September Weather in Newport, United States

Last updated: June 24, 2025

In Newport, United States, the average temperature during September is a pleasant 24°C (76°F). Temperatures can range from a cool 9°C (48°F) to a warm 35°C (96°F). Expect about 86 mm (3.4 in) of precipitation spread over 7 days, contributing to an average humidity level of 71%. Enjoy the variability of the season!

September Temperature in Newport

In September in Newport, the average temperature is 24°C (76°F). The maximum can reach 35°C (96°F), while the minimum can drop as low as 9°C (48°F). This range makes it an ideal destination for travelers who enjoy warm days and 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 24°C (76°F), with highs reaching up to 35°C (96°F) and lows dropping to around 9°C (48°F).

Data source: Temperature data for Newport generated using information from the Copernicus Climate Change Service.

September Precipitation in Newport

In Newport in September, the total precipitation amount is 86 mm (3.4 in) over a span of 7 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 86 mm (3.4 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Newport

In Newport in September humidity is 71%. With an average temperature of 24°C (76°F), this humidity feels like a warm, tropical embrace, making it essential to stay hydrated while exploring, as the air is thick and can leave you feeling sticky and slightly tired after even short excursions.

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 71%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	93 mm (3.7 inches)	84%	moderate
February Weather	7°C (44°F)	157 mm (6.2 inches)	83%	high
March Weather	12°C (54°F)	146 mm (5.8 inches)	81%	very high
April Weather	16°C (61°F)	156 mm (6.1 inches)	81%	very high
May Weather	22°C (71°F)	159 mm (6.3 inches)	83%	extreme
June Weather	26°C (79°F)	95 mm (3.7 inches)	83%	extreme
July Weather	28°C (82°F)	109 mm (4.3 inches)	81%	extreme
August Weather	26°C (80°F)	110 mm (4.3 inches)	74%	very high
September Weather	24°C (76°F)	86 mm (3.4 inches)	71%	very high
October Weather	18°C (64°F)	123 mm (4.8 inches)	76%	high
November Weather	10°C (50°F)	73 mm (2.9 inches)	84%	moderate
December Weather	8°C (46°F)	121 mm (4.8 inches)	88%	moderate