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Weather extremes
How extreme does Amakusa's weather get?
The hottest, coldest, wettest and snowiest days Amakusa has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.
Based on 21 years of daily weather observations (2004–present), from the Amakusa station 4 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Amakusa has recorded — each shown against what a normal day that time of year looks like.
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Hottest day
97°F
Aug 20, 2013
The three most extreme on record
1
97°F
Aug 20, 2013
2
97°F
Aug 11, 2016
3
97°F
Aug 14, 2018
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Coldest night
25°F
Jan 24, 2016
The three most extreme on record
1
25°F
Jan 24, 2016
2
27°F
Feb 2, 2012
3
27°F
Jan 23, 2016
In plain terms
Across the record, Amakusa has reached as high as 97°F and as low as 25°F. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Hondo, about 2 km from the city centre.