Get a good OS map, let people know where you are going and when you should be back and ask locally for advice. Many times the mountain rescue in the area will have more info. Looks like hiking poles and stout footwear is a good idea.
Long long time ago (30+yrs) I got half way up and had to get back with cloud cover dropping so with honesty I cant say anything much about it. You have done Croagh Patrick so Errigal shouldn't be a problem.
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Two rules for Ireland, Take your time & bring a sense of humour
Errigal Hostel used to take hikers up in short trips. The guy who runs them is a cancer survivor who is a bit of a local celebrity for his dedication to the area.
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May the light be your guide and the darkness be your comfort!
From the description in the Irish Times link that Michele posted, the walk up and back from the car park sounds pretty moderate. Should be NO problem for you after Croagh Patrick!
We had Gale Force 7 winds the day we attempted Patrick's climb and gave up after reaching the fence line. A family coming down said their large 10 Year-old was nearly blown off the ridgeline!
With a week to work it in, you SHOULD have at least ONE fair-weather day . . .
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Bob
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