29.08
sat
sat
Day
57°F
SE 4 mph
Precip.
35%
35%
Night
55°F
N 4 mph
Precip.
34%
34%
30.08
sun
sun
Day
61°F
NE 8 mph
Precip.
42%
42%
Night
55°F
SE 8 mph
Precip.
42%
42%
31.08
mon
mon
Day
59°F
E 9 mph
Precip.
22%
22%
Night
54°F
N 6 mph
Precip.
28%
28%
01.09
tue
tue
Day
59°F
NE 8 mph
Precip.
46%
46%
Night
55°F
NW 3 mph
Precip.
83%
83%
02.09
wed
wed
Day
64°F
NE 10 mph
Precip.
34%
34%
Night
55°F
E 9 mph
Precip.
28%
28%
03.09
thu
thu
Day
61°F
E 16 mph
Precip.
10%
10%
Night
52°F
E 7 mph
Precip.
38%
38%
04.09
fri
fri
Day
59°F
E 13 mph
Precip.
11%
11%
Night
52°F
NE 4 mph
Precip.
33%
33%
sea water
temperature
temperature
| Killarney |
monthly
weather
weather
| Killarney |
current
weather
weather
| Killarney |
14 days
forecast
forecast
| Killarney |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 64.4°F. The highest and lowest sea temperatures during the month were 65.5°F and 63.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 59.7°F. The highest and lowest sea temperatures during the month were 62.2°F and 57.9°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: 04:36
August 29, saturday
0600
55°F
S
6 mph
6 mph
0900
55°F
SE
4 mph
4 mph
1200
57°F
SE
4 mph
4 mph
1500
64°F
E
10 mph
10 mph
1800
63°F
E
9 mph
9 mph
2100
55°F
NE
4 mph
4 mph
August 30, sunday
0000
55°F
N
4 mph
4 mph
0300
55°F
NW
5 mph
5 mph
