Weather in Rumia in September

General weather information about Rumia

Average annual temperature is 9.5 °C

Absolute maximum temperature: 31.8 °C

Absolute minimum temperature: -7.7 °C

Number of sunny days: 125 days

Number of rainy days: 211 days

Number of snow days: 29 days

Look at detailed online map of Rumia

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

Rumia air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.48.614.321.422.428.627.131.827.024.112.68.3
Average daytime temperature (°C)4.94.07.09.716.221.021.722.021.813.15.93.6
Average temperature (°C)3.01.63.56.411.816.817.818.317.610.43.91.8
Average night temperature (°C)1.0-0.60.33.16.712.113.614.913.77.71.70.1
Absolute minimum temperature (°C)-3.9-4.9-5.4-3.11.53.711.611.38.24.4-6.9-7.7

Rumia monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.012.015.016.017.017.015.013.011.09.07.0
Daylight mean duration (h)8.09.711.914.116.117.216.614.912.710.58.57.4
Daylight minimum duration (h)7.08.010.013.015.016.015.013.011.09.07.07.0
Sunshine mean duration (h)2.25.06.49.312.813.712.89.610.04.63.41.2
Precipitation (mm)595544298449196368811970
Sunny days71081126194719455
Rainy days20121518511272411272021
Snow days468100000055

Rumia - weather forecast by months

Rumia weather in januaryRumia weather in februaryRumia weather in marchRumia weather in aprilRumia weather in mayRumia weather in juneRumia weather in julyRumia weather in augustRumia weather in septemberRumia weather in octoberRumia weather in novemberRumia weather in december

Best time to visit Rumia:

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

  • May — 12.8(h)
  • June — 13.7(h)
  • July — 12.8(h)
  • August — 9.6(h)
  • September — 10.0(h)

Months with the longest average daylight duration in Rumia:

  • May — 16.1(h)
  • June — 17.2(h)
  • July — 16.6(h)

The largest precipitation sum in Rumia is at

  • July — 91(mm)
  • August — 96(mm)
  • October — 88(mm)
  • November — 119(mm)

    • Weather forecast in the closest to Rumia admin centers

    Weather forecast in the closest towns to Rumia

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    Frequently asked questions

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