Cong Weather in May
May in Cong brings moderate temperatures, with highs of 16°C (61°F) and nights dropping to 8°C (46°F). Rainfall is on the higher side this month, averaging around 99 mm (3.9 in), so keep a rain jacket handy.
Rainfall in Cong in May
You can typically expect 18 days of rain this month, averaging around 99 mm (3.9 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Cong in May
Daytime temperatures in Cong reach 16°C (61°F) in May, dropping to 8°C (46°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Cong in May
With about 157 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.For Cong itself, September generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Cong's climate page.
Cong Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
16°C (61°F)
Chance of Rain
61%
Precipitation
99 mm (3.9 in)
Rainy days
18 days
Humidity
73% *
Sunshine
157 hours *
Percentage Sunshine
39% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cong typically stay consistent throughout May, with daily highs averaging around 16°C (61°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
Average temperatures in May
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 May
Historical weather for Cong in May
Browse day-by-day weather records for Cong spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cong historical weather extremes in May
According to our 50 years of weather records for Cong, the following extremes were recorded between 1976 and 2026.
- On May 26, 2026, temperatures climbed to 26°C (79°F), marking the warmest May day on record.
- Cong experienced its chilliest May day on May 1, 1996, reaching only 5°C (41°F).
- The lowest overnight temperature recorded in May was -2°C (28°F) (May 14, 1977).
- The wettest day in May Cong was on May 25, 2005 with 38 mm (1.5 in) of precipitation.
Best Places in Ireland in May
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in May →
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What to Wear in Cong in May
Pack for changing conditions in Cong in May. 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Cong in May
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 Cong's climate page.
Temperature Rainfall Sunshine Humidity
See the full Cong climate overview or explore weather in Ireland.
