Climate almanac
Portmarnock
Leinster, Ireland · 53.42°, -6.14°
What is the weather like in Portmarnock in May?
In May, Portmarnock is typically 60°F (15°C) during the day and 48°F (9°C) at night. The month brings about 2.3 in (57 mm) of precipitation in total.
- Average high60°F (15°C)
- Average low48°F (9°C)
- Precipitation2.3 in (57 mm)
- Clear or mostly clear days5
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)