August Weather in Koumac, New Caledonia

Last updated: August 31, 2025

In August, the average temperature in Koumac, New Caledonia hovers around 21°C (71°F). Expect pleasant days, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 28°C (82°F). Prepare for light showers, as the area experiences approximately 53 mm (2.1 in) of precipitation over 5 days, all while maintaining an average humidity of 74%.

August Temperature in Koumac

In August in Koumac, the average temperature is 21°C (71°F). The maximum can reach 28°C (82°F), while the minimum can drop to as low as 16°C (62°F). This mild and pleasant climate makes Koumac an ideal destination for travelers looking to enjoy outdoor activities and sightseeing.

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

The chart illustrates August temperature patterns in Koumac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koumac, August typically has an average temperature of 21°C (71°F), with highs reaching up to 28°C (82°F) and lows dropping to around 16°C (62°F).

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

August Precipitation in Koumac

In Koumac in August, the precipitation amount is 53 mm (2.1 in) during a span of 5 days.

August Precipitation Trends in Koumac

The chart displays monthly precipitation patterns in Koumac, 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 Koumac, August typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 5 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Koumac

In Koumac in August, humidity is 74%. With an average temperature of 21°C (71°F), this humidity feels like traveling through a warm, damp blanket, making outdoor excursions feel sticky and a bit stifling, often prompting the need for frequent breaks to stay refreshed.

August Average Humidity in Koumac

This chart illustrates the average monthly humidity levels in Koumac, 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 Koumac is approximately 74%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Koumac

In Koumac in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Koumac.

Maximum UV Index Levels in Koumac for August

The chart shows the monthly maximum UV Index (UVI) for Koumac 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 Koumac typically reaches 10, which falls under the very high exposure category.

Data source: Koumac 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 Koumac Compares to Other Months

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

This table compares monthly weather conditions in Koumac, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	174 mm (6.9 inches)	81%	extreme
February Weather	27°C (80°F)	183 mm (7.2 inches)	81%	extreme
March Weather	26°C (80°F)	121 mm (4.7 inches)	81%	extreme
April Weather	25°C (78°F)	104 mm (4.1 inches)	82%	extreme
May Weather	24°C (75°F)	49 mm (1.9 inches)	79%	very high
June Weather	22°C (72°F)	30 mm (1.2 inches)	74%	high
July Weather	21°C (71°F)	54 mm (2.1 inches)	71%	very high
August Weather	21°C (71°F)	53 mm (2.1 inches)	74%	very high
September Weather	22°C (72°F)	16 mm (0.6 inches)	73%	extreme
October Weather	24°C (75°F)	61 mm (2.4 inches)	75%	extreme
November Weather	25°C (77°F)	40 mm (1.6 inches)	79%	extreme
December Weather	26°C (79°F)	148 mm (5.8 inches)	80%	extreme