Ballina Weather in September
Ballina in September sees moderate daytime temperatures of 17°C (63°F) and nighttime lows of 11°C (52°F). Rainfall is fairly high this month at around 104 mm (4.1 in), so pack a rain jacket to stay dry.
Rainfall in Ballina in September
This month experiences about 21 days of rain according to historical data, averaging 104 mm (4.1 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Ballina in September
In September, expect moderate temperatures in Ballina, with highs of 17°C (63°F) and lows of 11°C (52°F) at night. During September, you'll experience the summer season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Ballina in September
The month is characterized by fewer sunny days, with roughly 93 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.If your ideal day consists of dry skies and pleasant temperatures, May, July and August typically offer the best circumstances for Ballina.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Ballina's climate page.
Ballina Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
17°C (63°F)
Chance of Rain
70%
Precipitation
104 mm (4.1 in)
Rainy days
21 days
Humidity
83% *
Sunshine
93 hours *
Percentage Sunshine
26% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ballina typically stay consistent throughout September, with daily highs averaging around 17°C (63°F). Nights are cool, with lows typically ranging from 9°C (48°F) to 11°C (52°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Ballina in September
Browse day-by-day weather records for Ballina spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ballina historical weather extremes in September
Based on 49 years of weather observations in Ballina between 1976 and 2025, these are the recorded extremes.
- The hottest September day on record in Ballina reached 26°C (79°F) (September 7, 2023).
- On September 26, 2024, Ballina saw its coldest September day with temperatures maxing out at 9°C (48°F).
- Ballina registered its coldest September night on September 7, 1986, with temperatures dropping to 3°C (37°F).
Best Places in Ireland in September
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Ballina in September
For Ballina in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Ballina in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Ballina's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ballina climate overview or explore weather in Ireland.
