Best year time to visit Olsztyn

General weather information about Olsztyn

Average annual temperature is 9.8 °C

Absolute maximum temperature: 31.1 °C

Absolute minimum temperature: -13.2 °C

Number of sunny days: 113 days

Number of rainy days: 230 days

Number of snow days: 22 days

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* Weather data for Olsztyn Poland is based on climate observations for 2026 year

Olsztyn air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.39.018.320.322.128.530.431.127.523.715.59.7
Average daytime temperature (°C)4.03.38.611.316.622.224.824.322.415.16.42.9
Average temperature (°C)2.20.44.36.912.217.420.019.717.611.43.91.0
Average night temperature (°C)0.0-3.00.32.37.012.014.515.413.07.51.3-1.2
Absolute minimum temperature (°C)-4.9-13.2-5.6-5.30.64.29.510.19.00.7-5.9-10.3

Olsztyn monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.016.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.510.011.913.815.516.416.014.512.610.79.08.1
Daylight minimum duration (h)8.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)2.73.25.98.010.111.912.29.39.55.73.82.3
Precipitation (mm)6368426160727814418978279
Sunny days1011961669819748
Rainy days151419241524222311242118
Snow days633000000055

Olsztyn - weather forecast by months

Olsztyn weather in januaryOlsztyn weather in februaryOlsztyn weather in marchOlsztyn weather in aprilOlsztyn weather in mayOlsztyn weather in juneOlsztyn weather in julyOlsztyn weather in augustOlsztyn weather in septemberOlsztyn weather in octoberOlsztyn weather in novemberOlsztyn weather in december

Best time to visit Olsztyn:

The best time to visit Olsztyn during the most sunny months:

  • May — 10.1(h)
  • June — 11.9(h)
  • July — 12.2(h)
  • August — 9.3(h)
  • September — 9.5(h)

Months with the longest average daylight duration in Olsztyn:

  • May — 15.5(h)
  • June — 16.4(h)
  • July — 16.0(h)

The largest precipitation sum in Olsztyn is at

  • August — 144(mm)
  • October — 97(mm)

    • Weather forecast in the closest to Olsztyn admin centers

    Weather forecast in the closest towns to Olsztyn

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    Frequently asked questions

    When is the best time to visit Olsztyn?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Olsztyn.
    What is the weather like in Olsztyn?
    See average temperature, rainfall and daylight hours for Olsztyn by month in the table above.
    How many sunny days does Olsztyn have?
    The monthly weather statistics above show sunshine and rainfall patterns for Olsztyn throughout the year.