September Weather in Kolonga, Tonga

Last updated: August 31, 2025

In September, the average temperature in Kolonga, Tonga reaches a pleasant 23°C (73°F). Expect a minimum of around 19°C (67°F) and a comfortable maximum of 25°C (78°F). Be prepared for some rain, as the area sees an average precipitation of 140 mm (5.5 in) over approximately 12 days. With an average humidity of 78%, it’s the perfect time to enjoy the unique climate of this beautiful destination!

September Temperature in Kolonga

In September in Kolonga, the average temperature is 23°C (73°F). The maximum can reach 25°C (78°F), while the minimum can drop to as low as 19°C (67°F). This pleasant climate makes it an ideal time for traveling and exploring the vibrant surroundings of Kolonga.

September Weather in Kolonga: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kolonga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kolonga, September typically has an average temperature of 23°C (73°F), with highs reaching up to 25°C (78°F) and lows dropping to around 19°C (67°F).

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

September Precipitation in Kolonga

In Kolonga in September, the total precipitation amount is 140 mm (5.5 in) over the course of 12 days.

September Precipitation Trends in Kolonga

The chart displays monthly precipitation patterns in Kolonga, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Kolonga, September typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Kolonga

In Kolonga in September, humidity is 78%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities a little challenging but still enjoyable for travelers who appreciate a tropical atmosphere.

September Average Humidity in Kolonga

This chart illustrates the average monthly humidity levels in Kolonga, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Kolonga is approximately 78%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Kolonga

In Kolonga in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Kolonga.

Maximum UV Index Levels in Kolonga for September

The chart shows the monthly maximum UV Index (UVI) for Kolonga in September, 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 September, the maximum UV index in Kolonga typically reaches 11, which falls under the extreme exposure category.

Data source: Kolonga September 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 September Weather in Kolonga Compares to Other Months

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

This table compares monthly weather conditions in Kolonga, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	240 mm (9.5 inches)	83%	extreme
February Weather	26°C (80°F)	308 mm (12.1 inches)	82%	extreme
March Weather	26°C (79°F)	299 mm (11.8 inches)	81%	extreme
April Weather	26°C (79°F)	240 mm (9.5 inches)	82%	extreme
May Weather	25°C (76°F)	194 mm (7.6 inches)	81%	very high
June Weather	24°C (75°F)	99 mm (3.9 inches)	74%	high
July Weather	23°C (73°F)	124 mm (4.9 inches)	76%	very high
August Weather	22°C (73°F)	84 mm (3.3 inches)	76%	very high
September Weather	23°C (73°F)	140 mm (5.5 inches)	78%	extreme
October Weather	23°C (74°F)	160 mm (6.3 inches)	81%	extreme
November Weather	24°C (76°F)	100 mm (3.9 inches)	82%	extreme
December Weather	25°C (78°F)	186 mm (7.3 inches)	83%	extreme