January Weather in Jamestown, Australia

Last updated: August 22, 2025

In January, the average temperature in Jamestown, Australia is a pleasant 23°C (74°F). However, be prepared for a wide range, as temperatures can dip to a minimum of 10°C (50°F) and soar to a maximum of 44°C (111°F). During this month, expect 14 mm (0.5 in) of precipitation spread over about 3 days, with an average humidity of just 30%.

January Temperature in Jamestown

In January in Jamestown, the average temperature is 23°C (74°F). Maximums can reach 44°C (111°F), while minimums can be as low as 10°C (50°F). Be prepared for a wide range of temperatures during your travels, ensuring you pack both light clothing for the heat and warmer layers for the cooler nights.

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

The chart illustrates January temperature patterns in Jamestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jamestown, January typically has an average temperature of 23°C (74°F), with highs reaching up to 44°C (111°F) and lows dropping to around 10°C (50°F).

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

January Precipitation in Jamestown

In Jamestown in January, the precipitation amount is 14 mm (0.5 in) over the course of 3 days.

January Precipitation Trends in Jamestown

The chart displays monthly precipitation patterns in Jamestown, 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 Jamestown, January typically receives around 14 mm (0.5 inches) of precipitation spread over approximately 3 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 Jamestown

In Jamestown in January, humidity is 30%. With an average temperature of 23°C (74°F), this humidity feels like a comfortable embrace, perfect for exploring the sights and enjoying outdoor activities without feeling overheated.

January Average Humidity in Jamestown

This chart illustrates the average monthly humidity levels in Jamestown, 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 Jamestown is approximately 30%, 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 Jamestown

In Jamestown in January, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Jamestown.

Maximum UV Index Levels in Jamestown for January

The chart shows the monthly maximum UV Index (UVI) for Jamestown 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 Jamestown typically reaches 15, which falls under the extreme exposure category.

Data source: Jamestown 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 Jamestown Compares to Other Months

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

This table compares monthly weather conditions in Jamestown, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	14 mm (0.5 inches)	30%	extreme
February Weather	22°C (71°F)	22 mm (0.9 inches)	35%	extreme
March Weather	20°C (69°F)	8 mm (0.3 inches)	50%	extreme
April Weather	17°C (62°F)	26 mm (1.0 inches)	60%	very high
May Weather	12°C (53°F)	31 mm (1.2 inches)	69%	high
June Weather	9°C (48°F)	34 mm (1.3 inches)	71%	moderate
July Weather	9°C (49°F)	34 mm (1.3 inches)	72%	moderate
August Weather	9°C (49°F)	51 mm (2.0 inches)	64%	high
September Weather	12°C (55°F)	29 mm (1.2 inches)	57%	very high
October Weather	16°C (60°F)	34 mm (1.3 inches)	40%	extreme
November Weather	18°C (65°F)	39 mm (1.5 inches)	40%	extreme
December Weather	21°C (71°F)	22 mm (0.9 inches)	37%	extreme