August Weather in Oswego, United States

Last updated: June 24, 2025

In August, the average temperature in Oswego, United States hovers around 26°C (79°F). Expect a range from a cool 15°C (59°F) to a sizzling 36°C (97°F). Be prepared for occasional rain, with 117 mm (4.6 in) of precipitation spread over 11 days. On top of that, the average humidity is a comfortable 73%, adding to the region's inviting atmosphere.

August Temperature in Oswego

In August in Oswego, the average temperature is 26°C (79°F). Maximums can reach 36°C (97°F), while minimums can drop to as low as 15°C (59°F). This weather makes it an ideal time for travelers seeking warm days and cool evenings.

August Weather in Oswego: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Oswego, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oswego, August typically has an average temperature of 26°C (79°F), with highs reaching up to 36°C (97°F) and lows dropping to around 15°C (59°F).

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

August Precipitation in Oswego

In Oswego in August, the total precipitation amount reaches 117 mm (4.6 in) over the course of 11 days.

August Precipitation Trends in Oswego

The chart displays monthly precipitation patterns in Oswego, 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 Oswego, August typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Oswego

In Oswego in August, humidity is 73%. With an average temperature of 26°C (79°F), this humidity feels like a warm, sticky embrace, making travel slightly uncomfortable as you navigate through the heat with a constant sheen of sweat on your skin.

August Average Humidity in Oswego

This chart illustrates the average monthly humidity levels in Oswego, 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 Oswego is approximately 73%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Oswego

In Oswego 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 Oswego.

Maximum UV Index Levels in Oswego for August

The chart shows the monthly maximum UV Index (UVI) for Oswego 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 Oswego typically reaches 10, which falls under the very high exposure category.

Data source: Oswego 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 Oswego Compares to Other Months

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

This table compares monthly weather conditions in Oswego, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	67 mm (2.6 inches)	77%	moderate
February Weather	3°C (38°F)	65 mm (2.6 inches)	76%	moderate
March Weather	10°C (51°F)	128 mm (5.0 inches)	71%	high
April Weather	14°C (58°F)	124 mm (4.9 inches)	73%	very high
May Weather	20°C (68°F)	239 mm (9.4 inches)	83%	very high
June Weather	26°C (78°F)	96 mm (3.8 inches)	83%	extreme
July Weather	27°C (81°F)	98 mm (3.8 inches)	81%	extreme
August Weather	26°C (79°F)	117 mm (4.6 inches)	73%	very high
September Weather	24°C (75°F)	94 mm (3.7 inches)	67%	very high
October Weather	16°C (60°F)	127 mm (5.0 inches)	72%	high
November Weather	9°C (48°F)	53 mm (2.1 inches)	82%	moderate
December Weather	6°C (42°F)	40 mm (1.6 inches)	85%	moderate