Portlaoise Weather in September
September in Portlaoise brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 72 mm (2.8 in), so pack an umbrella.
Rainfall in Portlaoise in September
Historically, September sees about 17 days of rain, with a monthly average of 72 mm (2.8 in). Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Portlaoise in September
September in Portlaoise sees highs of 18°C (64°F) and lows of 10°C (50°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Portlaoise.
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 Portlaoise's climate page.
Portlaoise Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
18°C (64°F)
Chance of Rain
55%
Precipitation
72 mm (2.8 in)
Rainy days
17 days
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
pleasant
tolerable
unpleasant
poor
What to Wear in Portlaoise 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.What To Do in Portlaoise 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 Portlaoise's climate page.
See the full Portlaoise climate overview or explore weather in Ireland.
