The Loo (Hindi: लू, Urdu: لو, Punjabi: ਲੂ) is a strong, hot and dry summer afternoon wind from the west which blows over the western Indo-Gangetic Plain region of North India and Pakistan. It is especially strong in the months of May and June. Due to its very high temperatures (45 °C–50 °C or 115°F-120°F), exposure to it often leads to fatal heatstrokes.
Due to the dangerous, and potentially fatal, effects of the loo on vegetation, humans and animals, it is sometimes referred to as an evil wind in popular Indo-Pakistani culture. Avoiding exposure to the Loo is strongly recommended for children and the elderly, as well as pets. Most people attempt to stay indoors as much as possible during afternoons in the Loo-affected months. Heatstrokes are commonly referred to as Loo lagna (being stricken by the Loo).
