When you are in the mood to hit the greens, making sure to hit the course early, and to get in the most rounds you can get in, is what all golfers love to do. So, no matter what time of day it is, you are going ot find that playing out on the course will be just as enjoyable to the golfing enthusiast, no matter what the weather is like, or how hot or humid the day is. But, depending on where you live, and what the weather is like in your city, the time of day you do go out, might offer better playing conditions.
So, if you live in the hotter cities, you may want to make it an extremely early start, or a later afternoon start, just so you can find the cooler weather, meaning you can stay out on the greens, and play more rounds, without the exhaustion you would otherwise find. If you live in a more mild climate, the mid afternoon may be the best time to go out on the course, so that the weather is not too cool or to warm, but will offer the perfect conditions for your playing game.