During the year,a total of 142 systems formed, with 100 of these developing further and being named by the responsible warning centre.

The strongest tropical cyclone of the year was Typhoon Halong, with a minimum barometric pressure of 905 hPa (26.72 inHg).

The costliest tropical cyclone of the year was Typhoon Hagibis, which caused more than $15 billion in damage after striking Japan.

Activity across the southern hemisphere's three basins – South-West Indian, Australian, and South Pacific – was fairly significant, with the regions recording 25 named storms altogether, with the most intense Southern Hemisphere cyclone of the year, Cyclone Ambali from the Southwest Indian Ocean basin peaking with a central pressure of 930 hPa (27.46 inHg).

The accumulated cyclone energy (ACE) index for the 2019 (seven basins combined), as calculated by Colorado State University (CSU) was 854.8 units.

[6] The North Atlantic Ocean experienced their fourth-most active season on record, tied with 1969, at 18 named storms.

Most of the storms were weak and short-lived, possibly because of moderately high wind shear that persisted throughout the season.

The accumulated cyclone energy (ACE) index value for the individual basin is 132 units, which is only dubbed "above normal", despite the high count of named storms of 18.

The Eastern portions of the Pacific Ocean was only moderately active, likely because of a weakening El Niño trend that started in late July.

The accumulated cyclone energy (ACE) index of this season amounted to 269 units, which is considered "near normal".

In late September, Deep Depression ARB 02 formed near Gujarat and intensified into the fourth cyclonic storm of the season, Hikaa.

Soon afterward, on November 6, the remnants of Severe Tropical Storm Matmo crossed the Southeast Asia overland and again consolidated into a depression.

Five more intense tropical cyclones formed during February and March: Funani, Gelena, Haleh, Idai, and Joaninha.

It was also the third season in a row to begin prior to the official commencement date of November 1, in this instance with the development of Tropical Low Liua on September 26, 2018.

The three strongest storms of the season—Veronica, Trevor and Savannah—all developed in March 2019, and together affected all three of the Bureau of Meteorology's Australian sub-regions as severe tropical cyclones.

It persisted for two weeks and reached category 3 on the Australian tropical cyclone scale before dissipating west of Australia.

Later that month, a tropical low formed and lasted for a week before dissipating in late January without been named.

Sarai formed on December 23, lasting into the new year before finally ceasing to exist on January 2.

Not too long after that, Tino formed and affected eastern Fiji and the surrounding area before dissipating.

In early February, another low originally in the Australian region crossed the 160th meridian east and emerged in the South Pacific.

[20] Idai was also the costliest cyclone in the South-West Indian Ocean basin, inflicting more than $2 billion (USD) in damages.

Four of these tropical cyclones reached the required intensity threshold to receive official names.

Cyclone Lili developed at the beginning of the Australian region off-season, and struck East Timor and Indonesia's Maluku Islands, with rainfall-induced flooding causing minor damage to infrastructure and residential property.

The formation of the short-lived Subtropical Storm Andrea to the southwest of Bermuda began the Atlantic hurricane season early for the fifth year in a row.

June was an inactive month in terms of the number of tropical cyclones formed, with only four systems occurring in total.

Named Vayu, the system intensified into a high-end very severe cyclonic storm on the Indian scale, equivalent to a minimal Category 3 major hurricane on the SSHWS.

The month of September was the most active of the year with twenty-five tropical cyclones forming, with seventeen being named.

Severe Tropical Storm (later Typhoon) Tapah (Nimfa) worsened the flooding situation in the Philippines.

However, Typhoon Halong became the strongest storm of the year, peaking with a minimum central pressure of 905 millibars.Typhoon Nakri, far earlier in the month, and Typhoon Kammuri, near the end of the month, both lashed parts of the Philippines with heavy rainfall and strong wind, killing 34 people in the country in total.

Adding to the season, Cyclone Belna formed and made a destructive landfall in northwestern Madagascar, killing 9 people.