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August Weather in Effingham, United States

Last updated: June 24, 2025

In Effingham, United States, the average temperature in August hovers around 25°C (77°F). Expect a minimum of 12°C (53°F) and a maximum of 37°C (98°F), making it a great time for various activities. However, be prepared for some rain, as 119 mm (4.7 in) of precipitation typically falls over 11 days. The average humidity is a comfortable 78%, contributing to a pleasant climate overall.

August Temperature in Effingham

In August in Effingham, the average temperature is 25°C (77°F). The maximum can reach 37°C (98°F), and the minimum can be as low as 12°C (53°F). It’s advisable to pack light clothing for the warm days and a sweater for the cooler evenings during your travels.

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

The chart illustrates August temperature patterns in Effingham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Effingham, August typically has an average temperature of 25°C (77°F), with highs reaching up to 37°C (98°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec303145536577807671564336
Data source: Temperature data for Effingham generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Effingham

In Effingham in August, the total precipitation amount is 119 mm (4.7 in), which occurs over the course of 11 days.

August Precipitation Trends in Effingham

The chart displays monthly precipitation patterns in Effingham, 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 Effingham, August typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec4031948121711276119841173832
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Effingham

In Effingham in August, humidity is 78%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, damp blanket, making travel feel a bit more exhausting and sticky as you navigate the sights.

August Average Humidity in Effingham

This chart illustrates the average monthly humidity levels in Effingham, 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 Effingham is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Effingham

In Effingham 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 Effingham.

Maximum UV Index Levels in Effingham for August

The chart shows the monthly maximum UV Index (UVI) for Effingham 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 Effingham typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Effingham 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 Effingham Compares to Other Months

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

This table compares monthly weather conditions in Effingham, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)40 mm (1.6 inches)76%moderate
February Weather0°C (31°F)31 mm (1.2 inches)77%moderate
March Weather7°C (46°F)94 mm (3.7 inches)70%high
April Weather12°C (54°F)81 mm (3.2 inches)73%very high
May Weather18°C (65°F)217 mm (8.6 inches)82%very high
June Weather25°C (77°F)112 mm (4.4 inches)82%extreme
July Weather27°C (80°F)76 mm (3.0 inches)81%extreme
August Weather25°C (77°F)119 mm (4.7 inches)78%very high
September Weather22°C (72°F)83 mm (3.3 inches)71%very high
October Weather13°C (56°F)117 mm (4.6 inches)71%high
November Weather6°C (43°F)38 mm (1.5 inches)81%moderate
December Weather2°C (37°F)32 mm (1.2 inches)84%moderate

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