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September Weather in Newport, United States

Last updated: June 24, 2025

In Newport, United States, the average temperature in September is a pleasant 22°C (72°F). However, temperatures can vary, with a minimum dipping to 7°C (44°F) and a maximum soaring to 35°C (95°F). Expect some rain as well, with approximately 87 mm (3.4 in) of precipitation spread over 9 days. The average humidity sits at a comfortable 76%, making it an intriguing destination for your travels!

September Temperature in Newport

In September in Newport, the average temperature is 22°C (72°F). Maximums can reach 35°C (95°F), and minimums can be as low as 7°C (44°F). It's a perfect time to pack layers and enjoy a warm climate while being prepared for cooler evenings.

September Weather in Newport: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Newport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newport, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec394550576773777572624743
Data source: Temperature data for Newport 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.

September Precipitation in Newport

In Newport in September, the precipitation amount is 87 mm (3.4 in), occurring over a span of 9 days.

September Precipitation Trends in Newport

The chart displays monthly precipitation patterns in Newport, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Newport, September typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec881441371271101011001118712276126
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Newport

In Newport in September humidity is 76%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as you navigate through the thick, saturated air.

September Average Humidity in Newport

This chart illustrates the average monthly humidity levels in Newport, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Newport is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Newport

In Newport in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Newport.

Maximum UV Index Levels in Newport for September

The chart shows the monthly maximum UV Index (UVI) for Newport in September, 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 September, the maximum UV index in Newport typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Newport September 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 September Weather in Newport Compares to Other Months

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

This table compares monthly weather conditions in Newport, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)88 mm (3.5 inches)86%moderate
February Weather7°C (45°F)144 mm (5.7 inches)86%high
March Weather10°C (51°F)137 mm (5.4 inches)86%very high
April Weather14°C (58°F)126 mm (5.0 inches)82%very high
May Weather19°C (67°F)110 mm (4.3 inches)85%extreme
June Weather23°C (73°F)101 mm (4.0 inches)85%extreme
July Weather25°C (77°F)100 mm (3.9 inches)83%extreme
August Weather24°C (76°F)111 mm (4.4 inches)76%very high
September Weather22°C (72°F)87 mm (3.4 inches)76%very high
October Weather16°C (62°F)122 mm (4.8 inches)80%high
November Weather8°C (48°F)76 mm (3.0 inches)88%moderate
December Weather6°C (43°F)126 mm (4.9 inches)88%moderate

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