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Cyclones in Tonga

Cyclones only occur occasionally in Tonga. On average, they happen about 2 times a year. The hardest hit regions are Vava‘u, Tongatapu and Eua.

The typical cyclone season depends on the summer monsoon. In the months before (May to June) and after (October to November), the most severe storms occur.

Tonga has certainly been affected by the foothills of several cyclones, but during the past 12 months no cyclone reached the inhabited areas on land.

Other natural hazards in Tonga:
Volcanos
Earthquake
Tsunamis
The most severe natural disasters worldwide


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21.05.2022 © CIMSS University of Wisconsin-Madison

Most violent cyclones in Tonga since 2018

Zazu: 13th to 16th December 2020

Wind speed:
max. 100 km/h
on land:
max. 94 km/h
Diameter:
max. 296 km
Air pressure:
below 985 mbar
Saffir-Simpson scale:
tropical storm
Affected regions
Vava‘u

Wasi: 20th to 23rd February 2020

Wind speed:
max. 111 km/h
Diameter:
max. 185 km
Air pressure:
below 975 mbar
Saffir-Simpson scale:
tropical storm
The cyclone did not make direct landfall. On February 23rd, 2020 at 7:00 am it had the shortest distance at about 217 km northwest of Hihifo in Niuas.

Vicky: 20th to 24th February 2020

Wind speed:
max. 78 km/h
Diameter:
max. 296 km
Air pressure:
below 990 mbar
Saffir-Simpson scale:
tropical storm
The cyclone did not make direct landfall. On February 20th, 2020 at 7:00 pm it had the shortest distance at about 292 km north of Hihifo in Niuas.

Pola: 25th February to 3rd March 2019

Wind speed:
max. 180 km/h
Diameter:
max. 204 km
Eye:
max. 37 km
Air pressure:
below 950 mbar
Saffir-Simpson scale:
category 3
The cyclone did not make direct landfall. On February 26th, 2019 at 4:00 pm it had the shortest distance at about 213 km east of Hihifo in Niuas.

Neil: 9th to 10th February 2019

Wind speed:
max. 69 km/h
Diameter:
max. 370 km
Air pressure:
below 994 mbar
Saffir-Simpson scale:
tropical storm
Affected regions
Tongatapu
Eua


These evaluations are based on data from the National Centers for Environmental Information of the National Oceanic and Atmospheric Administration (NOAA). Individual data have been summarized or translated.
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