August Weather in Santee, United States

Last updated: June 24, 2025

In August, the average temperature in Santee, United States is a warm 27°C (81°F). Visitors should be prepared for a temperature range that varies from a minimum of 18°C (64°F) to a sizzling maximum of 37°C (99°F). Expect 136 mm (5.3 in) of precipitation spread over 18 days, contributing to a relatively high average humidity of 81%.

August Temperature in Santee

In August in Santee, the average temperature is 27°C (81°F). Maximum temperatures can reach up to 37°C (99°F), while minimums can dip as low as 18°C (64°F). It’s an ideal time for travelers to enjoy warm weather and outdoor activities in Santee.

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

The chart illustrates August temperature patterns in Santee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santee, August typically has an average temperature of 27°C (81°F), with highs reaching up to 37°C (99°F) and lows dropping to around 18°C (64°F).

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

August Precipitation in Santee

In Santee in August, the total precipitation amount is 136 mm (5.3 in), spread over 18 days.

August Precipitation Trends in Santee

The chart displays monthly precipitation patterns in Santee, 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 Santee, August typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 18 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 Santee

In Santee in August humidity is 81%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy blanket enveloping you, making travel quite uncomfortable as it can quickly drain your energy and require frequent hydration breaks.

August Average Humidity in Santee

This chart illustrates the average monthly humidity levels in Santee, 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 Santee is approximately 81%, 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 Santee

In Santee in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Santee.

Maximum UV Index Levels in Santee for August

The chart shows the monthly maximum UV Index (UVI) for Santee 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 Santee typically reaches 11, which falls under the extreme exposure category.

Data source: Santee 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 Santee Compares to Other Months

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

This table compares monthly weather conditions in Santee, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	75 mm (2.9 inches)	86%	moderate
February Weather	13°C (55°F)	95 mm (3.7 inches)	81%	high
March Weather	15°C (59°F)	76 mm (3.0 inches)	81%	very high
April Weather	19°C (66°F)	114 mm (4.5 inches)	79%	very high
May Weather	23°C (74°F)	92 mm (3.6 inches)	75%	extreme
June Weather	26°C (79°F)	114 mm (4.5 inches)	75%	extreme
July Weather	28°C (82°F)	158 mm (6.2 inches)	80%	extreme
August Weather	27°C (81°F)	136 mm (5.3 inches)	81%	extreme
September Weather	25°C (78°F)	116 mm (4.6 inches)	83%	very high
October Weather	21°C (70°F)	61 mm (2.4 inches)	78%	very high
November Weather	13°C (56°F)	66 mm (2.6 inches)	85%	high
December Weather	11°C (52°F)	137 mm (5.4 inches)	87%	moderate