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Weather extremes

How extreme does Ishigaki's weather get?

The hottest, coldest, wettest and snowiest days Ishigaki has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the New Ishigaki station 11 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 Ishigaki has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
101°F Jun 29, 1995

That is about 14°F hotter than a normal June afternoon in Ishigaki (typical high near 88°F).

The three most extreme on record

1 101°F Jun 29, 1995
2 96°F Jul 7, 2006
3 95°F Jul 31, 2009
❄️ Coldest night
46°F Jan 23, 2016

About 15°F colder than a normal January night in Ishigaki (typical low near 61°F).

The three most extreme on record

1 46°F Jan 23, 2016
2 46°F Jan 24, 2016
3 46°F Jan 25, 2016
🌧️ Most rain in one day
14.29 in Jun 8, 2020

More rain in a single day than Ishigaki usually gets in the whole month of June (typical June total about 8.0 in).

The three most extreme on record

1 14.29 in Jun 8, 2020
2 13.50 in Oct 23, 2010
3 12.67 in Oct 30, 2002

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

30°50°70°90°110°130° all-time high 101°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Ishigaki's record heat sits well above even a hot day for the season — June's 101°F is about 14°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Ishigaki's warmest days reach the low 90s°F and its coldest nights drop to the low 60s°F. But across the record it has gone as high as 101°F and as low as 46°F. A single day has delivered over 14 inches of rain. 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 Ishigakijima, about 1 km from the city centre.

How we build these numbers →