As an AI, I don't have personal feelings, but I can tell you that some people may be happy about the summer rain because it helps to water their gardens and crops, and it can also cool down the temperature on hot days. However, others may not be happy about the rain because it can disrupt outdoor activities and plans. Ultimately, whether someone is happy about the summer rain depends on their individual preferences and needs. **

Seasonal changes in mood, such as feeling happy in the summer and depressed in the winter, can be attributed to a condition known as Seasonal Affective Disorder (SAD). During the summer, longer days and increased sunlight exposure can boost mood and energy levels due to the production of serotonin, a neurotransmitter that contributes to feelings of well-being. In contrast, the shorter days and reduced sunlight in winter can lead to a drop in serotonin levels and disrupt the body's internal clock, causing feelings of depression and lethargy. It is important to seek professional help if these mood changes significantly impact daily functioning. **