We've looked at the most up-to-date weather data for Ireland, covering the last 12 years up to 2023, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Ireland weather in September.
What's the temperature like in Ireland during September?
The temperature reaches around 16℃ during the daytime in September, falling away to 8℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in Ireland during September?
On average, there will be 7 rainy days during the month, amounting to 95.9mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Ireland during September?
You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during September. With moderate air temperatures, any breeze will feel cool.
Things to do in Ireland
Ireland Blog posts
From Ireland's most popular travel bloggers
18th November 2022 by Journalist On The RunDublin in Winter – Unique places to explore
Usually, when planning a trip, the preferred time to visit Ireland is in the Summer. Despite the rain, the locals are always friendly, and it’s an off-tourist season, so seeing attractions is much easier… Winter in Dublin also makes for a significantly more affordable trip with fewer tourists and a more relaxing atmosphere. Make sure to dress warmly and bring an extra beanie to enjoy everything Ireland offers in the winter....
13th March 2023 by Eat Sleep Breathe TravelThe Best Things to Do in Cobh, Ireland
Cobh in County Cork is the perfect destination for those seeking a charming and vibrant village. Pronounced 'cove', Cobh is ideal for a day trip from Cork, or for those who prefer smaller towns, a great place to stay overnight. Most notably, Cobh was the last port of call for the ill-fated Titanic, and is now home to a number of attractions, including the Cobh Heritage Centre and St. Colman's Cathedral....
13th March 2023 by Eat Sleep Breathe Travel7 Luxury Dublin Hotels That Are Worth the Splurge
Treating yourself to a luxurious stay in Dublin? The Merrion Hotel is a great option, offering beautiful rooms with amazing service and all the little extras that make a vacation special. For a few days of indulgence, these luxury Dublin hotels are sure to make your trip unforgettable....
13th March 2023 by Eat Sleep Breathe TravelThe Best Kilkenny Pubs for a Pint
visiting Kilkenny is a must when in Ireland. Located just a couple of hours away from Dublin, this medieval city is a favourite among both locals and tourists. Exploring the castle, admiring the historical buildings, and touring the Smithwicks Brewery are just some of the activities to enjoy in Kilkenny. All of these activities are sure to provide a memorable experience....
13th March 2023 by Eat Sleep Breathe Travel12 Awesome Things to Do in Doolin (Other Than the Cliffs of Moher)
Doolin, located on the Wild Atlantic Way and just 90 minutes from, is renowned for its proximity to the Cliffs of Moher. However, there is much more to this Irish town than just the Cliffs. With a range of activities and attractions, Doolin is an ideal destination for day trips or those on an Irish road trip....
13th March 2023 by Eat Sleep Breathe TravelThe Ultimate Dublin Itinerary: 1, 2, and 3 Day Guides to Dublin
It is impossible to visit Ireland without dedicating at least one or two days to exploring the captivating city of Dublin. From its stunning architecture to its plethora of museums, parks and pubs, Dublin has something to offer everyone. With so much to see and do, it can be difficult to decide how to make the most of your time in the city....
13th March 2023 by Eat Sleep Breathe TravelThe Best Things to Do in Dingle: A Guide to Dingle, Ireland
Dingle is one of my all-time favourite places in Ireland. Its name alone is enough to make it stand out, and it is truly an adorable place with plenty to do. Many people choose to visit Dingle as a day trip from Killarney, and it is sure to be a memorable experience....
Weather in Ireland
Our month-by-month guide to the weather and climate in Ireland