17.12
wed
wed
Day
50°F
NE 8 mph
Precip.
0%
0%
Night
39°F
N 6 mph
Precip.
61%
61%
18.12
thu
thu
Day
45°F
E 10 mph
Precip.
100%
100%
Night
43°F
E 20 mph
Precip.
100%
100%
19.12
fri
fri
Day
46°F
NE 11 mph
Precip.
0%
0%
Night
48°F
N 16 mph
Precip.
100%
100%
20.12
sat
sat
Day
45°F
NE 7 mph
Precip.
74%
74%
Night
34°F
NW 5 mph
Precip.
0%
0%
21.12
sun
sun
Day
41°F
SW 4 mph
Precip.
0%
0%
Night
32°F
N 2 mph
Precip.
0%
0%
22.12
mon
mon
Day
39°F
N 6 mph
Precip.
100%
100%
Night
41°F
NW 5 mph
Precip.
100%
100%
23.12
tue
tue
Day
45°F
SW 6 mph
Precip.
0%
0%
Night
32°F
SW 5 mph
Precip.
0%
0%
24.12
wed
wed
Day
41°F
SW 4 mph
Precip.
0%
0%
Night
41°F
SW 5 mph
Precip.
71%
71%
25.12
thu
thu
Day
45°F
SW 6 mph
Precip.
0%
0%
Night
34°F
S 3 mph
Precip.
0%
0%
26.12
fri
fri
Day
39°F
SW 6 mph
Precip.
0%
0%
Night
30°F
SW 6 mph
Precip.
0%
0%
27.12
sat
sat
Day
37°F
SW 8 mph
Precip.
0%
0%
Night
36°F
S 4 mph
Precip.
0%
0%
28.12
sun
sun
Day
37°F
SW 4 mph
Precip.
0%
0%
Night
28°F
S 2 mph
Precip.
0%
0%
29.12
mon
mon
Day
39°F
S 4 mph
Precip.
0%
0%
Night
36°F
E 2 mph
Precip.
0%
0%
30.12
tue
tue
Day
43°F
E 6 mph
Precip.
0%
0%
Night
41°F
S 17 mph
Precip.
0%
0%
sea water
temperature
temperature
| Killarney |
monthly
weather
weather
| Killarney |
current
weather
weather
| Killarney |
7 days
forecast
forecast
| Killarney |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 50.6°F. The highest and lowest sea temperatures during the month were 51.1°F and 50.2°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 48.2°F. The highest and lowest sea temperatures during the month were 49.3°F and 47.5°F.
Air temperature in Killarney, °F
Precipitation total in Killarney, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Killarney
Killarney on a weather map
24 Hours Forecast
Killarney
Local time: 22:47
December 18, thursday
0000
39°F
N
6 mph
6 mph
0300
41°F
N
6 mph
6 mph
0600
45°F
N
12 mph
12 mph
0900
46°F
N
14 mph
14 mph
1200
45°F
E
10 mph
10 mph
1500
43°F
E
12 mph
12 mph
1800
41°F
E
17 mph
17 mph
2100
43°F
NE
21 mph
21 mph
