Buncrana Weather in September
September in Buncrana averages 17°C (63°F) during the day and 11°C (52°F) at night. Quite a bit of rainfall is typical this month, with around 92 mm (3.6 in) on average. An umbrella is a good idea.
Rainfall in Buncrana in September
Typically, you can expect about 21 days of rain this month, with 92 mm (3.6 in) on average. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.
Temperature in Buncrana in September
September in Buncrana brings typical temperatures with highs around 17°C (63°F) and lows of 11°C (52°F). During September, you'll experience the summer season. Conditions are often most pleasant around the middle of the day. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Buncrana in September
With about 118 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Buncrana Temperature in September
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Buncrana Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Buncrana - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Buncrana typically stay consistent throughout September, with daily highs averaging around 17°C (63°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 12°C (54°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 records for Buncrana in September
Browse day-by-day weather records for Buncrana spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Buncrana historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Buncrana.
- On September 7, 2023, temperatures climbed to 27°C (81°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 10°C (50°F), recorded on September 29, 1988.
- Buncrana registered its coldest September night on September 27, 2020, with temperatures dropping to 3°C (37°F).
- Peak precipitation in September occurred on September 6, 2010, when 35 mm (1.4 in) of precipitation was measured.
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 is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Buncrana in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Buncrana in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling6/10 -
Walking6/10 -
Camping8/10 -
Outdoor sports9/10
Buncrana 3-Day Forecast
See the full Buncrana climate overview or explore weather in Ireland.
Popular in September
Where to go in September - average daytime high across popular destinations.
Westport
17°C (63°F) Doolin17°C (63°F) Kilkenny
18°C (64°F) Cork18°C (64°F) Kenmare18°C (64°F) Killarney17°C (63°F) Galway18°C (64°F) Dublin18°C (64°F) 
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