

Leaflet | Tiles © Esri
In March warmest sea in Ireland is usually observed in the following locations: Cork, Killarney, Dublin.
Table below shows the average sea water temperature for marine resorts of Ireland in March for the last three years.
Place name | March 2025 | March 2024 | March 2023 |
---|---|---|---|
Cork | 48.6°F | 48.4°F | 48.2°F |
Killarney | 48.4°F | 48.7°F | 48.2°F |
Dublin | 46.6°F | 46.4°F | 46.0°F |
Limerick | 46.5°F | 47.1°F | 47.0°F |
Charts below show average sea water temperature for Ireland resorts with the warmest sea in March.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
50.4
53.3
56.8
59.5
60.3
60.3
57.2
52.9
49.7
47.7
47.8
48.7
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
50.1
52.7
56
59
61
60.5
57.6
53.2
50.2
47.7
47.2
48.2
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
49.3
53.1
56.4
58.8
59.6
58.7
55.8
51.4
47.9
45.5
45.5
46.8
You can also check other months of the year to see sea temperature of Ireland resorts at that time.