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Weather in Poznan - 14-day forecast

Detailed weather forecast for Poznan, Poland: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Poznan
today🌧️ 21°💧 1.4 mm
Sun🌤️ 18°💧 0.1 mm
Mon☁️ 18°💧 0.4 mm
Tue🌧️ 22°💧 0.8 mm
Wed🌧️ 20°💧 0.9 mm
Thu☁️ 18°💧 1.2 mm
Fri🌧️ 18°💧 0.9 mm
Sat🌧️ 13°💧 3.8 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Thursday 10 Sept in Poznan, the forecast high is 18°C. Typical daytime temperatures at this time of year range from 17°C to 25°C, so it will be cooler than usual. It is cooler than 77% of similar days.

21°Cnear normal
usually 18°C–25°C
night: warmer than usual rain: typical rainfall wind: exceptionally strong
18°Ccooler than usual
usually 18°C–25°C
cooler than 75% of similar days
night: warmer than usual rain: typical rainfall wind: stronger than usual
18°Ccooler than usual
usually 18°C–25°C
cooler than 76% of similar days
night: warmer than usual rain: typical rainfall wind: lighter than usual
22°Cnear normal
usually 18°C–25°C
night: exceptionally warm rain: typical rainfall wind: lighter than usual
20°Cnear normal
usually 17°C–25°C
night: exceptionally warm rain: typical rainfall wind: lighter than usual
18°Ccooler than usual
usually 17°C–25°C
cooler than 77% of similar days
night: exceptionally warm rain: typical rainfall wind: typical
18°Ccooler than usual
usually 17°C–24°C
cooler than 71% of similar days
night: exceptionally warm rain: typical rainfall wind: stronger than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
10°23°35° 1981: 21°C1982: 23°C1983: 19°C1984: 17°C1985: 15°C1986: 16°C1987: 20°C1988: 20°C1989: 22°C1990: 17°C1991: 19°C1992: 19°C1993: 19°C1994: 20°C1995: 20°C1996: 16°C1997: 19°C1998: 24°C1999: 26°C2000: 20°C2001: 16°C2002: 24°C2003: 21°C2004: 24°C2005: 28°C2006: 22°C2007: 18°C2008: 23°C2009: 22°C2010: 18°C2011: 22°C2012: 22°C2013: 22°C2014: 23°C2015: 19°C2016: 26°C2017: 19°C2018: 25°C2019: 20°C2020: 21°C2021: 24°C2022: 22°C2023: 28°C2024: 26°C2025: 24°C 2026 forecast: 19°C current forecast 19°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 21°C by day. The coolest year was 1985 (15°C) and the warmest was 2005 (28°C). The current forecast averages 19°C - lower than in 67% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Poznan

Poznan - 14-day weather forecast infographic

Poznan 30 & 45-day weather - long-range outlook

Next 16 days · forecast
19°
around 16° at night · days with rain: 8
Weeks 3-4 · avg for September
19°
around 10° at night · rain chance 48%
Weeks 5-7 · avg for October
13°
around 6° at night · rain chance 57%
The 30 & 45-day outlook for Poznan: the next 16 days are a numerical forecast updated daily - on average 19° by day and 16° at night. Further out we rely on multi-year climate averages: around 19° in September, and about 13° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Poznan

Saturday5 September 2026
🌧️21°light rain
sunrise 06:09 · sunset 19:32 · night 15° · evening 18° · rain 1.4 mm · humidity 49% · wind 9 m/s · clouds 18%
Sunday6 September 2026
🌤️18°a few clouds
sunrise 06:11 · sunset 19:30 · night 13° · evening 19° · rain 0.12 mm · humidity 49% · wind 8 m/s · clouds 23%
Monday7 September 2026
☁️18°overcast clouds
sunrise 06:12 · sunset 19:27 · night 14° · evening 20° · rain 0.39 mm · humidity 51% · wind 4 m/s · clouds 100%
Tuesday8 September 2026
🌧️22°light rain
sunrise 06:14 · sunset 19:25 · night 19° · evening 25° · rain 0.75 mm · humidity 47% · wind 4 m/s · clouds 99%
Wednesday9 September 2026
🌧️20°light rain
sunrise 06:16 · sunset 19:23 · night 18° · evening 21° · rain 0.92 mm · humidity 55% · wind 4 m/s · clouds 100%
Thursday10 September 2026
☁️18°overcast clouds
sunrise 06:17 · sunset 19:20 · night 15° · evening 19° · rain 1.2 mm · humidity 50% · wind 5 m/s · clouds 92%
Friday11 September 2026
🌧️18°light rain
sunrise 06:19 · sunset 19:18 · night 15° · evening 20° · rain 0.93 mm · humidity 50% · wind 8 m/s · clouds 100%
Saturday12 September 2026
🌧️13°light rain
sunrise 06:21 · sunset 19:16 · night 14° · evening 17° · rain 3.75 mm · humidity 84% · wind 7 m/s · clouds 89%
Sunday13 September 2026
🌧️13°light rain
sunrise 06:22 · sunset 19:13 · night 13° · evening 16° · rain 2.97 mm · humidity 82% · wind 9 m/s · clouds 100%
Monday14 September 2026
☁️15°broken clouds
sunrise 06:24 · sunset 19:11 · night 13° · evening 19° · rain 1.62 mm · humidity 68% · wind 5 m/s · clouds 84%
Tuesday15 September 2026
🌤️17°scattered clouds
sunrise 06:26 · sunset 19:08 · night 14° · evening 21° · rain 0.18 mm · humidity 53% · wind 3 m/s · clouds 36%
Wednesday16 September 2026
🌧️23°light rain
sunrise 06:27 · sunset 19:06 · night 19° · evening 27° · rain 1.62 mm · humidity 52% · wind 6 m/s · clouds 64%
Thursday17 September 2026
🌧️20°moderate rain
sunrise 06:29 · sunset 19:04 · night 19° · evening 23° · rain 4.77 mm · humidity 67% · wind 6 m/s · clouds 78%
Friday18 September 2026
🌤️23°a few clouds
sunrise 06:31 · sunset 19:01 · night 19° · evening 26° · rain 5.02 mm · humidity 46% · wind 3 m/s · clouds 20%
Saturday19 September 2026
☀️23°clear sky
sunrise 06:32 · sunset 18:59 · night 19° · evening 25° · humidity 47% · wind 6 m/s · clouds 8%
Sunday20 September 2026
☀️24°clear sky
sunrise 06:34 · sunset 18:57 · night 21° · evening 27° · humidity 46% · wind 6 m/s · clouds 8%

UV index in Poznan - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTPoznan03681111+4.5UV MODERATEtoday, daily maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.Unprotected fair skin may burn in about 45 min5Sat5.095Sun6.095Mon7.095Tue8.094Wed9.094Thu10.093Fri11.092Sat12.093Sun13.093Mon14.094Tue15.091Wed16.090Thu17.093Fri18.091Sat19.094Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Poznan is 5 (moderate) - unprotected fair skin can burn in about 45 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Pollen in Poznan - info for allergy sufferers

PLANT POLLEN · 4-DAY FORECASTPoznanHighest pollen today: Ragweed9 grains/m³ · low leveltoday5.09tomorrow6.09Mon7.09Tue8.09Grasses-1--Mugwort--11Ragweed9610-nonelowmoderatehighvery highoff season: alder, birch, olive · values in grains/m³ (daily peak)pogodapodroze.pl · 2026-09-05
Today ragweed pollen is highest in Poznan - about 9 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Air quality and smog in Poznan

Air quality in Poznan is currently very good. Fine particulate PM2.5: 2.4 µg/m³, PM10: 4.2 µg/m³.
CityPM2.5 (µg/m³)PM10 (µg/m³)Air quality
Poznan2.44.2very good
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 03:00).

Poznan weather through the year

Poznan - annual climate

Warmest, driest months on average: April, May, June, July.

Upcoming public holidays in Poland: All Saints' Day — 1 November · Independence Day — 11 November · Christmas Eve — 24 December.

Nearby and related places

BydgoszczWroclawLodzSzczecinLiberecCzestochowaBerlinWarsawKatowiceGdansk

FAQ - Poznan weather

What is the weather like in Poznan today?
Today it is about 21° during the day and 15° at night, light rain.
How far ahead can I check the forecast for Poznan?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.