Portmarnock Weather Today

Daily Weather Forecast & Temperature in Portmarnock

broken clouds
broken clouds
H: 10° L: 9°
Feels like
AQI: (/5)
Humidity
57%
Dew 1°
Wind speed
22.21 km/h
W
Pressure
1020 hPa
Visibility
10 km
High Winds
Wind speed is 22.21 km/h. Secure loose objects.
Weather Summary
Currently in Portmarnock, expect varied conditions with cold temperatures around 9°. Winds are moderate winds.
Precipitation Probability
0%
19
0%
22
0%
01
0%
04
0%
07
0%
10
0%
13
0%
16
0%
19
0%
22
0%
01
0%
04
0%
07
0%
10
20%
13
100%
16
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
Sun
19:00
 
 
 
Mon
07:00
 
11°
 
11°
 
10°
Mon
19:00
10°
 
 
 
Tue
07:00
11°
 
13°
 
12°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:48
Sunset
Sunset
20:05
Moon Phase
Waning Gibbous (76%)
Timezone: GMT+05:30
Last updated: Apr 5, 2026 5:30 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
53.423061
Longitude
Longitude
-6.137500
Embed This Weather

Copy the code below to embed Portmarnock weather on your website:

<iframe src="https://nearweather.com/embed/portmarnock-ie-2962019" width="350" height="200" frameborder="0" style="border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,0.1);"></iframe>
More about Portmarnock
Content curated by the NearWeather editorial team · Updated periodically

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!

Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
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 9° today.

What is the climatic condition of Portmarnock today?

Climate Conditions in Portmarnock shows broken clouds today.

What is the humidity in Portmarnock today?

Humidity in Portmarnock is 57% today.

What is the wind speed in Portmarnock today?

Wind speed in Portmarnock is 22.21 km/h, flowing at 280° W wind direction.

What does it feel like in Portmarnock today?

It feels like 7° in Portmarnock today, with 75% cloud cover and 10 km visibility.

Weather in Portmarnock