Sligo Weather in August
During August, Sligo experiences pleasant daytime temperatures of 19°C (66°F) and cooler nights around 12°C (54°F). As part of the summer season, expect quite a bit of rainfall. Around 119 mm (4.7 in) is typical.
Rainfall in Sligo in August
Analyzing past climate data, one can expect approximately 20 days of rain, averaging 119 mm (4.7 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Sligo in August
August in Sligo brings typical temperatures with highs around 19°C (66°F) and lows of 12°C (54°F). During August, you'll experience the summer season. Conditions are often most pleasant around the middle of the day. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Sligo in August
The area enjoys a balanced 118 hours of sunlight, ensuring it's neither too overcast nor too sunny.If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Sligo.
Sligo Temperature in August
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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 August, with daily highs averaging around 19°C (66°F). Nights are cool, with lows around 11°C (52°F).
Average temperatures in August
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 August
Historical weather records for Sligo in August
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 August
Our historical data for Sligo spans 1976 to 2026, revealing these weather extremes.
- The warmest day in August was on August 2, 1995, with a maximum of 28°C (82°F).
- On August 30, 1992, Sligo saw its coldest August day with temperatures maxing out at 11°C (52°F).
- Sligo registered its coldest August night on August 24, 1986, with temperatures dropping to 3°C (37°F).
- The wettest day in August Sligo was on August 17, 1994 with 38 mm (1.5 in) of precipitation.
Best Places in Ireland in August
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in August →
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 August
Comfortable temperatures call for an easy wardrobe in August. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Sligo in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Sligo 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Sligo climate overview or explore weather in Ireland.
Popular in August
Where to go in August - average daytime high across popular destinations.
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