Portmarnock Weather Today

Daily Weather Forecast & Temperature in Portmarnock

few clouds
few clouds
H: 6° L: 4°
Feels like
AQI: Fair (2/5)
Humidity
86%
Dew 3°
Wind speed
20.38 km/h
WSW · G40.75
Pressure
993 hPa
Visibility
10 km
Cold Weather
Temperature is 5°. Bundle up if going outside.
High Winds
Wind speed is 20.38 km/h. Secure loose objects.
High Humidity
Humidity is 86%. May feel uncomfortable.
Weather Summary
Currently in Portmarnock, expect varied conditions with cold temperatures around 5°, though it feels cooler. Winds are moderate winds. High humidity may make it feel uncomfortable.
Precipitation Probability
0%
03
0%
06
0%
09
0%
12
0%
15
32%
18
0%
21
0%
00
0%
03
0%
06
0%
09
0%
12
0%
15
0%
18
0%
21
0%
00
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
Mon
03:00
 
 
 
Mon
15:00
 
 
 
Tue
03:00
 
 
 
Tue
15:00
 
 
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
07:41
Sunset
Sunset
17:36
Moon Phase
Waxing Crescent (34%)
Timezone: GMT+05:30
Last updated: 2026-02-16 07:22:59
Location Info
Latitude
Latitude
53.423061
Longitude
Longitude
-6.137500
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More about Portmarnock

Portmarnock, Ireland: Climate and Weather Year Round

Portmarnock is a beautiful coastal town located in County Dublin, Ireland. It is known for its stunning sandy beaches and picturesque views of the Irish Sea. The climate in Portmarnock is classified as a temperate maritime climate, characterized by mild winters and cool summers. In this article, we will explore the weather patterns and climate conditions in Portmarnock throughout the year.

Temperature

The average annual temperature in Portmarnock is around 10°C (50°F). The warmest month is typically July, with an average high temperature of 19°C (66°F). The coldest month is usually January, with an average low temperature of 2°C (36°F). However, it is worth noting that temperatures can vary throughout the year, and extreme heatwaves or cold spells are relatively rare in this region.

In the summer months, temperatures in Portmarnock are generally pleasant, ranging from 15°C (59°F) to 20°C (68°F). It is a popular time for tourists to visit the area, as the weather is ideal for outdoor activities and beach visits. In the winter months, temperatures can drop to around 5°C (41°F), and occasional frost and snowfall may occur.

Rainfall

Portmarnock experiences a moderate amount of rainfall throughout the year, typical of Ireland's maritime climate. The wettest months are usually December and January, with an average of 70-80 mm (2.8-3.1 inches) of rainfall. The driest months are generally April and May, with an average of 40-50 mm (1.6-2 inches) of rainfall.

It is advisable to carry an umbrella or raincoat when visiting Portmarnock, as showers can occur at any time of the year. However, the rain is usually light and intermittent, allowing for outdoor activities to continue after a brief spell of rain.

Sunshine

Portmarnock enjoys a moderate amount of sunshine, particularly during the summer months. On average, the town receives around 1,500 hours of sunshine per year. The sunniest months are usually May and June, with an average of 6-7 hours of sunshine per day.

During the winter months, the amount of sunshine decreases, with an average of 1-2 hours of sunshine per day. However, even during these months, there are still opportunities to enjoy outdoor activities and explore the beautiful coastal scenery.

Wind

Being a coastal town, Portmarnock is often influenced by sea breezes and prevailing winds. The prevailing winds in this region come from the southwest, with occasional gusts from the northwest. The average wind speed in Portmarnock is around 15-20 km/h (9-12 mph), but it can increase during storms or strong weather systems.

It is important to take wind conditions into account, especially if you plan to participate in water sports or outdoor activities near the coast. The wind can add an extra challenge to activities such as golf or kiteboarding, making them more exciting for enthusiasts.

Tides

The tides in Portmarnock follow the lunar cycle and can vary throughout the day. It is essential to check the tide tables before planning beach activities or walks along the shoreline. The local tide charts provide information on high and low tides, allowing visitors to plan their activities accordingly and ensure their safety.

Climate Summary

Overall, Portmarnock experiences a mild and temperate climate throughout the year, suitable for a range of outdoor activities and recreational pursuits. The moderate amount of rainfall and consistent temperatures make it an attractive destination for those who enjoy coastal landscapes and exploring the outdoors.

Whether you are looking to relax on the beach, play golf on world-class courses, or explore the nearby attractions, Portmarnock offers a pleasant climate and beautiful scenery year-round.

So, pack your bags and experience the charm of Portmarnock, Ireland, where you can enjoy the best of the coastal climate in a picturesque setting!

FAQ's about Portmarnock
What is the Latitude and Longitude of Portmarnock?

Portmarnock's Latitude is 53.423061 & Longitude is -6.137500.

What is the weather in Portmarnock today?

Weather in Portmarnock is 5° today.

What is the climatic condition of Portmarnock today?

Climate Conditions in Portmarnock shows few clouds today.

What is the humidity in Portmarnock today?

Humidity in Portmarnock is 86% today.

What is the wind speed in Portmarnock today?

Wind speed in Portmarnock is 20.38 km/h, flowing at 240° WSW wind direction.

What does it feel like in Portmarnock today?

It feels like 1° in Portmarnock today, with 20% cloud cover and 10 km visibility.

Weather in Portmarnock