October Weather in Killarney, Canada

Last updated: June 18, 2025

In Killarney, Canada, the average temperature in October hovers around 4°C (40°F). However, don't be surprised if you experience a chilly minimum of -10°C (15°F) or a surprising maximum of 30°C (86°F) during your stay. Expect approximately 48 mm (1.9 in) of precipitation spread across 7 days, paired with an average humidity of 76%. Make sure to prepare accordingly!

October Temperature in Killarney

In October in Killarney, the average temperature is 4°C (40°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -10°C (15°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and cold conditions.

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

The chart illustrates October temperature patterns in Killarney, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Killarney, October typically has an average temperature of 4°C (40°F), with highs reaching up to 30°C (86°F) and lows dropping to around -10°C (15°F).

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

October Precipitation in Killarney

In Killarney in October, the total precipitation amount is 48 mm (1.9 in) over a span of 7 days.

October Precipitation Trends in Killarney

The chart displays monthly precipitation patterns in Killarney, 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 Killarney, October typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 7 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Killarney

In Killarney in October humidity is 76%. With an average temperature of 4°C (40°F), this humidity feels like a chilly embrace, making travel feel damp and slightly clammy, as the cool air clings to your skin, requiring extra layers to stay comfortable while experiencing the sights.

October Average Humidity in Killarney

This chart illustrates the average monthly humidity levels in Killarney, 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 Killarney is approximately 76%, 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 Killarney

In Killarney in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Killarney for better planning.

Maximum UV Index Levels in Killarney for October

The chart shows the monthly maximum UV Index (UVI) for Killarney 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 Killarney typically reaches 4, which falls under the moderate exposure category.

Data source: Killarney 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 Killarney Compares to Other Months

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

This table compares monthly weather conditions in Killarney, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-13°C (8°F)	15 mm (0.6 inches)	92%	low
February Weather	-15°C (5°F)	15 mm (0.6 inches)	90%	moderate
March Weather	-5°C (23°F)	27 mm (1.1 inches)	88%	moderate
April Weather	2°C (35°F)	26 mm (1.0 inches)	81%	very high
May Weather	11°C (52°F)	40 mm (1.6 inches)	74%	very high
June Weather	18°C (64°F)	87 mm (3.4 inches)	72%	very high
July Weather	20°C (68°F)	63 mm (2.5 inches)	74%	very high
August Weather	18°C (65°F)	70 mm (2.8 inches)	76%	very high
September Weather	13°C (56°F)	74 mm (2.9 inches)	73%	high
October Weather	4°C (40°F)	48 mm (1.9 inches)	76%	moderate
November Weather	-5°C (24°F)	29 mm (1.1 inches)	86%	low
December Weather	-10°C (15°F)	23 mm (0.9 inches)	91%	low