Average sea water temperature in October:
+56.1°F
| Minimum sea water temperature in October: | 60.3°F |
| Maximum sea water temperature in October: | 52.3°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 57.5°F. The highest and lowest sea temperatures during the month were 60.3°F and 53.6°F.
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| Killarney |
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| Killarney |
14 days
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Monthly sea water temperature in Killarney, °F
Which Ireland resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Cork | 58.2°F | 56.7°F |
| Dublin | 57.8°F | 56.8°F |
| Limerick | 57.5°F | 56.1°F |
| Killarney | 57.5°F | 56.1°F |
Best time for vacation in Killarney
Killarney on a weather map
24 Hours Forecast
Killarney
Local time: 06:42
October 30, friday
0900

57°F
N
11 mph
11 mph
1200

59°F
N
12 mph
12 mph
1500

59°F
N
9 mph
9 mph
1800

57°F
NW
7 mph
7 mph
2100

57°F
NW
6 mph
6 mph
October 31, saturday
0000

55°F
NW
6 mph
6 mph
0300

55°F
NW
5 mph
5 mph
0600

55°F
NW
4 mph
4 mph

























