Typhoon Robyn originated from a near equatorial monsoon trough in the eastern Caroline Islands in late July.

On August 7, Robyn attained its peak intensity of 160 km/h (99 mph), with a barometric pressure of 940 mbar (28 inHg).

After passing through the Ryukyu Islands, Robyn skirted past western Kyushu on August 9 while steadily weakening.

A total of 564 structures were destroyed, 80 homes were damaged, 220 houses were flooded, roads were cut in 15 locations, and two dikes were ruined.

The sixth and final tropical cyclone of July, Robyn originated from a near equatorial monsoon trough in the eastern Caroline Islands.

At 06:00 UTC on July 30, the Joint Typhoon Warning Center (JTWC) started watching the system as thunderstorm activity had persisted[2] as the disturbance tracked west-northwest.

[3] On the afternoon on July 31, a Tropical Cyclone Formation Alert was issued, following reports from Hurricane Hunters that a low-level center was forming.

[2] At 06:00 UTC on August 1, the Japan Meteorological Agency (JMA) upgraded the system into a tropical depression.

[4] Early on August 6, data from the JTWC suggested that Robyn entered a period of rapid deepening over 36 hours, ending winds of 235 km/h (145 mph).

On August 7, the JMA estimated that Robyn attained its peak intensity of 160 km/h (100 mph), with a barometric pressure of 945 mbar (27.9 inHg).

[3] Midday on August 10, both the JTWC and JMA agreed that Robyn lost typhoon intensity over the Sea of Japan.

In Nagasaki Prefecture, about 5,300 people were evacuated from their homes at the foot of the Mount Unzen volcano due to fear of landslides.

[14] A ship offshore Sasebo measured a minimum sea level pressure 969 mbar (28.6 inHg).

A total of 564 structures were destroyed,[3] 80 homes were damaged, 220 houses were flooded,[15] roads were cut in 15 locations, and 2 dikes were ruined.

[18] An Indonesian sailor from the Opo Soly was reported missing after his freighter tried to dock offshore Kagoshima Prefecture, although 13 others on board were rescued safely.

Five people, including three seniors and one child, were injured in the prefecture due to strong winds, which also resulted in 46,000 customers losing power.

[2] Taegwalli Station received 342.3 mm (13.48 in) in a 24-hour period; this total was double the amount of rainfall typically observed in August.

[2] One man was killed due to high winds in Pusan while at least three others were presumed dead across the southern portion of the country.