Ocean Water Temperatures are Rising into the mid- or high 60s this month, perhaps to reach the low 70s in July or August. The usual early-summer cool weather along San Diego’s coastline, disappointing to many tourists, is mostly caused by the sluggish warming of the ocean water. The payoff will come later: as the ocean gives up heat absorbed during the sunny summer months, we’ll enjoy warm days and evenings well into autumn.
The Summer Solstice occurs at 1:50 pm on June 20. That’s when the sun will reach its highest point in the sky, rising from its leftmost position and setting at the year’s rightmost spot on the horizon. The summer solstice marks the first day of summer for the Northern Hemisphere as well as the longest day of the year. San Diegans currently enjoy approximately 14 hours of daylight, in contrast to the 10 hours we get in December. Anytime this week or next, try checking your shadow at 12:50 pm. (the local daylight time in San Diego currently equivalent to astronomical noon). The sun is then only 10° south of being directly overhead and so casts near-vertical shadows. A lesser-known consequence of the summer solstice is that our twilight periods are longer. Evening and morning twilight periods are now lasting more than 90 minutes.
June 21 Brings June’s Special Solstice Full Moon. While on June 21 will see the sun reach its highest point in the sky, June 21 will bring the moon to its lowest. Because of this year’s extreme tilted orbit, this particular full moon will be lower in the sky than we will see it for the next 18 years. If you can stay awake until around 1 am on the night of June 21-22, check out the heavenly body’s proximity to the horizon. And because the Moon is so low, it will also appear bigger than ever due to “Moon Illusion” — an optical illusion in which the moon appears larger than usual because the eye contrasts it with earthly objects such as houses, trees, etc.
Ocean Water Temperatures are Rising into the mid- or high 60s this month, perhaps to reach the low 70s in July or August. The usual early-summer cool weather along San Diego’s coastline, disappointing to many tourists, is mostly caused by the sluggish warming of the ocean water. The payoff will come later: as the ocean gives up heat absorbed during the sunny summer months, we’ll enjoy warm days and evenings well into autumn.
The Summer Solstice occurs at 1:50 pm on June 20. That’s when the sun will reach its highest point in the sky, rising from its leftmost position and setting at the year’s rightmost spot on the horizon. The summer solstice marks the first day of summer for the Northern Hemisphere as well as the longest day of the year. San Diegans currently enjoy approximately 14 hours of daylight, in contrast to the 10 hours we get in December. Anytime this week or next, try checking your shadow at 12:50 pm. (the local daylight time in San Diego currently equivalent to astronomical noon). The sun is then only 10° south of being directly overhead and so casts near-vertical shadows. A lesser-known consequence of the summer solstice is that our twilight periods are longer. Evening and morning twilight periods are now lasting more than 90 minutes.
June 21 Brings June’s Special Solstice Full Moon. While on June 21 will see the sun reach its highest point in the sky, June 21 will bring the moon to its lowest. Because of this year’s extreme tilted orbit, this particular full moon will be lower in the sky than we will see it for the next 18 years. If you can stay awake until around 1 am on the night of June 21-22, check out the heavenly body’s proximity to the horizon. And because the Moon is so low, it will also appear bigger than ever due to “Moon Illusion” — an optical illusion in which the moon appears larger than usual because the eye contrasts it with earthly objects such as houses, trees, etc.
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