How often are METAR reports typically issued?

METAR reports are typically issued once an hour. This regular reporting schedule ensures that pilots and aviation professionals have current and reliable weather information necessary for flight operations. The METAR format provides detailed observations including temperature, wind, visibility, and significant weather events, which are crucial for pre-flight planning and in-flight decisions.

In some cases, airports may issue special METARs known as SPECI when significant changes in weather occur, but the standard hourly issuance remains a consistent source of data for situational awareness in aviation. This systematic update aligns with the requirements of the aviation community for both safety and operational efficiency.