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August Weather in New Castle, United States

Last updated: June 24, 2025

In August, the average temperature in New Castle, United States hovers around 24°C (76°F). Expect a minimum of 13°C (56°F) and a maximum reaching 34°C (94°F). With 99 mm (3.9 in) of precipitation over 12 days, it’s wise to be prepared for some rain. The average humidity is a steamy 70%, contributing to a tropical atmosphere.

August Temperature in New Castle

In August in New Castle, the average temperature is 24°C (76°F). Maximums can reach 34°C (94°F), while minimums can dip as low as 13°C (56°F). This mild weather makes New Castle an ideal destination for travelers seeking comfortable temperatures.

August Weather in New Castle: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in New Castle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Castle, August typically has an average temperature of 24°C (76°F), with highs reaching up to 34°C (94°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec353947556774787571604540
Data source: Temperature data for New Castle 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 New Castle

In New Castle in August, the total precipitation amount is 99 mm (3.9 in) recorded over a span of 12 days.

August Precipitation Trends in New Castle

The chart displays monthly precipitation patterns in New Castle, 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 New Castle, August typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec871291391431261591039911510692111
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in New Castle

In New Castle in August, humidity is 70%. With an average temperature of 24°C (76°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel a bit sticky and heavier, so travelers should stay hydrated and take regular breaks to enjoy the sights comfortably.

August Average Humidity in New Castle

This chart illustrates the average monthly humidity levels in New Castle, 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 New Castle is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in New Castle

In New Castle 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 New Castle.

Maximum UV Index Levels in New Castle for August

The chart shows the monthly maximum UV Index (UVI) for New Castle 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 New Castle typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108743
Data source: New Castle 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 New Castle Compares to Other Months

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

This table compares monthly weather conditions in New Castle, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)87 mm (3.4 inches)87%moderate
February Weather4°C (39°F)129 mm (5.1 inches)85%moderate
March Weather8°C (47°F)139 mm (5.5 inches)86%high
April Weather13°C (56°F)143 mm (5.6 inches)84%very high
May Weather19°C (67°F)126 mm (5.0 inches)79%very high
June Weather23°C (74°F)159 mm (6.3 inches)82%very high
July Weather25°C (78°F)103 mm (4.0 inches)79%very high
August Weather24°C (76°F)99 mm (3.9 inches)70%very high
September Weather22°C (71°F)115 mm (4.5 inches)69%very high
October Weather15°C (60°F)106 mm (4.2 inches)76%high
November Weather7°C (45°F)92 mm (3.6 inches)88%moderate
December Weather5°C (40°F)111 mm (4.4 inches)87%moderate

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