Waterford Weather in May
May in Waterford brings moderate temperatures around 15°C (59°F) during the day, dropping to 9°C (48°F) at night, with the driest conditions of the year.
Rainfall in Waterford in May
Enjoy minimal rain interruptions this month. The dry conditions make it a reliable choice for outdoor plans, even if it's not beach weather. You can expect rain on roughly 16 days based on historical data, averaging 68 mm (2.7 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Waterford in May
Temperatures in Waterford in May top out at 15°C (59°F) and drop to 9°C (48°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Waterford in May
The days are predominantly sunny, with an estimated total of around 213 hours of sunshine. Despite the cool temperatures, these sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Waterford.
Waterford Temperature in May
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Waterford Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Waterford - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Waterford typically stay consistent throughout May, with daily highs averaging around 15°C (59°F). Nights are cool, with lows typically ranging from 7°C (45°F) to 9°C (48°F).
Average temperatures in May
Historical weather records for Waterford in May
Browse day-by-day weather records for Waterford spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Waterford historical weather extremes in May
Based on weather observations in Waterford between 1976 and 2026, these are the recorded extremes during May.
- The warmest day in May was on May 26, 2026, with a maximum of 26°C (79°F).
- The lowest daytime temperature in May was 6°C (43°F), recorded on May 1, 1979.
- Waterford registered its coldest May night on May 4, 1979, with temperatures dropping to -1°C (30°F).
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 →
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 Waterford in May
The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Waterford in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports10/10
Waterford 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Waterford climate overview or explore weather in Ireland.
Popular in May
Where to go in May - average daytime high across popular destinations.
Galway
16°C (61°F) Kilkenny
16°C (61°F) Westport16°C (61°F) Kenmare
16°C (61°F) Killarney16°C (61°F) Dublin16°C (61°F) Cork
15°C (59°F) Doolin15°C (59°F) 
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