Thoitiet. io is a Vietnamese weather information website designed to help people monitor conditions and plan their daily activities. It provides current and forecast weather for locations across Vietnam, with coverage organized by region and province or city.

Visitors can check local conditions such as temperature, expected highs and lows, rainfall, humidity, visibility, wind speed, and sunrise and sunset times. The site also offers multi-day forecasts and a national overview that lets users compare weather across destinations. Additional resources include a weather map, a calendar, and sections covering weather news, storms, and general meteorological knowledge.

Thoitiet. io publishes climate articles about places in Vietnam and other countries, describing regional conditions and seasonal patterns. The website also highlights forecast tools, including a widget, and provides location-based pages such as its forecast for Hanoi.

By bringing together local forecasts, broader weather updates, and educational articles, Thoitiet. io serves as a practical reference for people seeking weather information in Vietnam