Monthly climate guide
Poznań weather in August
Expect warm weather in Poznań in August: afternoons reach about 26°C (78°F), while nights drop to around 15°C (58°F). Around 51 mm of rain falls over the month (some rain), and skies are often cloudy. Daytime highs are about the same as July and 5°C warmer than September.
What stands out in August
- Temperatures are falling — expect highs around 5°C lower by September.
- In Poznań, August is late summer.
- It's one of the sunniest months here, with cloud cover around 62%.
- Poznań is usually about 2°C warmer than Karpacz, 200 km away, in August.
August is typically Poznań's warmest month.
Avg high
26°C
78°F
Avg low
15°C
58°F
Rainfall
51 mm
some rain
Humidity
65%
relative
Sky
62%
cloud · often cloudy
Poznań weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 1°C / 34°F | -4°C / 25°F | 49 mm | 92% | 83% |
| February | 3°C / 38°F | -3°C / 26°F | 36 mm | 89% | 76% |
| March | 9°C / 47°F | -1°C / 31°F | 36 mm | 81% | 66% |
| April | 15°C / 59°F | 4°C / 39°F | 29 mm | 73% | 60% |
| May | 19°C / 67°F | 8°C / 47°F | 55 mm | 70% | 62% |
| June | 23°C / 74°F | 13°C / 55°F | 69 mm | 68% | 63% |
| July | 25°C / 77°F | 15°C / 58°F | 80 mm | 67% | 67% |
| August | 26°C / 78°F | 15°C / 58°F | 51 mm | 65% | 62% |
| September | 21°C / 69°F | 10°C / 51°F | 47 mm | 71% | 63% |
| October | 14°C / 58°F | 6°C / 42°F | 49 mm | 81% | 70% |
| November | 8°C / 46°F | 2°C / 35°F | 36 mm | 91% | 80% |
| December | 4°C / 38°F | -1°C / 30°F | 43 mm | 93% | 81% |
What to pack for August
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- A small travel umbrella, just in case
Is August a good time to visit Poznań?
Compare the months in the chart above to find your ideal window.
Best time to visit Poznań →Other Poland cities in August
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Poznań weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/poland/poznan/august
<a href="https://weathercompare.eu/weather/poland/poznan/august">Poznań weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/poland/poznan" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Poznań weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/poland/poznan/august">Poznań weather in August</a> – WeatherCompare</p>
Poznań in August: quick answers
Is August a good time to visit Poznań?
August is a reasonable time for Poznań: highs around 26°C and about 51 mm of rain, though not one of the three best months.
How warm is Poznań in August?
Average highs are about 26°C (78°F) and average lows about 15°C (58°F), based on 10 years of daily data.
Does it rain a lot in Poznań in August?
Poznań typically gets around 51 mm of rain in August — some rain.
Figures are long-term averages for the area around Poznań (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.