Bundoran Weather in September
Bundoran in September sees moderate temperatures, with highs around 17°C (63°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 105 mm (4.1 in) on average, so pack waterproofs just in case.
Rainfall in Bundoran in September
Records from the past 30 years suggest around 22 days of rain, with 105 mm (4.1 in) average for the month. 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 Bundoran in September
September in Bundoran brings typical temperatures with highs around 17°C (63°F) and lows of 10°C (50°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Bundoran's climate page.
Bundoran Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
17°C (63°F)
Chance of Rain
72%
Precipitation
105 mm (4.1 in)
Rainy days
22 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Bundoran 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 Bundoran in September
Browse day-by-day weather records for Bundoran spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bundoran historical weather extremes in September
Based on weather observations in Bundoran between 1976 and 2025, these are the recorded extremes during September.
- Bundoran recorded its highest September temperature of 26°C (79°F) on September 7, 2023.
- Bundoran experienced its chilliest September day on September 24, 2012, reaching only 10°C (50°F).
- Bundoran registered its coldest September night on September 30, 1991, with temperatures dropping to 0°C (32°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 Bundoran in September
For Bundoran 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.What To Do in Bundoran 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 Bundoran's climate page.
See the full Bundoran climate overview or explore weather in Ireland.
