Caernarfon

Spring (Mar–May): Mild, increasingly sunny days and cool nights. Quieter than summer but lively at Easter and bank-holiday weekends with local markets and heritage events—good for walks and gardens. Summer (Jun–Aug): Warmest, though showers are possible. Peak tourist season: Caernarfon Castle, waterfront and boat trips are busiest and many outdoor festivals, concerts and food markets run—book ahead. Autumn (Sep–Nov): Crisp, often clear days and colourful countryside. Visitor numbers drop after September—ideal for hiking, photography and autumn/harvest celebrations. Easier parking and lower prices. Winter (Dec–Feb): Cold, wet and windy at times; quietest period. Festive Christmas markets and town celebrations bring occasional buzz. Best for cosy pubs, off-season bargains and dramatic coastal/storm watching.