Cleggan Weather in September
September in Cleggan brings moderate temperatures around 17°C (63°F) during the day, dropping to 12°C (54°F) at night, with quite a bit of rainfall expected, averaging around 124 mm (4.9 in) for the month.
Rainfall in Cleggan in September
Typically around 21 days of rainfall are expected, averaging 124 mm (4.9 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Cleggan in September
Temperatures in Cleggan in September top out at 17°C (63°F) and drop to 12°C (54°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows of 12°C (54°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.For Cleggan itself, May, June and August generally stand out with 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.
Cleggan Temperature in September
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Cleggan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cleggan - and find the best time to visit.
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 Cleggan in September
For Cleggan 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 Cleggan in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling5/10 -
Walking5/10 -
Camping6/10 -
Outdoor sports9/10
Cleggan 3-Day Forecast
See the full Cleggan 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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