Portmarnock, Ireland | © Amit Chopade
Can I swim in Portmarnock in May? All information about water temperature in Irish Sea in May. Historical data, comparison and analysis.
Analysis of historical data on water temperature in Portmarnock in May
#minimal
46°F
#average
51°F
#maximum
55°F
Average temperature in Irish Sea in Portmarnock in May is 51°F. In general, this water temperature is unacceptable for swimming. But hardened people can afford to be in such water for 5-10 minutes.
Minimum water temperature in Portmarnock in May is 46°F, maximum - 55°F. In recent years, at the beginning of the month, the temperature value here is at around 50°F, and by the end of the month the water warms up to 53°F.
Average water temperature in the first decade is 49°F, in the middle of the month - 50°F, and at the end - 52°F.
Table of water temperature values in Portmarnock in May in recent years
| Day | 2024 | 2023 | 2022 | 2021 |
| 1 | 50°F | 48°F | 48°F | 51°F |
| 2 | 48°F | 50°F | 48°F | 53°F |
| 3 | 50°F | 48°F | 48°F | 53°F |
| 4 | 48°F | 48°F | 48°F | 50°F |
| 5 | 50°F | 48°F | 48°F | 48°F |
| 6 | 50°F | 48°F | 50°F | 53°F |
| 7 | 50°F | 48°F | 50°F | 50°F |
| 8 | 50°F | 48°F | 50°F | 53°F |
| 9 | 50°F | 48°F | 50°F | 48°F |
| 10 | 50°F | 48°F | 50°F | 48°F |
| 11 | 50°F | 50°F | 50°F | 53°F |
| 12 | 51°F | 50°F | 50°F | 50°F |
| 13 | 51°F | 50°F | 50°F | 48°F |
| 14 | 51°F | 50°F | 50°F | 51°F |
| 15 | 51°F | 51°F | 50°F | 48°F |
| 16 | 51°F | 50°F | 50°F | 53°F |
| 17 | 51°F | 51°F | 50°F | 48°F |
| 18 | 51°F | 51°F | 50°F | 51°F |
| 19 | 51°F | 51°F | 51°F | 50°F |
| 20 | 51°F | 51°F | 51°F | 48°F |
| 21 | 51°F | 51°F | 51°F | 53°F |
| 22 | 53°F | 51°F | 51°F | 53°F |
| 23 | 53°F | 51°F | 51°F | 51°F |
| 24 | 53°F | 51°F | 51°F | 51°F |
| 25 | 53°F | 50°F | 51°F | 53°F |
| 26 | 53°F | 51°F | 51°F | 53°F |
| 27 | 51°F | 51°F | 51°F | 51°F |
| 28 | 53°F | 51°F | 51°F | 51°F |
| 29 | 53°F | 51°F | 51°F | 50°F |
| 30 | 53°F | 53°F | 51°F | 53°F |
| 31 | 53°F | 51°F | 53°F | 53°F |
Water temperature in neighboring resorts
Details of the water temperature today in Portmarnock and forecast for the next week, see the link:
seatemperature.net/current/ireland/portmarnock-leinster-ireland-sea-temperature
