Summer Solstice 2024 Longest Day 2024. The summer solstice occurs for earth’s upper half when the northern hemisphere is tilted most closely toward the sun. In 2024, the summer solstice will occur on thursday 20 june at 9.51pm bst (4:50 pm edt new york, 1:50pm pdt los angeles).
Past 10 years are warmest on record. Prepare to be amazed as we unravel the mysteries of the summer solstice, a day when the sun seems.