When is the best time to travel to the United Kingdom?
No one really comes to Britain for the weather; however, the good news is that the climate is relatively mild. You’ll rarely find subfreezing temperatures or many unbearably scorching days. Rain can fall on any day of the year, especially so from November to January. Conversely, you’ll find clear sunny days at any time.
Generalizations are hard to apply according to region, as well. Scotland may be experiencing a heat wave, while southern England may be cold and cloudy. Always be prepared for rain.
Winter is cold, and daylight hours are short, so you must plan your days carefully. The castle hotels are open, but some attractions—including the historic houses—may be closed for the season. Roads in northern Wales and the north of England may close temporarily if snow falls
The tourist season lasts year round, with a peak in late spring through summer and again the week before Christmas. If you want to avoid the heaviest crush of crowds, travel in April or October. The summer months coincide with school holidays, so the most popular sites can be overwhelmed. You’ll need to book ahead and start the day early.
Most castle hotels do not have air-conditioning. You don’t need it 99% of the time, but in recent years Britain has had some serious heat waves during the summer. It’s hard to plan for, of course, but if that is a potential issue for you, contact the hotel.