October Weather in Chilaw, Sri Lanka

Last updated: August 31, 2025

In Chilaw, Sri Lanka, the average temperature in October hovers around 27°C (81°F), with a minimum of 24°C (76°F) and a maximum reaching 31°C (87°F). Expect substantial rainfall, with an average precipitation of 311 mm (12.2 in) spread over 29 days. Humidity levels are notably high, averaging around 81%, creating a warm and often lush atmosphere.

October Temperature in Chilaw

In October in Chilaw, the average temperature is 27°C (81°F), with maximums reaching 31°C (87°F) and minimums dropping to 24°C (76°F). This pleasant weather makes it an ideal destination for travelers seeking warmth and sunshine.

October Weather in Chilaw: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Chilaw, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chilaw, October typically has an average temperature of 27°C (81°F), with highs reaching up to 31°C (87°F) and lows dropping to around 24°C (76°F).

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

October Precipitation in Chilaw

In Chilaw in October, the precipitation amount is 311 mm (12.2 in) over the course of 29 days.

October Precipitation Trends in Chilaw

The chart displays monthly precipitation patterns in Chilaw, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Chilaw, October typically receives around 311 mm (12.2 inches) of precipitation spread over approximately 29 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Chilaw

In Chilaw in October humidity is 81%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy blanket enveloping you, making travel quite uncomfortable as it can quickly drain your energy and require frequent hydration breaks.

October Average Humidity in Chilaw

This chart illustrates the average monthly humidity levels in Chilaw, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Chilaw is approximately 81%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Chilaw

In Chilaw in October, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Chilaw.

Maximum UV Index Levels in Chilaw for October

The chart shows the monthly maximum UV Index (UVI) for Chilaw in October, 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 October, the maximum UV index in Chilaw typically reaches 13, which falls under the extreme exposure category.

Data source: Chilaw October 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 October Weather in Chilaw Compares to Other Months

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

This table compares monthly weather conditions in Chilaw, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	45 mm (1.8 inches)	77%	extreme
February Weather	27°C (82°F)	18 mm (0.7 inches)	73%	extreme
March Weather	28°C (83°F)	83 mm (3.3 inches)	74%	extreme
April Weather	28°C (83°F)	122 mm (4.8 inches)	74%	extreme
May Weather	28°C (83°F)	266 mm (10.5 inches)	76%	extreme
June Weather	28°C (83°F)	204 mm (8.0 inches)	82%	extreme
July Weather	28°C (82°F)	123 mm (4.8 inches)	82%	extreme
August Weather	27°C (81°F)	155 mm (6.1 inches)	83%	extreme
September Weather	27°C (81°F)	199 mm (7.8 inches)	82%	extreme
October Weather	27°C (81°F)	311 mm (12.2 inches)	81%	extreme
November Weather	27°C (81°F)	308 mm (12.1 inches)	80%	extreme
December Weather	27°C (81°F)	139 mm (5.5 inches)	80%	very high