Killarney weather in September (Kerry, Ireland)

Is September a good time to explore Killarney weather-wise? Our guide gives you the essential weather details for this month.

Temperatures

The typical weather for September in Killarney includes moderate temperatures and moderate rainfall. Throughout the day, temperatures can rise to about 17°C. At night, they generally drop to 10°C.

Precipitation

Killarney in September usually receives moderate rainfall, averaging around 93 mm for the month. This is the driest month of the year. Based on our climate data of the past 30 years, about 19 days of rain are anticipated.

Average sunshine

The month brings about 118 hours of sunlight, offering a comfortable mix of sun and shade.

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

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

 

Killarney, monthly averages in September

Min Temperature 10°C  

Max Temperature 17°C  

Chance of Rain 64%  

Precipitation 93 mm  

Rainy days 19 days  

Humidity 77% *  

Sunshine 118 hours *  

Percentage Sunshine 30% *  

* Data from: Valentia, Ireland (52 KM, 32 Miles).

Where to go in Ireland in September

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?

For visitors traveling to Killarney, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming

6/10

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 Killarney.

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.