Umrah is one of the precious blessings of Allah to Muslims. Through it, an individual may achieve the countless blessings of Allah. Allah loves the one who loves to spend time with Allah. So why not get the infinite blessings of Allah through Umrah.
Spending a vacation in holy cities such as Makkah and Madinah is the greatest vacation a Muslim will ever have, it would be like a dream come true for those who are willing to go to Umrah for the first time in their lives. Umrah is just like a Mini-Hajj, which is one of the holiest practices in the religion of Islam, and many Muslims see Umrah as an obligation if they are financially and healthily willing to travel to Saudi Arabia to perform Umrah.
There's no definite month like Hajj to perform Umrah. But it will be great to perform the Umrah when the Holy Place "Haram" is less crowded. So you may perform Umrah and other precious prayers with perfect peace and enjoy the soulful sights of the Haram, Masjid and Nabvi, and many other Islamic areas.
In the winter season, almost all UK people can get holidays from their work to study for Christmas days, and the holiest thing Muslims can think about in their holidays is offering Umrah since the Christian faith will be offering festivities for the rebirth of the death of the Prophet Jesus, and that's a sacred ritual to do for them. The best thing for the British Muslims would be to go to Saudi Arabia to offer Umrah in December 2021 to refresh their souls and get them closer to Allah for His blessings and forgiveness.