Sligo Weather in October
October in Sligo brings moderate temperatures, with daytime highs of 14°C (57°F) and nights around 8°C (46°F). Quite a bit of rainfall is expected, around 120 mm (4.7 in), so pack an umbrella.
Rainfall in Sligo in October
Typically, about 23 days will experience rainfall, with an average of 120 mm (4.7 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Sligo in October
October in Sligo brings typical temperatures with highs around 14°C (57°F) and lows of 8°C (46°F). Conditions are often most pleasant around the middle of the day. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Sligo in October
This month is characterized by fewer sunny days, with about 74 hours of sunshine. It's great for those who appreciate cooler, less sunny days.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Sligo.
Sligo Temperature in October
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Sligo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sligo - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sligo typically stay consistent throughout October, with daily highs averaging around 14°C (57°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
Average temperatures in October
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 October
Historical weather records for Sligo in October
Browse day-by-day weather records for Sligo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sligo historical weather extremes in October
According to our 49 years of weather records for Sligo, the following extremes were recorded between 1976 and 2025.
- Sligo recorded its highest October temperature of 21°C (70°F) on October 9, 2023.
- The coldest October day was on October 28, 2008, with a maximum of 5°C (41°F).
- Sligo registered its coldest October night on October 18, 1993, with temperatures dropping to -4°C (25°F).
Best Places in Ireland in October
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in October →
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 Sligo in October
Pack for changing conditions in Sligo in October. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. With limited sunshine expected, sunglasses aren't a priority for packing.
What To Do in Sligo in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports9/10
Sligo 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Sligo climate overview or explore weather in Ireland.
Popular in October
Where to go in October - average daytime high across popular destinations.
Westport
14°C (57°F) Doolin15°C (59°F) Kilkenny
14°C (57°F) Cork
15°C (59°F) Kenmare14°C (57°F) Killarney14°C (57°F) Galway15°C (59°F) Dublin15°C (59°F) 
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