Measurements:
°C
°F
CURRENT WEATHER
10:01
Killarney
34°F
SW 2 mph
Feels like: 34°F
Precip: 13%
World Resorts Ireland Killarney Weather

7 Day Weather Forecast

10.19
mon
DAY
50°F
SW 4 mph
precip
6%
NIGHT
42°F
W 1 mph
precip
28%
10.20
tue
DAY
52°F
N 14 mph
precip
25%
NIGHT
44°F
SE 25 mph
precip
72%
10.21
wed
DAY
50°F
E 16 mph
precip
36%
NIGHT
38°F
NE 6 mph
precip
22%
10.22
thu
DAY
52°F
NW 6 mph
precip
49%
NIGHT
46°F
SE 30 mph
precip
26%
10.23
fri
DAY
46°F
E 22 mph
precip
25%
NIGHT
46°F
E 9 mph
precip
16%
10.24
sat
DAY
50°F
N 7 mph
precip
86%
NIGHT
60°F
NE 11 mph
precip
55%
10.25
sun
DAY
52°F
E 24 mph
precip
19%
NIGHT
40°F
NE 6 mph
precip
17%

Killarney Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Killarney was 14.8°F. The maximum and minimum values were 13.5°F and 15.7°F respectively.

Killarney on the Weather Map

Best Time to Visit Killarney
The most sunny months:
April 5 days
May 4 days
March 4 days
The most warm months:
July 66.6 °F
August 65.5 °F
June 63.4 °F
Warmest sea temperature:
August 62.6 °F
July 62.1 °F
September 60.2 °F
The most cold months:
January 44.8 °F
December 46.6 °F
February 46.8 °F
The most rainy months:
December 9 days
January 9 days
November 8 days
The most windy months:
February 11 mph
December 11 mph
January 10 mph
more details