How extreme does Bydgoszcz's weather get?

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

Based on 20 years of daily weather observations (2005–present), from the Szwederowo station 3 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 Bydgoszcz has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

99°F Jul 22, 2010

The three most extreme on record

1 99°F Jul 22, 2010

2 99°F Aug 8, 2015

3 99°F Jun 26, 2019

❄️ Coldest night

-20°F Jan 23, 2006

The three most extreme on record

1 -20°F Jan 23, 2006

2 -18°F Jan 24, 2006

3 -16°F Jan 22, 2006

In plain terms

Across the record, Bydgoszcz has reached as high as 99°F and as low as −20°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 — 1991–2020 normals computed from 30 years of daily observations at Torun, a weather station, about 39 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

← Bydgoszcz city detail