Galway weather in September (Galway County, Ireland)

How does the September weather in Galway compare to other months? Find all the essential weather information for this month in our guide.

Temperatures

The month of September in Galway typically includes moderate temperatures and moderate rainfall. You can expect daytime temperatures to reach around 18°C, while the nights will see a decline to about 10°C.

Precipitation

Galway in September usually receives moderate rainfall, averaging around 86 mm for the month. On average, there are about 20 days with rain during this month.

Average sunshine

The area sees fewer sunny days, with a projection of about 93 hours of sunshine. This reduced sunlight makes it ideal for those who prefer cooler, overcast conditions over bright sunny days.

If you prefer dry days with pleasant temperatures, July typically offers the best circumstances. While January, February, November and December tend to showcase less optimal conditions.

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

 

Galway, monthly averages in September

Min Temperature 10°C  

Max Temperature 18°C  

Chance of Rain 65%  

Precipitation 86 mm  

Rainy days 20 days  

Humidity 83% *  

Sunshine 93 hours *  

Percentage Sunshine 26% *  

* Data from: Claremorris, Ireland (49 KM, 30 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 Galway, 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

4/10

Cycling

6/10

Walking

6/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

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

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.