Climate averages 1991–2020
Słupsk weather
in July.
A mild, wet month: the 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a mild month in Słupsk: daytime highs average 21.0°C and nights cool to about 14.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 91 mm of rain on roughly 13 days, which makes July a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 16 h 40 min on an average July day.
The nearest other city in this atlas is Koszalin (63 km away). In July its highs average 21.6°C, 0.5°C warmer than Słupsk, with 90 mm of rain.
Among the 60 cities listed in Poland, Słupsk ranks 60th of 60 for the warmest July highs and joint 36th of 60 for the driest July (rainfall, lowest first). The mean July high of those 60 cities is 23.4°C; Słupsk is 2.4°C cooler than that mean.
From July to August, average highs rise by 0.1°C to 21.1°C, and monthly rainfall falls from 91 mm to 85 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Słupsk climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.1°C-1.4°C | -1.4°C | 59 | 12.1 | 7.98 h |
| February | 2.7°C-1.4°C | -1.4°C | 47 | 11.0 | 9.710 h |
| March | 5.7°C0.2°C | 0.2°C | 51 | 10.5 | 11.812 h |
| April | 11.0°C3.6°C | 3.6°C | 36 | 8.8 | 14.014 h |
| May | 15.4°C8.1°C | 8.1°C | 56 | 10.5 | 16.016 h |
| June | 18.6°C12.1°C | 12.1°C | 68 | 11.5 | 17.117 h |
| July, selected | 21.0°C14.8°C | 14.8°C | 91 | 13.4 | 16.717 h |
| August | 21.1°C15.1°C | 15.1°C | 85 | 13.7 | 14.915 h |
| September | 17.1°C11.8°C | 11.8°C | 78 | 12.3 | 12.813 h |
| October | 12.0°C7.6°C | 7.6°C | 80 | 13.6 | 10.611 h |
| November | 6.9°C3.5°C | 3.5°C | 65 | 13.2 | 8.69 h |
| December | 3.4°C0.2°C | 0.2°C | 66 | 13.5 | 7.47 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Koszalin in JulyPoland · 63 kmHigh 21.6°C · Low 14.6°C · 90 mm rain
- Gdynia in JulyPoland · 97 kmHigh 21.9°C · Low 14.8°C · 92 mm rain
- Gdańsk in JulyPoland · 106 kmHigh 22.3°C · Low 14.8°C · 84 mm rain
- Piła in JulyPoland · 147 kmHigh 23.2°C · Low 14.7°C · 89 mm rain
- Grudziądz in JulyPoland · 157 kmHigh 23.1°C · Low 14.7°C · 85 mm rain
- Elbląg in JulyPoland · 158 kmHigh 22.1°C · Low 15.2°C · 85 mm rain
- Bydgoszcz in JulyPoland · 162 kmHigh 23.5°C · Low 14.9°C · 83 mm rain
- Fordon in JulyPoland · 164 kmHigh 23.4°C · Low 15.0°C · 85 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Słupsk) is explained once on the Słupsk year overview and on the Sources, method and limits page.