7-Day Forecast for Llandudno
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Live forecast from Open-Meteo, refreshed through the day. For severe weather warnings, always check the Met Office warnings page.
What Llandudno's Weather Is Really Like
Llandudno has a mild, maritime climate. The sea keeps winters gentle and summers comfortable rather than hot, so you rarely see extremes in either direction. Frost and snow are uncommon down on the promenade, even in midwinter, and summer days usually sit in the high teens, with the odd warm spell pushing into the twenties.
The town is also drier than many visitors expect from Wales. The mountains of Eryri (Snowdonia) to the south and west catch a lot of the rain carried in on westerly weather, so the coast between Llandudno and Rhyl often stays brighter while the hills are under cloud. It still rains, of course, but a wet forecast for Wales does not always mean a wet day in Llandudno.
The bigger factor is usually the wind. The promenade faces straight out to sea, and a brisk northerly can make the North Shore feel several degrees colder than the thermometer says. The good news is that Llandudno has two beaches facing different ways. When the wind is coming off the sea onto the North Shore, the West Shore is often sheltered, and the other way round.
Average Weather Month by Month
| Month | Average high | Average low | Rainfall |
|---|---|---|---|
| January | 8°C | 3°C | 71 mm |
| February | 8°C | 3°C | 56 mm |
| March | 10°C | 4°C | 46 mm |
| April | 12°C | 5°C | 46 mm |
| May | 16°C | 8°C | 48 mm |
| June | 18°C | 11°C | 53 mm |
| July | 19°C | 12°C | 56 mm |
| August | 19°C | 12°C | 64 mm |
| September | 17°C | 10°C | 64 mm |
| October | 14°C | 8°C | 84 mm |
| November | 11°C | 5°C | 84 mm |
| December | 8°C | 3°C | 89 mm |
Long-term averages for 1991 to 2020 from Rhyl, the nearest station on this stretch of coast with a full record. Llandudno's figures are very similar.
The pattern is easy to read. Spring, from March to May, is the driest part of the year, which makes it a great time for walking the Great Orme. July and August are the warmest months. Rainfall builds through the autumn and peaks from October to December, though even then you get plenty of crisp, bright days that are perfect for a blustery walk along the prom.
Season by Season
Spring (March to May)
Lengthening days, the driest weather of the year and the town waking up for the season. The Great Orme Tramway and cable car reopen around Easter, and May brings the Victorian Extravaganza. Pack a warm layer, as sea breezes stay cool well into May.
Summer (June to August)
Warm rather than hot, with long evenings that stay light until after 9.30pm around midsummer. Ideal for the beaches, the pier and evenings on the promenade. Sun cream is a must on the Orme, where there is very little shade.
Autumn (September to November)
September is often one of the nicest months of the year, with the sea at its warmest and the summer crowds gone. October and November turn wetter and windier, which is when Llandudno's rainy day options come into their own.
Winter (December to February)
Mild for the time of year, with snow rare on the coast even when the mountains are white. Some attractions close or shorten their hours, but the town is lovely at Christmas, and winter parking on the promenade is cheaper. See our best time to visit guide for more.
Sea Temperatures and Tides
The Irish Sea is coldest in late winter and early spring, when it is typically around 7 to 8°C, and warmest in late August and September, when it usually reaches roughly 15 to 16°C. That is bracing even at its best, so most people paddle rather than swim. See our swimming guide for safe places to take a dip.
Llandudno has a large tidal range, and the sands at the West Shore in particular stretch a very long way out at low tide. The tide comes back in quickly across the flat sands, so check the tide times before walking out, and keep an eye on the water. The Admiralty EasyTide service gives free official tide predictions for Llandudno.
Weather on the Great Orme
The summit of the Great Orme is 207 metres above the sea, and it can feel like a different climate from the promenade. Expect it to be cooler and noticeably windier, and cloud can roll in quickly even on a fine day. The cable car cannot run in high winds, so on breezy days the tramway is the more reliable way up. Take a windproof layer, wear proper footwear on the paths, and avoid the cliff edges in strong winds.
What to pack: a windproof jacket whatever the season, layers rather than one heavy coat, comfortable shoes for the Orme, sun cream from April to September, and a small umbrella for the town.
Frequently Asked Questions
Does it rain a lot in Llandudno?
Less than many people expect. Llandudno sits in the rain shadow of the Eryri mountains, so it is drier than much of Wales. Spring is the driest season, and the wettest months are October to December.
What is the warmest month in Llandudno?
July and August are the warmest months, with average highs of around 19°C. Warm spells can push temperatures into the mid twenties.
Does it snow in Llandudno?
Snow is rare on the coast. The sea keeps winters mild, so even when the mountains of Eryri are white, the promenade usually stays clear.
What is the best month to visit Llandudno for good weather?
May, June and September usually offer the best balance of dry, bright weather and smaller crowds. July and August are warmest but busiest.