The Korean rainy season (장마) mostly seems to start like clockwork, right around July 1st each year. You can see it on my phone's weather forecasting app.
Or looking out the window works, too. Actually, it's been raining on and off already for the last few weeks. But the monsoon doubles down and just rains all the time.
The rainy season is probably my favorite season in Korea. Despite the sticky warm temperatures, the green dampness reminds me of my childhood on the far north coast of California, which is climatologically part of the Pacific Northwest.
[daily log: walking, 7km]