September Weather in Gladstone, United States

Last updated: June 24, 2025

In September, the average temperature in Gladstone, United States hovers around 16°C (61°F), with lows dipping to 6°C (42°F) and highs reaching up to 25°C (78°F). Expect about 98 mm (3.8 in) of precipitation spread over 10 days, contributing to an average humidity of 79%. Prepare for a mix of comfortable breezes and occasional showers!

September Temperature in Gladstone

In September in Gladstone, the average temperature is 16°C (61°F). The maximum can reach 25°C (78°F), while the minimum can drop as low as 6°C (42°F). This makes Gladstone a pleasant destination for travelers seeking mild weather and comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Gladstone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gladstone, September typically has an average temperature of 16°C (61°F), with highs reaching up to 25°C (78°F) and lows dropping to around 6°C (42°F).

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

September Precipitation in Gladstone

In Gladstone in September, the precipitation amount is 98 mm (3.8 in) spread over a period of 10 days.

September Precipitation Trends in Gladstone

The chart displays monthly precipitation patterns in Gladstone, 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 Gladstone, September typically receives around 98 mm (3.8 inches) of precipitation spread over approximately 10 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 Gladstone

In Gladstone in September humidity is 79%. With an average temperature of 16°C (61°F), this humidity feels like a warm, moist embrace, making travel a bit more challenging as the air tends to weigh heavily, but it also offers a refreshing atmosphere perfect for exploring local sights and enjoying nature.

September Average Humidity in Gladstone

This chart illustrates the average monthly humidity levels in Gladstone, 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 Gladstone is approximately 79%, 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 Gladstone

In Gladstone in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Gladstone.

Maximum UV Index Levels in Gladstone for September

The chart shows the monthly maximum UV Index (UVI) for Gladstone 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 Gladstone typically reaches 7, which falls under the high exposure category.

Data source: Gladstone 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 Gladstone Compares to Other Months

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

This table compares monthly weather conditions in Gladstone, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	41 mm (1.6 inches)	91%	low
February Weather	-6°C (21°F)	55 mm (2.2 inches)	91%	moderate
March Weather	-2°C (29°F)	61 mm (2.4 inches)	87%	moderate
April Weather	2°C (37°F)	90 mm (3.5 inches)	87%	high
May Weather	9°C (48°F)	81 mm (3.2 inches)	82%	very high
June Weather	16°C (60°F)	99 mm (3.9 inches)	79%	very high
July Weather	20°C (69°F)	91 mm (3.6 inches)	75%	very high
August Weather	19°C (67°F)	96 mm (3.8 inches)	76%	very high
September Weather	16°C (61°F)	98 mm (3.8 inches)	79%	high
October Weather	10°C (50°F)	117 mm (4.6 inches)	83%	moderate
November Weather	2°C (36°F)	64 mm (2.5 inches)	86%	moderate
December Weather	-3°C (28°F)	67 mm (2.6 inches)	87%	low