Best year time to visit Grotto

General weather information about Grotto

Average annual temperature is 9.9 °C

Absolute maximum temperature: 37.2 °C

Absolute minimum temperature: -14.5 °C

Number of sunny days: 143 days

Number of rainy days: 173 days

Number of snow days: 49 days

Look at detailed online map of Grotto

* Weather data for Grotto United States is based on climate observations for 2026 year

Grotto air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)8.310.015.824.628.830.832.437.230.827.016.612.2
Average daytime temperature (°C)5.85.88.311.220.822.526.928.122.317.610.77.0
Average temperature (°C)2.71.53.66.113.315.719.620.215.411.35.63.3
Average night temperature (°C)0.3-1.60.32.56.99.412.613.410.47.22.70.0
Absolute minimum temperature (°C)-11.9-14.5-4.4-4.00.83.79.38.72.9-1.6-2.4-8.6

Grotto monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.015.014.013.011.09.08.0
Daylight mean duration (h)8.910.211.913.615.215.915.614.212.610.99.38.5
Daylight minimum duration (h)8.09.011.012.014.015.015.013.011.010.08.08.0
Sunshine mean duration (h)2.83.86.45.39.610.312.810.98.06.34.22.3
Precipitation (mm)15629115218334641742125108241397
Sunny days5696101324221414146
Rainy days131271821177916161522
Snow days131015600000113

Grotto - weather forecast by months

Grotto weather in januaryGrotto weather in februaryGrotto weather in marchGrotto weather in aprilGrotto weather in mayGrotto weather in juneGrotto weather in julyGrotto weather in augustGrotto weather in septemberGrotto weather in octoberGrotto weather in novemberGrotto weather in december

Best time to visit Grotto:

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

  • May — 9.6(h)
  • June — 10.3(h)
  • July — 12.8(h)
  • August — 10.9(h)

Months with the longest average daylight duration in Grotto:

  • June — 15.9(h)
  • July — 15.6(h)

The largest precipitation sum in Grotto is at

  • February — 291(mm)
  • November — 241(mm)
  • December — 397(mm)

    • Weather forecast in the closest to Grotto admin centers

    Weather forecast in the closest towns to Grotto

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    Frequently asked questions

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