Best year time to visit Semily

General weather information about Semily

Average annual temperature is 9.0 °C

Absolute maximum temperature: 30.0 °C

Absolute minimum temperature: -12.7 °C

Number of sunny days: 117 days

Number of rainy days: 230 days

Number of snow days: 18 days

Look at detailed online map of Semily

* Weather data for Semily Czech Republic is based on climate observations for 2026 year

Semily air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.79.915.117.422.827.630.028.926.624.011.57.9
Average daytime temperature (°C)3.23.67.49.817.221.623.822.221.614.15.32.9
Average temperature (°C)1.10.43.46.012.317.018.817.816.610.52.91.0
Average night temperature (°C)-1.2-2.6-0.61.87.312.013.513.511.77.30.5-1.3
Absolute minimum temperature (°C)-8.9-12.7-10.1-5.52.96.48.85.87.50.7-10.1-10.9

Semily 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)8.610.011.913.815.516.416.014.512.610.79.08.1
Daylight minimum duration (h)8.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)2.14.35.27.211.812.512.38.910.15.62.32.1
Precipitation (mm)10477137623666591422180136148
Sunny days8116919811821916
Rainy days17162221122220239222719
Snow days613000000026

Semily - weather forecast by months

Semily weather in januarySemily weather in februarySemily weather in marchSemily weather in aprilSemily weather in maySemily weather in juneSemily weather in julySemily weather in augustSemily weather in septemberSemily weather in octoberSemily weather in novemberSemily weather in december

Best time to visit Semily:

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

  • May — 11.8(h)
  • June — 12.5(h)
  • July — 12.3(h)
  • August — 8.9(h)
  • September — 10.1(h)

Months with the longest average daylight duration in Semily:

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

The largest precipitation sum in Semily is at

  • March — 137(mm)
  • August — 142(mm)
  • November — 136(mm)
  • December — 148(mm)

    • Weather forecast in the closest to Semily admin centers

    Weather forecast in the closest towns to Semily

    Explore Semily

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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