Best year time to visit Herculaneum

General weather information about Herculaneum

Average annual temperature is 15.1 °C

Absolute maximum temperature: 38.5 °C

Absolute minimum temperature: -9.9 °C

Number of sunny days: 200 days

Number of rainy days: 165 days

Look at detailed online map of Herculaneum

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

Herculaneum air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)20.921.923.628.531.535.437.638.533.130.127.418.4
Average daytime temperature (°C)9.212.113.821.326.430.832.430.527.721.315.111.0
Average temperature (°C)4.36.07.614.320.024.226.325.321.815.89.26.4
Average night temperature (°C)0.91.53.18.614.518.421.621.217.211.64.93.2
Absolute minimum temperature (°C)-9.9-8.9-6.12.26.312.817.915.412.9-1.6-4.1-4.2

Herculaneum monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.812.013.214.214.814.513.612.411.210.19.6
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)5.37.17.010.410.912.611.610.010.37.57.86.1
Precipitation (mm)7950228631054912813635511893
Sunny days16181420151691320182318
Rainy days15101710161422181013713
Snow days000000000000

Herculaneum - weather forecast by months

Herculaneum weather in januaryHerculaneum weather in februaryHerculaneum weather in marchHerculaneum weather in aprilHerculaneum weather in mayHerculaneum weather in juneHerculaneum weather in julyHerculaneum weather in augustHerculaneum weather in septemberHerculaneum weather in octoberHerculaneum weather in novemberHerculaneum weather in december

Best time to visit Herculaneum:

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

  • June — 12.6(h)
  • July — 11.6(h)

The largest precipitation sum in Herculaneum is at

  • March — 228(mm)
  • July — 128(mm)
  • August — 136(mm)

    • Weather forecast in the closest to Herculaneum admin centers

    Weather forecast in the closest towns to Herculaneum

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    Frequently asked questions

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