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January Weather in Lewisham, Australia

Last updated: August 22, 2025

In January, the average temperature in Lewisham, Australia is a comfortable 18°C (64°F). However, be prepared for fluctuations, as temperatures can dip to a minimum of 5°C (42°F) and soar to a maximum of 37°C (99°F). During this month, you can expect 42 mm (1.7 in) of precipitation over approximately 5 days, with an average humidity level of 68%.

January Temperature in Lewisham

In January in Lewisham, the average temperature is 18°C (64°F). Maximums can reach 37°C (99°F) and minimums can be as low as 5°C (42°F). This variation means travelers should pack for warm days and cool evenings while exploring the area.

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

The chart illustrates January temperature patterns in Lewisham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lewisham, January typically has an average temperature of 18°C (64°F), with highs reaching up to 37°C (99°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec646160555047454650535760
Data source: Temperature data for Lewisham 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.

January Precipitation in Lewisham

In Lewisham in January, the precipitation amount is 42 mm (1.7 in) over a span of 5 days.

January Precipitation Trends in Lewisham

The chart displays monthly precipitation patterns in Lewisham, 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 Lewisham, January typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec424259374343325244795862
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Lewisham

In Lewisham in January, humidity is 68%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making for a slightly muggy experience that can leave you feeling sticky as you explore, so it’s best to stay hydrated and take frequent breaks in the shade.

January Average Humidity in Lewisham

This chart illustrates the average monthly humidity levels in Lewisham, 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 Lewisham is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%68%73%81%86%85%86%84%82%77%77%70%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Lewisham

In Lewisham in January, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Lewisham.

Maximum UV Index Levels in Lewisham for January

The chart shows the monthly maximum UV Index (UVI) for Lewisham 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 Lewisham typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1211963224681013
Data source: Lewisham 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 Lewisham Compares to Other Months

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

This table compares monthly weather conditions in Lewisham, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)42 mm (1.7 inches)68%extreme
February Weather16°C (61°F)42 mm (1.7 inches)68%extreme
March Weather16°C (60°F)59 mm (2.3 inches)73%very high
April Weather13°C (55°F)37 mm (1.5 inches)81%high
May Weather10°C (50°F)43 mm (1.7 inches)86%moderate
June Weather8°C (47°F)43 mm (1.7 inches)85%low
July Weather7°C (46°F)31 mm (1.2 inches)86%low
August Weather8°C (47°F)52 mm (2.1 inches)84%moderate
September Weather10°C (50°F)44 mm (1.7 inches)82%high
October Weather12°C (54°F)79 mm (3.1 inches)77%very high
November Weather14°C (58°F)58 mm (2.3 inches)77%very high
December Weather16°C (60°F)62 mm (2.5 inches)70%extreme

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