An extreme rainfall event struck South Korea between August 3 and 4, 2025, triggering severe flooding across the southern regions of the country. Over 280 mm (11 inches) of rainfall was recorded in Muan in just 24 hours, with the hourly rainfall rates reaching over extreme 140 mm (6 inches) on August 4.
Hong Kong recorded its heaviest August daily rainfall since records began in 1884, with 355–359 mm (14–14.1 inches) measured by mid‑afternoon on August 5, 2025, prompting a black rainstorm warning that lasted more than 11 hours, the second‑longest on record.
A violent cloudburst struck Dharali village in Uttarkashi district, Uttarakhand, India, at approximately 13:45 local time on August 5, 2025, triggering major mudslide that killed at least 4 people and left more than 50 missing. The slide destroyed homes, hotels, and infrastructure along the Kheer Gad catchment, prompting large-scale rescue operations by military and disaster response teams.
Torrential rainfall totaling nearly 2 900 mm (114 inches) since July 28 2025 caused severe flooding and landslides across southern Taiwan, killing at least four people, leaving three missing, and forcing nearly 6 000 evacuations.
Storm Floris struck the United Kingdom on August 4, 2025, undergoing explosive cyclogenesis and producing widespread wind damage, power outages, and travel disruption. The system reached bomb cyclone status after its central pressure dropped 24 hPa in 24 hours, with peak gusts of 129 km/h (80 mph) recorded around Moray Firth and 106 km/h (66 mph) at Orlock Head — tying Northern Ireland’s August wind record set in 1989.
A tornado struck Ulan Hada Volcanic Geological Park in Chahar Right Back Banner, Ulanqab City, Inner Mongolia, China, on August 4, 2025. Some vehicles have sustained damages.
Tropical Storm Dexter formed northwest of Bermuda on August 4, 2025, as the fourth named Storm of the 2025 Atlantic hurricane season.
A massive dust storm swept across the Ica Valley, southern Peru, on July 31, 2025, with experts describing it as unprecedented in the region. The phenomenon reduced visibility to near zero, disrupted transport, and was driven by an unusual convergence of high‑ and low‑pressure systems.
Up to 50 cm (20 inches) of snow fell across elevated areas of New South Wales’ Northern Tablelands on Saturday, August 2, 2025, as a rare winter storm disrupted transport and triggered widespread emergency response. Around 200 vehicles were stranded due to the severe weather, with the State Emergency Services responding to 745 weather related incidents in just 24 hours.
Tropical Storm Gil strengthened into a hurricane over the eastern Pacific Ocean at 03:00 UTC on August 2, 2025 (17:00 HST on August 1), according to the National Hurricane Center. It is now the fourth hurricane of the 20205 eastern Pacific hurricane season.
