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Llandudno Weather in May
May in Llandudno brings moderate temperatures, with daytime highs of 15°C (59°F) and nights around 8°C (46°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.
Rainfall in Llandudno in May
This is the driest month, making it a great choice for planning outdoor excursions. Typically around 16 days of rainfall are expected, averaging 75 mm (3 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Llandudno in May
In May, Llandudno gets moderate temperatures, with highs of 15°C (59°F). Nights cool to around 8°C (46°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Llandudno in May
With about 169 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.For Llandudno itself, July 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.
Llandudno Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
15°C (59°F)
Chance of Rain
53%
Precipitation
75 mm (3 in)
Rainy days
16 days
Sunshine
169 hours *
Percentage Sunshine
*
* Data from: Bala, the United Kingdom (48 KM, 30 Miles).
Llandudno Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Llandudno - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Llandudno typically stay consistent throughout May, with daily highs averaging around 15°C (59°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 records for Llandudno in May
Browse day-by-day weather records for Llandudno spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Llandudno historical weather extremes in May
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Llandudno.
- On May 25, 2026, temperatures climbed to 28°C (82°F), marking the warmest May day on record.
- The coldest May day was on May 6, 1997, with a maximum of 7°C (45°F).
- The lowest overnight temperature recorded in May was 0°C (32°F) (May 14, 2020).
- Peak precipitation in May occurred on May 20, 2003, when 35 mm (1.4 in) of precipitation was measured.
Best Places in the United Kingdom in May
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in May →
perfect weather
pleasant
tolerable
unpleasant
poor
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 Llandudno in May
The weather can swing between comfortable and chilly in May, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Llandudno in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports9/10
Llandudno 3-Day Forecast
More climate data for Llandudno
See the full Llandudno climate overview or explore weather in the United Kingdom.
Popular in May
Where to go in May - average daytime high across popular destinations.
London
18°C (64°F) Bath17°C (63°F) Manchester
17°C (63°F) York17°C (63°F) Torquay15°C (59°F) Glasgow15°C (59°F) Edinburgh15°C (59°F) Blackpool14°C (57°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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