Portmarnock Weather in March

In Portmarnock, March brings low daytime temperatures around 11°C (52°F), with nights cooling to 5°C (41°F). It is the driest month of the year, with minimal rainfall.

Rainfall in Portmarnock in March

Expect the least amount of rain this month, making it a good opportunity for outdoor activities, even though days are on the cooler side. Analyzing past climate data, one can expect approximately 16 days of rain, averaging 64 mm (2.5 in). With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Portmarnock in March

In March, Portmarnock gets low temperatures, with highs of 11°C (52°F). Nights cool to around 5°C (41°F). The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. At 5°C (41°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Portmarnock in March

With about 110 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Portmarnock in March

Wind speeds average 6 m/s (12 knots) during March. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.

Average water temperature in March

The water temperature is only 8°C (46°F) this month, cold enough that most people will want to stay out. Hardy swimmers may manage a quick dip, but it won't be comfortable.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.