Umrah can be performed at any time of the year, as there are no specific restrictions on when it can be undertaken, unlike the Hajj pilgrimage which has specific dates in the Islamic calendar. However, certain months are considered more auspicious and rewarding for performing Umrah due to their significance in Islamic tradition. Some of the recommended months for Umrah include:

Ramadan (Islamic month of fasting): Performing Umrah during the holy month of Ramadan is highly recommended. The rewards for acts of worship are believed to be multiplied during this month, and many Muslims aim to perform Umrah during this time to receive additional spiritual benefits.

Shaban: The month of Shaban, which comes before Ramadan, is also considered a good time for Umrah. The Prophet Muhammad (peace be upon him) is reported to have recommended Umrah during this month, and many Muslims choose to perform it then.

Dhu al-Qi'dah and Dhu al-Hijjah: These two months come after Ramadan and are significant because of their connection to the Hajj pilgrimage. While Hajj is performed during specific days in Dhu al-Hijjah, Umrah can be performed during these months as well.

Safar: The second Islamic month, Safar, is also considered a suitable time for Umrah. However, it's important to note that there is no specific month that is considered "bad" for performing Umrah. The decision often depends on an individual's personal circumstances, such as availability, health, and financial considerations.

Ultimately, the choice of when to perform Umrah depends on individual preferences and circumstances. It's advised to consult with religious scholars, travel agencies, or local Islamic centers for guidance and to ensure that you're well-prepared for the journey.