2023 Pacific typhoon season

The 2023 Pacific typhoon season was the fourth and final consecutive below-average Pacific typhoon season and became the third-least active on record in terms of named storms, with only 17 developing, surpassing only the 2010 and 1998 seasons. However, the season was slightly above average in terms of accumulated cyclone energy (ACE). Despite occurring during an El Niño event, which typically favors increased activity in the basin, overall development was unusually suppressed. This was mainly attributed to a prolonged negative phase of the Pacific decadal oscillation (PDO), which generally inhibits tropical cyclone formation in the region. The season was less active than the 2023 Atlantic hurricane season in terms of named storms—the fourth such occurrence on record, after 2005, 2010, and 2020. It also recorded fewer storms than the 2023 Pacific hurricane season. Of the 17 systems, ten intensified into typhoons, and four further strengthened into super typhoons. Despite the low number of storms, the season proved highly destructive, mainly due to Typhoon Doksuri, which devastated northern Philippines, Taiwan, and China in July, becoming the costliest typhoon on record and the costliest to strike mainland China; and Typhoon Haikui in September, which caused widespread damage across China, Taiwan, and Hong Kong. Activity across Southeast Asia was notably limited, with no tropical storm making landfall in mainland Vietnam, the third such occurrence since the country's independence, following the 1976 and 2002 seasons.

The season ran throughout the year, though most tropical cyclones typically develop between May and October. The season's first named storm, Sanvu, formed on April 21, while its last named storm, Jelawat, dissipated on December 20. In May, Typhoon Mawar intensified into the first typhoon of the season on May 21, later becoming one of the strongest Northern Hemisphere tropical cyclones on record in May.

The scope of this article is limited to the Pacific Ocean north of the equator between 100°E and the 180th meridian. Within the northwestern Pacific Ocean, two separate agencies assign names to tropical cyclones, which can result in a system having two names. The Japan Meteorological Agency (JMA) names a tropical cyclone when it is estimated to have 10-minute sustained winds of at least 65 km/h (40 mph) anywhere in the basin. The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) assigns names to tropical cyclones that move into or form as a tropical depression within the Philippine Area of Responsibility (PAR), defined as the area between 135°E and 115°E and between 5°N and 25°N, regardless of whether the JMA has already named the system. Tropical depressions monitored by the United States Joint Typhoon Warning Center (JTWC) are given a numerical designation with a "W" suffix, which means "west", a reference to the western Pacific region.