Climate-Zone.com

HomeCitiesJapanSagaTools › Weather extremes

Weather extremes

How extreme does Saga's weather get?

The hottest, coldest, wettest and snowiest days Saga 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 Saga 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 Saga has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F Jul 16, 1994

That is about 14°F hotter than a normal July afternoon in Saga (typical high near 89°F).

The three most extreme on record

1 103°F Jul 16, 1994
2 103°F Jul 17, 1994
3 102°F Jul 18, 1994
❄️ Coldest night
20°F Jan 25, 2016

About 14°F colder than a normal January night in Saga (typical low near 34°F).

The three most extreme on record

1 20°F Jan 25, 2016
2 21°F Jan 24, 2016
3 23°F Jan 23, 2004
🌧️ Most rain in one day
13.23 in Aug 13, 2021

More rain in a single day than Saga usually gets in the whole month of August (typical August total about 9.5 in).

The three most extreme on record

1 13.23 in Aug 13, 2021recent
2 10.57 in Jul 14, 2012
3 9.61 in Aug 14, 2021

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.

10°30°50°70°90°110°130° all-time high 103°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Saga's record heat sits well above even a hot day for the season — July's 103°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, Saga's warmest days reach the low 90s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 103°F and as low as 20°F. A single day has delivered over 13 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 Saga, about 4 km from the city centre.

How we build these numbers →