The measures came into force on Thursday, November 5, and last until December 2.
It means that shops and businesses have had to shut once again, however this time non-essential retail can remain open for online delivery and click-and-collect.
Other Lockdown news: These trusted businesses are offering online shopping during lockdown | Full list of businesses which will be allowed to open in Portsmouth during coronavirus lockdown
We sent one of The News’ photographers down to Commercial Road to see which businesses have remained open.
Click through the gallery below to see what is open in the Portsmouth city centre during lockdown – and any restrictions in place.
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5. Holland & Barrett
Holland & Barrett in Commercial Road, Portsmouth is open during the lockdown. Picture: Sarah Standing (051120-7694) Photo: Sarah Standing
6. Nationwide
Nationwide in Commercial Road, Portsmouth is open but with reduced hours and only on Thursdays, Fridays and Saturdays. Picture: Sarah Standing (051120-7699) Photo: Sarah Standing
7. Halifax
Halifax in Commercial Road, Portsmouth is open during lockdown but with the reduced hours of 9.30am to 3.30pm. Picture: Sarah Standing (051120-7697) Photo: Sarah Standing
8. Lloyds Bank
Lloyds Bank in Commercial Road, Portsmouth is open during the lockdown with the reduced hours of 9.30am to 3.30pm. Picture: Sarah Standing (051120-7721) Photo: Sarah Standing