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August Weather in Newcastle, United States

Last updated: June 24, 2025

In August, the average temperature in Newcastle, United States reaches a warm 30°C (86°F). Expect a minimum of 17°C (64°F) and occasional spikes up to a maximum of 42°C (108°F). Rainfall is moderate, with approximately 48 mm (1.9 in) falling over about 6 days. Stay refreshed with an average humidity level of 67% throughout the month!

August Temperature in Newcastle

In August in Newcastle, the average temperature is 30°C (86°F). Maximums can reach 42°C (108°F), while minimums can be as low as 17°C (64°F). Pack lightweight clothing and stay hydrated to enjoy your travels comfortably.

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

The chart illustrates August temperature patterns in Newcastle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newcastle, August typically has an average temperature of 30°C (86°F), with highs reaching up to 42°C (108°F) and lows dropping to around 17°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec454759657583878679665550
Data source: Temperature data for Newcastle 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 Newcastle

In Newcastle in August, the precipitation amount is 48 mm (1.9 in) distributed over 6 days.

August Precipitation Trends in Newcastle

The chart displays monthly precipitation patterns in Newcastle, 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 Newcastle, August typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec374471639957234894783341
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Newcastle

In Newcastle in August humidity is 67%. With an average temperature of 30°C (86°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a bit sticky and challenging but still manageable with frequent breaks for hydration and shade.

August Average Humidity in Newcastle

This chart illustrates the average monthly humidity levels in Newcastle, 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 Newcastle is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Newcastle

In Newcastle in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Newcastle.

Maximum UV Index Levels in Newcastle for August

The chart shows the monthly maximum UV Index (UVI) for Newcastle 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 Newcastle typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Newcastle 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 Newcastle Compares to Other Months

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

This table compares monthly weather conditions in Newcastle, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)37 mm (1.5 inches)77%moderate
February Weather8°C (47°F)44 mm (1.7 inches)76%high
March Weather15°C (59°F)71 mm (2.8 inches)74%very high
April Weather18°C (65°F)63 mm (2.5 inches)75%very high
May Weather24°C (75°F)99 mm (3.9 inches)80%extreme
June Weather28°C (83°F)57 mm (2.2 inches)80%extreme
July Weather30°C (87°F)23 mm (0.9 inches)75%extreme
August Weather30°C (86°F)48 mm (1.9 inches)67%extreme
September Weather26°C (79°F)94 mm (3.7 inches)64%very high
October Weather19°C (67°F)78 mm (3.1 inches)70%very high
November Weather13°C (55°F)33 mm (1.3 inches)82%high
December Weather10°C (50°F)41 mm (1.6 inches)85%moderate

Compare Newcastle's Climate with Cities Worldwide