Dundalk Weather in July
Dundalk in July sees pleasant temperatures, with highs around 20°C (68°F) and overnight lows of 12°C (54°F). Rainfall is fairly high at around 84 mm (3.3 in) on average, so pack waterproofs just in case.
Rainfall in Dundalk in July
You can expect rain on around 15 days based on historical patterns, with 84 mm (3.3 in) average for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Dundalk in July
July tends to be one of the perfect months in Dundalk, with 20°C (68°F) in the afternoon and 12°C (54°F) overnight. The summer season takes place during July. The difference between afternoon and evening temperatures is usually noticeable. 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. On average, it has the peak temperatures of the year.
Sunshine in Dundalk in July
The city usually sees around 166 hours of sunlight, indicating a moderately sunny period.If you're a fan of comfortable temperatures and drier conditions, July is a great time to visit.
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 Dundalk's climate page.
Dundalk Temperature in July
Min Temperature
12°C (54°F)
Max Temperature
20°C (68°F)
Chance of Rain
51%
Precipitation
84 mm (3.3 in)
Rainy days
15 days
Humidity
69% *
Sunshine
166 hours *
Percentage Sunshine
32% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Dundalk typically stay consistent throughout July, with daily highs averaging around 20°C (68°F). Nights are cool, with lows around 12°C (54°F).
Average temperatures in July
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 July
Historical weather for Dundalk in July
Browse day-by-day weather records for Dundalk spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Dundalk historical weather extremes in July
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Dundalk.
- On July 19, 1989, temperatures climbed to 27°C (81°F), marking the warmest July day on record.
- The lowest daytime temperature in July was 10°C (50°F), recorded on July 1, 1997.
- Nighttime temperatures dropped to 6°C (43°F) on July 9, 2015, marking the coldest July night on record.
- The heaviest July precipitation occurred on July 21, 2025, when 42 mm (1.7 in) of precipitation fell.
Best Places in Ireland in July
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in July →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Dundalk in July
Comfortable temperatures call for an easy wardrobe in July. 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Dundalk in July
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 Dundalk's climate page.
Temperature Rainfall Sunshine Humidity
See the full Dundalk climate overview or explore weather in Ireland.
