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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the BritView weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
For the latest BBC Weather forecast for St Asaph, refer to the live forecast above. This historic cathedral city in Denbighshire, North Wales, typically enjoys a temperate maritime climate, with mild winters and cool summers, though rainfall is common year-round due to its proximity to the coast.
What’s the weather like in St Asaph today?
The live forecast above gives you the most up‑to‑date conditions for St Asaph. On a typical day, you can expect a mix of cloud and occasional rain, with temperatures rarely straying far from the seasonal average. As St Asaph sits on the River Elwy, morning mist can sometimes linger, especially in autumn and winter.
Seasonal weather patterns for St Asaph
Summer highs usually reach the low 20s °C, while winter lows hover around 2–4 °C. Spring and autumn see plenty of changeable weather, so it’s wise to check the forecast before heading out. If you’re planning a visit, the driest months are often May and June, but even then keep a waterproof handy.
Is St Asaph prone to flooding?
The River Elwy runs through the city, and heavy rain can cause localised flooding in low‑lying areas. Check the GOV.UK flood warnings for the latest updates.
What’s the best time to visit St Asaph?
Late spring (May–June) offers the most settled weather, with longer days and lower rainfall. Autumn also has charm, but expect more cloud and showers.
How accurate are BBC Weather forecasts for St Asaph?
BBC Weather uses Met Office data, so forecasts are reliable for the next 24–48 hours. For longer‑range outlooks, check our 10‑day forecast page.
Sources
For more UK weather updates, visit our UK weather hub or check conditions in nearby Liverpool and Birmingham.