Portmarnock weather in October (Dublin County, Ireland)

What is the weather forecast for Portmarnock in October? Thinking about a visit? Explore this page for a full overview of the weather conditions this month.

Temperatures

In October, 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 October usually receives moderate rainfall, averaging around 87 mm for the month. Past climate data indicates that roughly 17 days will see rain.

Average sunshine

This month sees fewer sunny days, with about 97 hours of sunshine, perfect for those who enjoy cooler temperatures.

In case you lean more towards enjoying temperate temperatures and rain-free days July and August typically offer the most optimal weather. In contrast, January, February and December tend to have less optimal conditions.

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

 

Portmarnock, monthly averages in October

Min Temperature 9°C  

Max Temperature 15°C  

Water Temperature 14°C *  

Chance of Rain 55%  

Precipitation 87 mm  

Rainy days 17 days  

Humidity 75% *  

Windspeed 18 km/h *  

Sunshine 97 hours *  

Percentage Sunshine 31% *  

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

Where to go in Ireland in October

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 14°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

4/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

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.