Outdoor luminaire for a streetlight

An outdoor luminaire for a streetlight, comprising:

• an outer housing;
• a light source arranged within the outer housing;
• an antenna system for transmitting and/or receiving wireless signals;
• and
• a wireless communications module within the outer housing communicatively coupled to the antenna system and configured to control the transmission of transmitted wireless signals by the antenna system and/or process receiving wireless signals received at the antenna system,
• wherein:
• the antenna system comprises at least one antenna housed within an antenna enclosure which allows the passage of the wireless signals;
• the outer housing comprises a recessed portion having a recess opening in the outer housing at the back of the recessed portion, and the front of the recessed portion comprises a front opening;
• and
• the antenna enclosure sits within or behind the recess opening, such that the antenna enclosure is set back from the front opening all around the antenna enclosure.