Quito has a subtropical highland climate. The city has a fairly constant cool climate due to its elevation and proximity to the equator. The average temperature during the day is 66°F (19°C), which generally falls to an average of slightly below 50°F (10°C) at night. The average temperature annually is 64°F (18°C). There are only really two obvious seasons in the city: dry and wet. The dry season (summer) runs from June to September, and the wet season (winter) is from October to May.