The hottest, coldest, wettest and snowiest days Gdynia has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 23 years of daily weather observations (2002–present), from the Oksywie station 5 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 Gdynia
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
93°FJul 22, 2010
The three most extreme on record
193°FJul 22, 2010
293°FJul 17, 2007
393°FJun 30, 2019
❄️Coldest night
-5°FJan 7, 2003
The three most extreme on record
1-5°FJan 7, 2003
2-4°FFeb 6, 2012
3-3°FFeb 5, 2012
🌧️Most rain in one day
6.71 inJun 27, 2009
The three most extreme on record
16.71 inJun 27, 2009
25.51 inJul 3, 2002
34.43 inJul 29, 2025
In plain terms
Across the record, Gdynia has reached as high as 93°F and as low as −5°F. A single day has delivered over 7 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 — 1991–2020 normals computed from 30 years of daily observations at Hel, a weather station, about 20 km from the city centre. The underlying daily records come from NOAA's global station network.