September Weather in Otis, United States

Last updated: June 24, 2025

In September, the average temperature in Otis, United States is a comfortable 16°C (62°F). Expect a range that dips as low as 2°C (35°F) and peaks at a warm 30°C (87°F). During this time, precipitation averages around 79 mm (3.1 in) across 7 days, and the air typically holds a humid 77%, creating a rich and vibrant atmosphere.

September Temperature in Otis

In September in Otis, the average temperature is 16°C (62°F). Maximum temperatures can reach 30°C (87°F) and minimums can be as low as 2°C (35°F). It’s advisable to pack layers to comfortably enjoy your travels during this month.

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

The chart illustrates September temperature patterns in Otis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Otis, September typically has an average temperature of 16°C (62°F), with highs reaching up to 30°C (87°F) and lows dropping to around 2°C (35°F).

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

September Precipitation in Otis

In Otis in September, the total precipitation amount is 79 mm (3.1 in) distributed over a period of 7 days.

September Precipitation Trends in Otis

The chart displays monthly precipitation patterns in Otis, 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 Otis, September typically receives around 79 mm (3.1 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 Otis

In Otis in September, humidity is 77%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel heavy and draining, so travelers may want to plan for breaks in shaded areas and stay hydrated.

September Average Humidity in Otis

This chart illustrates the average monthly humidity levels in Otis, 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 Otis is approximately 77%, 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 Otis

In Otis 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 Otis.

Maximum UV Index Levels in Otis for September

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

Data source: Otis 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 Otis Compares to Other Months

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

This table compares monthly weather conditions in Otis, 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 (23°F)	92 mm (3.6 inches)	88%	low
February Weather	-4°C (24°F)	84 mm (3.3 inches)	88%	moderate
March Weather	-1°C (31°F)	70 mm (2.8 inches)	85%	moderate
April Weather	6°C (43°F)	126 mm (5.0 inches)	81%	high
May Weather	12°C (54°F)	95 mm (3.7 inches)	76%	very high
June Weather	17°C (63°F)	85 mm (3.3 inches)	74%	very high
July Weather	21°C (69°F)	90 mm (3.5 inches)	74%	very high
August Weather	20°C (69°F)	70 mm (2.8 inches)	74%	very high
September Weather	16°C (62°F)	79 mm (3.1 inches)	77%	high
October Weather	10°C (51°F)	110 mm (4.3 inches)	82%	moderate
November Weather	3°C (38°F)	120 mm (4.7 inches)	85%	moderate
December Weather	-3°C (27°F)	124 mm (4.9 inches)	84%	low