First Day Of Summer 2024 Timeline. When is the first day of summer? The first day of astronomical summer in the us is the same as in the uk, as both nations are in the northern.
The summer solstice is the time when the sun reaches its highest and northernmost points in the sky, according to the farmer’s almanac, marking the first day of. On that day, the autumnal equinox will occur, marking the beginning of fall.
