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August Weather in Newcastle, United States

Last updated: June 24, 2025

In Newcastle, United States, the average temperature in August hovers around 22°C (71°F), with variations ranging from a brisk 6°C (42°F) to a sweltering 38°C (100°F). Expect about 31 mm (1.2 in) of precipitation over 5 days, contributing to an average humidity of 85% that envelops the region.

August Temperature in Newcastle

In August in Newcastle, the average temperature is 22°C (71°F). The maximum can reach 38°C (100°F) and the minimum can be as low as 6°C (42°F). This makes Newcastle an ideal destination for travelers seeking a mix of warm days and cooler evenings, perfect for outdoor activities and exploring the local scenery.

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 22°C (71°F), with highs reaching up to 38°C (100°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec252237435468747163443627
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 31 mm (1.2 in) spread over 5 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 31 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec152431466434473130401924
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 85%. With an average temperature of 22°C (71°F), this humidity feels like a warm, enveloping blanket that can quickly lead to discomfort, making outdoor activities feel more taxing and sweat-inducing, so travelers should stay hydrated and plan for frequent breaks in shaded or air-conditioned areas.

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 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%78%64%66%74%84%85%85%76%71%73%75%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3561091111108642
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 Weather-4°C (25°F)15 mm (0.6 inches)73%moderate
February Weather-6°C (22°F)24 mm (1.0 inches)78%moderate
March Weather3°C (37°F)31 mm (1.2 inches)64%high
April Weather6°C (43°F)46 mm (1.8 inches)66%very high
May Weather12°C (54°F)63 mm (2.5 inches)74%very high
June Weather20°C (68°F)34 mm (1.3 inches)84%extreme
July Weather24°C (75°F)47 mm (1.8 inches)85%extreme
August Weather22°C (71°F)31 mm (1.2 inches)85%very high
September Weather17°C (63°F)30 mm (1.2 inches)76%very high
October Weather7°C (44°F)40 mm (1.6 inches)71%high
November Weather2°C (36°F)19 mm (0.8 inches)73%moderate
December Weather-3°C (27°F)24 mm (0.9 inches)75%low

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