Foc-Foc on the volcanic island of La Réunion (Indian Ocean) received 1,144 mm of rain in 12 hours on 7–8 January 1966 during Tropical Cyclone Denise — the WMO record for this duration. Réunion's steep terrain repeatedly forces moist cyclone air upward, producing several world rainfall records.
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Foc-Foc on the volcanic island of La Réunion (Indian Ocean) received 1,144 mm of rain in 12 hours on 7–8 January 1966 during Tropical Cyclone Denise — the WMO record for this duration. Réunion's steep terrain repeatedly forces moist cyclone air upward, producing several world rainfall records.
The greatest rainfall depth recorded at a single location within a 12-hour period, as listed in the WMO archive.
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Limits Registry. LR-MOST-RAIN-12-HOURS. Most rainfall in 12 hours. 2026.