly for a mix of warm days and refreshing showers!

January Temperature in Swansea

In January in Swansea, the average temperature is 17°C (63°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop to as low as 5°C (41°F). It's a good time to pack layers and enjoy a mix of warm and cool weather for your travels.

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

The chart illustrates January 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, January typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (41°F).

Data source: Temperature data for Swansea generated using information from the Copernicus Climate Change Service.

January Precipitation in Swansea

In Swansea in January, the total precipitation amount is 60 mm (2.4 in) spread over 6 days.

January Precipitation Trends in Swansea

The chart displays monthly precipitation patterns in Swansea, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Swansea, January typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Swansea

In Swansea in January humidity is 76%. With an average temperature of 17°C (63°F), this humidity feels like traveling through a warm, enveloping blanket, making every outdoor adventure feel sticky and heavy, yet pleasantly refreshing when you find a cool breeze.

January Average Humidity in Swansea

This chart illustrates the average monthly humidity levels in Swansea, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Swansea is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Swansea

In Swansea in January, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Swansea.

Maximum UV Index Levels in Swansea for January

The chart shows the monthly maximum UV Index (UVI) for Swansea in January, 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 January, the maximum UV index in Swansea typically reaches 13, which falls under the extreme exposure category.

Data source: Swansea January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (63°F)	60 mm (2.4 inches)	76%	extreme
February Weather	16°C (60°F)	59 mm (2.3 inches)	73%	extreme
March Weather	15°C (60°F)	66 mm (2.6 inches)	77%	very high
April Weather	12°C (55°F)	37 mm (1.5 inches)	78%	high
May Weather	10°C (51°F)	45 mm (1.8 inches)	80%	moderate
June Weather	8°C (47°F)	54 mm (2.1 inches)	79%	low
July Weather	7°C (46°F)	25 mm (1.0 inches)	80%	low
August Weather	8°C (46°F)	48 mm (1.9 inches)	79%	moderate
September Weather	9°C (49°F)	44 mm (1.7 inches)	77%	high
October Weather	11°C (53°F)	88 mm (3.4 inches)	75%	very high
November Weather	14°C (57°F)	67 mm (2.7 inches)	76%	very high
December Weather	15°C (60°F)	72 mm (2.8 inches)	76%	extreme