Dungarvan Weather in September
September in Dungarvan brings moderate temperatures around 18°C (64°F) during the day, dropping to 11°C (52°F) at night, with quite a bit of rainfall expected, averaging around 77 mm (3 in) for the month.
Rainfall in Dungarvan in September
You can expect rain on around 16 days based on historical patterns, with 77 mm (3 in) average for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.
Temperature in Dungarvan in September
September in Dungarvan brings typical temperatures with highs around 18°C (64°F) and lows of 11°C (52°F). September is in the summer season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. 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 Dungarvan in September
The month brings about 128 hours of sunlight, offering a comfortable mix of sun and overcast.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Dungarvan.
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 Dungarvan's climate page.
Dungarvan Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
18°C (64°F)
Chance of Rain
55%
Precipitation
77 mm (3 in)
Rainy days
16 days
Humidity
75% *
Sunshine
128 hours *
Percentage Sunshine
33% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Dungarvan typically stay consistent throughout September, with daily highs averaging around 18°C (64°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 for Dungarvan in September
Browse day-by-day weather records for Dungarvan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Dungarvan historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Dungarvan.
- On September 2, 1991, temperatures climbed to 25°C (77°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 10°C (50°F), recorded on September 29, 1993.
- Dungarvan registered its coldest September night on September 19, 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 Dungarvan 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. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Dungarvan 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 Dungarvan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Dungarvan climate overview or explore weather in Ireland.
