westering sun; setting sun; afternoon sun
Refers to the sun shining from the west, especially in the late afternoon or evening. Often carries a nuance of strong, glaring light or heat, and is commonly used when talking about rooms or buildings that face west.
The afternoon sun was so bright that I closed the curtains.
This room gets strong westering sun, so it's very hot in summer.
In the afternoon, the westering sun shines into the room.
This balcony gets hit by the afternoon sun and is hot.
I closed the curtains to block the afternoon sun.
The afternoon sun is intense in this room, so it's hot in summer.