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August Weather in Herculaneum, United States

Last updated: June 24, 2025

In Herculaneum, United States, the average temperature in August hovers around 25°C (76°F), making for a pleasant climate. Daily temperatures can vary, with minimums dipping to 13°C (55°F) and maximums soaring up to 35°C (96°F). Expect a moderate amount of precipitation, averaging 124 mm (4.9 in) over approximately 12 days, with an overall humidity level of around 80%.

August Temperature in Herculaneum

In August in Herculaneum, the average temperature is 25°C (76°F). The maximum can reach 35°C (96°F), and the minimum can be as low as 13°C (55°F). This makes Herculaneum an ideal destination for travelers seeking warm weather with comfortable evenings.

August Weather in Herculaneum: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Herculaneum, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Herculaneum, August typically has an average temperature of 25°C (76°F), with highs reaching up to 35°C (96°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec333648556776797672594540
Data source: Temperature data for Herculaneum generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Herculaneum

In Herculaneum in August, the total precipitation amount is 124 mm (4.9 in) over a span of 12 days.

August Precipitation Trends in Herculaneum

The chart displays monthly precipitation patterns in Herculaneum, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Herculaneum, August typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec77841321371438889124691047162
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Herculaneum

In Herculaneum in August humidity is 80%. With an average temperature of 25°C (76°F), this humidity feels like a warm embrace that soaks into your clothes, making every step a reminder of the tropical atmosphere and the weight of the air around you, perfect for adventurers seeking vibrant culture but requiring breaks in shaded spots to recharge.

August Average Humidity in Herculaneum

This chart illustrates the average monthly humidity levels in Herculaneum, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Herculaneum is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Herculaneum

In Herculaneum in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Herculaneum.

Maximum UV Index Levels in Herculaneum for August

The chart shows the monthly maximum UV Index (UVI) for Herculaneum in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Herculaneum typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109753
Data source: Herculaneum August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Herculaneum Compares to Other Months

Weather in Herculaneum varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Herculaneum, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Herculaneum, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)77 mm (3.0 inches)82%moderate
February Weather2°C (37°F)84 mm (3.3 inches)80%moderate
March Weather9°C (48°F)132 mm (5.2 inches)80%high
April Weather13°C (56°F)137 mm (5.4 inches)80%very high
May Weather19°C (67°F)143 mm (5.6 inches)82%very high
June Weather24°C (76°F)88 mm (3.5 inches)83%extreme
July Weather26°C (80°F)89 mm (3.5 inches)81%very high
August Weather25°C (76°F)124 mm (4.9 inches)80%very high
September Weather22°C (72°F)68 mm (2.7 inches)76%very high
October Weather15°C (59°F)104 mm (4.1 inches)76%high
November Weather7°C (45°F)71 mm (2.8 inches)85%moderate
December Weather4°C (40°F)62 mm (2.5 inches)86%moderate

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