September Weather in Kegalle, Sri Lanka

Last updated: August 31, 2025

In September, the average temperature in Kegalle, Sri Lanka hovers around 26°C (79°F). Expect a pleasant range with minimums dipping to 21°C (71°F) and maximums soaring up to 32°C (90°F). However, be prepared for some damp days, as precipitation averages 206 mm (8.1 in) over 26 days, contributing to an average humidity level of 81%.

September Temperature in Kegalle

In September in Kegalle, the average temperature is 26°C (79°F). Maximums can reach 32°C (90°F), while minimums can be as low as 21°C (71°F). It's a great time for travelers to enjoy warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in Kegalle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kegalle, September typically has an average temperature of 26°C (79°F), with highs reaching up to 32°C (90°F) and lows dropping to around 21°C (71°F).

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

September Precipitation in Kegalle

In Kegalle in September, the precipitation amount is 206 mm (8.1 in) over a duration of 26 days.

September Precipitation Trends in Kegalle

The chart displays monthly precipitation patterns in Kegalle, 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 Kegalle, September typically receives around 206 mm (8.1 inches) of precipitation spread over approximately 26 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 Kegalle

In Kegalle in September, humidity is 81%. With an average temperature of 26°C (79°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor adventures stickier and more draining, yet still vibrant with life—perfect for exploring local culture, but you'll want to take frequent breaks and stay hydrated.

September Average Humidity in Kegalle

This chart illustrates the average monthly humidity levels in Kegalle, 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 Kegalle is approximately 81%, 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 Kegalle

In Kegalle in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Kegalle, you can check here.

Maximum UV Index Levels in Kegalle for September

The chart shows the monthly maximum UV Index (UVI) for Kegalle 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 Kegalle typically reaches 14, which falls under the extreme exposure category.

Data source: Kegalle 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 Kegalle Compares to Other Months

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

This table compares monthly weather conditions in Kegalle, 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)	66 mm (2.6 inches)	80%	extreme
February Weather	27°C (81°F)	38 mm (1.5 inches)	72%	extreme
March Weather	28°C (83°F)	70 mm (2.7 inches)	69%	extreme
April Weather	28°C (82°F)	141 mm (5.6 inches)	69%	extreme
May Weather	27°C (81°F)	237 mm (9.3 inches)	79%	extreme
June Weather	27°C (80°F)	196 mm (7.7 inches)	85%	extreme
July Weather	27°C (80°F)	173 mm (6.8 inches)	81%	extreme
August Weather	26°C (79°F)	219 mm (8.6 inches)	85%	extreme
September Weather	26°C (79°F)	206 mm (8.1 inches)	81%	extreme
October Weather	26°C (79°F)	369 mm (14.5 inches)	89%	extreme
November Weather	26°C (79°F)	414 mm (16.3 inches)	88%	extreme
December Weather	26°C (79°F)	128 mm (5.0 inches)	86%	extreme