Portmarnock weather in May (Dublin County, Ireland)

How's the weather trend in Portmarnock as May approaches? Find out what kind of weather to expect during this month.

Temperatures

In May, Portmarnock typically experiences moderate temperatures and moderate rainfall. Daytime temperatures hover around 15°C, while nights can cool down to about 9°C.

Precipitation

Portmarnock in May usually receives moderate rainfall, averaging around 66 mm for the month. Climate data suggests that about 16 days will experience rainfall.

Average sunshine

Expect a moderate amount of sunlight, with approximately 188 hours. This means a pleasant mix of sun and clouds.

If your ideal day consists of dry skies and moderate temperatures July and August generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Portmarnock climate page with graphs.

 

Portmarnock, monthly averages in May

Min Temperature 9°C  

Max Temperature 15°C  

Water Temperature 10°C *  

Chance of Rain 53%  

Precipitation 66 mm  

Rainy days 16 days  

Humidity 68% *  

Windspeed 14 km/h *  

Sunshine 188 hours *  

Percentage Sunshine 42% *  

* Data from: Dublin, Ireland (7 KM, 4 Miles).

Where to go in Ireland in May

Find out more about the weather in Ireland and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay. With a water temperature of around 10°C there is no need to bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Portmarnock.

Our site offers climate and forecast data for every country in the world. Are you going to Ireland? On this website you can find historical weather averages for many cities in Ireland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.