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Dublin Weather in September, Ireland

Dublin Averages September


  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month


  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    4.2 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    21 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years


    60 mm

Slide and Tap Other Months

Dublin Daily Averages September


September 2024
1 Avg 13º 55º
2 Avg 14º 57º
3 Avg 15º 59º
4 Avg 14º 57º
5 Avg 13º 55º
6 Avg 13º 55º
7 Avg 13º 55º
8 Avg 14º 57º
9 Avg 13º 55º
10 Avg 13º 55º
11 Avg 13º 55º
12 Avg 13º 55º
13 Avg 12º 54º
14 Avg 12º 54º
15 Avg 13º 55º
16 Avg 12º 54º
17 Avg 11º 52º
18 Avg 11º 52º
19 Avg 12º 54º
20 Avg 12º 54º
21 Avg 11º 52º
22 Avg 11º 52º
23 Avg 11º 52º
24 Avg 13º 55º
25 Avg 12º 54º
26 Avg 12º 54º
27 Avg 13º 55º
28 Avg 13º 55º
29 Avg 13º 55º
30 Avg 12º 54º
Avg Historical Daily Average

September Weather Averages

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What's the weather like in Dublin in September


With the advent of September, the autumn weather starts making its presence felt.

Temperatures start dipping gradually, with the average temperature now falling at about 14 degrees Celsius.

The average minimum and maximum temperatures during this time of the year are 10 degrees Celsius and 17 degrees Celsius respectively. 

Humidity & Rain

The average rainfall during this time of the year in the city of Dublin is about 60 mm, occurring over a period of 21 rainfall days.

The month of September in Dublin experiences a gradually increase in the amount of cloud cover, with the sky being overcast or mostly cloudy about 50 per cent to 56 per cent of the time.

Sunshine Hours

The sunshine hours estimated during this time of the year is about 4.2 hours on an average.

Over the course of September in Dublin, the length of the day rapidly decreases with the length of the day decreasing by 2 hours, 1 minute from the start to the end of the month. 

Sea Temperature

The average sea temperature during the month of September in Dublin is about 15 degrees Celsius or 59 degrees Fahrenheit.


The average hourly wind speed in Dublin increases during the month of September, from about 12.1 miles per hour to 13.4 miles per hour over the course of the entire month.

The hourly average wind direction in Dublin throughout the month of September is predominantly from the west, with the city experiencing a peak proportion of 40 per cent on the 1stof September.

Dress Code

With the city of Dublin experiencing a lovely autumn weather in the month of September, the dress code recommended during fall at Dublin are casuals and cool clothing.

As the temperature gradually drops during fall, it is recommended that you get ready for the cold, long winter ahead, by packing some winter wear as well.

Click here for Dublin's weather forecast for the next 14 days. Also, to get an idea of annual weather averages for Dublin, follow this link.

Dublin Hotels in September

Grand Canal Hotel

The Grand Canal Hotel is an upscale living facility located at a minute's walk from the Grand Canal in Ballsbridge, a 3-minute walk from DART trains and 11 minutes on foot from Aviva Stadium. This modern hotel features warm rooms decorated in earthy tones featuring free Wi-Fi, flat-screen TVs, tea and coffee-making facilities, and work desks, while upgraded rooms add laptop safes and balconies. The additional amenities include a traditional wood-panelled bar and restaurant offering live music, a gym, conference facilities and free parking.

The Croke Park Hotel

If you would like to stay at a luxury hotel in a great location in Dublin, Ireland, The Croke Park Hotel is a wise choice. Located across the street from Croke Park stadium, this hotel is an 8-minute walk from the IE trains, at a distance of 1.3 km from the city centre and 3.9 miles from Phoenix Park. This upbeat hotel by the Royal Canal has modern rooms featuring free Wi-Fi, air-conditioning, flat-screen TVs, minibars, safes, tea and coffee making facilities, and work desks, while upgraded rooms add iPod docks, access to a club level lounge, a boardroom and complimentary breakfast. The added amenities include fitness and business centres, free parking, electric car charging, a city shuttle, a classy bistro, a bar featuring a heated outdoor terrace, and bikes that are available to hire.

Ibis Dublin Hotel

Ibis Dublin Hotel is a low-key budget hotel located at a 6-minute walk from Red Cow tram stop, at a distance of 4 miles from the Irish Museum of Modern Art, and 5 miles from tours and beer tastings at the Guinness Storehouse. The hotel has functional rooms featuring tea and coffeemakers, free Wi-Fi, flat-screen TVs and sofas, while parking is complimentary, with a relaxed 24/7 bar, and a casual restaurant with round-the-clock snack service. The hotel is pet-friendly as well.

Hilton Dublin Airport

Hilton Dublin Airport Hotel is set in a modern building off the R139 motorway, at a distance of 3 km from Clongriffin train station, 7 km from Dublin Airport and 10 km from the Guinness Storehouse Museum. This sophisticated hotel has bright, chic rooms featuring custom-designed beds, Wi-Fi (at a fee), flat-screen TVs, tea and coffee making facilities, and minibars, while suites add floor-to-ceiling windows and separate living rooms. Other amenities on offer are an airport shuttle service, a relaxed grill restaurant with a fireplace that serves breakfast, lunch and dinner, a fitness centre and 9 meeting rooms. 

Bars and Restaurants

The Auld Dubliner

Located in the busy temple bar, The Auld Dubliner is an oasis of quiet in the city and serves great quality Irish food. With an environment that is usually quite busy, the pub plays awesome music and has attentive and professional bartenders. The place has an amazing vibe, a fun and friendly crowd, and lots and lots of options for beer. Apart from the great Irish live music, the lovely and buzzing crowd, the ambience and the atmosphere, what we love most about this pub is the delicious and mouth-watering food that they serve!

BANG Restaurant & Bar

A small, stylish venue where authentic Irish cuisine is prepared and served with carefully sourced ingredients, is the BANG Restaurant & Bar. The food here is innovatively prepared and the menu has an incredible value aside from being absolutely delicious. The restaurant has a quiet, laid back atmosphere and the restaurant is popular for its amazing service, incredible food as well as the wonderful atmosphere it offers to its guests. Also, the staff here is knowledgeable, very friendly and helpful. The staff goes out of its way to make its guests feel welcome and at home, and this is perhaps one of the star features of this place!

Toscana City Centre Italian Restaurant

The Toscana City Centre Italian Restaurant is an elegant dining room for Italian dishes prepared using ingredients from own farmhouse garden. Located on Dame St in Temple Bar, this lovely small restaurant right in the heart of Dublin is perfect for a special occasion with family, friends or even a romantic interest. In addition to the delicious food and attentive service on offer here, the tastes here are extremely flavoursome and the menu is quite extensive. Overall, this is a great old school Irish- Italian restaurant in the heart of the beautiful city of Dublin. 


L'Ecrivain is known to serve a full French gastronomic treatment on a la carte and tasting menus, using seasonal Irish ingredients and is a modern French restaurant much loved among tourists and locals alike. A great place to spend a special occasion in, the L'Ecrivain is highly recommended for its fantastic high quality food as well as service. In addition to its relaxed atmosphere and lovely food, the ingredients used here are incredibly fresh, and the cooking incorporates a classic French style. This is definitely one of the finest restaurants in the whole of Europe!

Things to do in Dublin in September

National Museum of Ireland

Ireland's leading museum institution, the National Museum of Ireland places substantial emphasis on national and some international archaeology, Irish history, Irish art, culture, and natural history. The institution houses 4 separate museums National Museum of Ireland Archaeology, National Museum of Ireland Decorative Arts and History, National Museum of Ireland - Country Life, and National Museum of Ireland - Natural History.

While the National Museum of Ireland - Natural History is a wonderful zoological museum showcasing outstanding examples of wildlife from Ireland and the far corners of the globe, the National Museum of Ireland Decorative Arts and History focuses on Ireland's economic, social, political and military progress through the ages. National Museum of Ireland - Country Life places emphasis on the times gone by in rural Ireland, the National Museum of Ireland Archaeology houses local archaeological finds from the Bronze Age, Vikings and Medieval times with some Egyptian items as well.

Ha'penny Bridge

The Ha'penny Bridge is a pedestrian bridge built in May 1816 over the River Liffey in the city of Dublin and is crossed by thousands of pedestrians every single day. This arch bridge, also a refurbished 19th-century cast-iron span & city symbol, lies in a strategic location for crossing to different attractions on the north and south sides. With a nice story and a rich historic past behind it, this beautiful and special bridge is spectacular to see at night when it is all lit up. Located in the heart of Dublin town, the quaint Ha'penny Bridge has a charm the beautiful Dublin city shall never lose! Marvellous and definitely worth a visit!

A ride on the Open Top Bus!

If you visit Dublin and do not take a ride on the Open Top Bus, you've definitely missed the part that's most fun! The iconic Green Top Open Bus, also fondly called the Hop On Hop Off bus or better the HOHO, is Dublin's popular item on a Dublin tourist's itinerary. Carrying millions of visitors each year to discover the amazing city of Dublin, the HOHO is still considered to be Dublin's original and best Sightseeing Tour. Hosting some of the best and most world famous Dublin tour guides, this bus includes stops to all of Dublin's top attractions. What's more? Two children get to travel free with every paying adult! The trip is well-worth your time, and definitely must be taken while in the city! Highly recommended!

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