Usage of Sun Icons
This is the perfect icon to use on summer themed website or in articles about the summer. You want to tell someone to wear sunscreen? Use this icon. You want to talk about the weather? Use this icon. In fact, it's the perfect icon for weather apps, new sites, and other web related applications. It can also be used for fun in games. It would make an excellent bullet point as well.
There are many icons to choose from.
Use it on a weather website to let users know what the weather is.
Use it as a visual cue to let people know what they should do.
Use it in an article about summer as a banner or heading.
Related icons that could be useful if you are talking about the weather include the rainy cloud, the lightning cloud, and the plain cloud.