This depends on the season and where you are on Earth. In the northern hemisphere the sun reaches its highest point in the sky during the summer months. It starts out low in the sky in January and doesn't get any higher than 99 percent of its annual value until late July or early August when it begins to drop again for the rest of the year. In the southern hemisphere the sun reaches its highest point in the sky in March and doesn't drop below that peak until November/December. In the northern hemisphere the sun reaches its lowest point in the sky in September and doesn't rise above the horizon until May/June. In the southern hemisphere the sun reaches its lowest point in the sky in February and doesn't rise above the horizon until October/November.