Weather in Killarney in September

General weather information about Killarney

Average annual temperature is 4.9 °C

Absolute maximum temperature: 32.0 °C

Absolute minimum temperature: -30.6 °C

Number of sunny days: 200 days

Number of rainy days: 119 days

Number of snow days: 46 days

Look at detailed online map of Killarney

* Weather data for Killarney Canada is based on climate observations for 2026 year

Killarney air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	0.2	4.8	1.5	11.5	27.4	30.2	32.0	30.5	30.6	24.0	9.4	6.4
Average daytime temperature (°C)	-6.9	-5.4	-5.1	4.0	21.3	25.5	24.2	24.4	21.5	9.8	2.4	1.0
Average temperature (°C)	-10.5	-10.7	-10.1	-0.4	14.5	20.0	18.5	19.1	16.0	5.7	-1.2	-3.2
Average night temperature (°C)	-13.5	-15.4	-14.0	-4.0	8.5	14.9	13.5	14.6	11.7	2.5	-4.3	-6.3
Absolute minimum temperature (°C)	-26.9	-30.6	-21.4	-12.6	-2.2	7.8	7.2	9.8	3.9	-13.6	-13.4	-12.8

Killarney monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	10.0	12.0	14.0	15.0	16.0	16.0	15.0	13.0	11.0	9.0	8.0
Daylight mean duration (h)	8.7	10.2	11.9	13.7	15.3	16.2	15.8	14.4	12.6	10.8	9.2	8.3
Daylight minimum duration (h)	8.0	9.0	10.0	12.0	14.0	15.0	15.0	13.0	11.0	9.0	8.0	8.0
Sunshine mean duration (h)	3.5	7.2	8.1	8.0	11.2	12.6	12.9	10.4	9.1	5.8	5.2	5.8
Precipitation (mm)	10	7	20	74	53	90	17	37	56	55	17	16
Sunny days	22	16	19	16	17	8	11	16	17	14	19	25
Rainy days	2	3	1	9	14	22	20	15	13	14	5	1
Snow days	7	9	11	5	0	0	0	0	0	3	6	5

Killarney - weather forecast by months

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Best time to visit Killarney:

The best time to visit Killarney during the most sunny months:

May — 11.2(h)
June — 12.6(h)
July — 12.9(h)
August — 10.4(h)

Months with the longest average daylight duration in Killarney:

June — 16.2(h)
July — 15.8(h)

The largest precipitation sum in Killarney is at

April — 74(mm)

May — 53(mm)

June — 90(mm)

September — 56(mm)

October — 55(mm)

Weather forecast in the closest to Killarney admin centers