Derry Weather in August
Derry in August sees pleasant daytime temperatures of 19°C (66°F) and nighttime lows of 12°C (54°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.
Rainfall in Derry in August
The month brings the most rain, so be prepared with an umbrella for the occasional shower. Expect around 20 days of rain based on historical data, with 107 mm (4.2 in) average. 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 Derry in August
In August, Derry gets pleasant temperatures, with highs of 19°C (66°F). Nights cool to around 12°C (54°F). The month of August belongs to 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 Derry in August
The area enjoys a balanced 140 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 Derry.
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 Derry's climate page.
Derry Temperature in August
Min Temperature
12°C (54°F)
Max Temperature
19°C (66°F)
Chance of Rain
67%
Precipitation
107 mm (4.2 in)
Rainy days
20 days
Sunshine
140 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Derry typically stay consistent throughout August, with daily highs averaging around 19°C (66°F). Nights are cool, with lows around 12°C (54°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 for Derry in August
Browse day-by-day weather records for Derry spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Derry historical weather extremes in August
Our historical data for Derry spans 1976 to 2025, revealing these weather extremes.
- The hottest August day on record in Derry reached 27°C (81°F) (August 17, 1976).
- The lowest daytime temperature in August was 12°C (54°F), recorded on August 30, 1992.
- Nighttime temperatures dropped to 5°C (41°F) on August 24, 2014, marking the coldest August night on record.
- Peak precipitation in August occurred on August 18, 1981, when 55 mm (2.2 in) of precipitation was measured.
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
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tolerable
unpleasant
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What to Wear in Derry 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 Derry in August
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 Derry's climate page.
See the full Derry climate overview or explore weather in Ireland.
