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August Weather in Roscommon, United States

Last updated: June 24, 2025

In August, the average temperature in Roscommon, United States hovers around 20°C (68°F), making it a pleasant time of year. Expect a minimum chill of 5°C (41°F) and highs reaching up to 32°C (90°F). During this month, you can anticipate about 90 mm (3.6 in) of precipitation over 11 days, contributing to a 75% average humidity that keeps the air refreshing and vibrant.

August Temperature in Roscommon

In August in Roscommon, the average temperature is 20°C (68°F). Maximums can reach 32°C (90°F), and minimums can dip as low as 5°C (41°F). This variety in temperatures makes it a great time for travelers to enjoy both warm days and cooler nights.

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

The chart illustrates August temperature patterns in Roscommon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roscommon, August typically has an average temperature of 20°C (68°F), with highs reaching up to 32°C (90°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec212130415565716861483427
Data source: Temperature data for Roscommon 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 Roscommon

In Roscommon in August, the precipitation amount is 90 mm (3.6 in) spread over 11 days.

August Precipitation Trends in Roscommon

The chart displays monthly precipitation patterns in Roscommon, 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 Roscommon, August typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec515254931071188790731186163
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Roscommon

In Roscommon in August, humidity is 75%. With an average temperature of 20°C (68°F), this humidity feels like a warm, muggy embrace that can leave travelers feeling sticky and exhausted.

August Average Humidity in Roscommon

This chart illustrates the average monthly humidity levels in Roscommon, 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 Roscommon is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%87%86%79%75%75%75%79%85%88%89%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Roscommon

In Roscommon in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Roscommon.

Maximum UV Index Levels in Roscommon for August

The chart shows the monthly maximum UV Index (UVI) for Roscommon 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 Roscommon typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910987532
Data source: Roscommon 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 Roscommon Compares to Other Months

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

This table compares monthly weather conditions in Roscommon, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)50 mm (2.0 inches)92%low
February Weather-6°C (21°F)52 mm (2.1 inches)91%moderate
March Weather-1°C (31°F)54 mm (2.1 inches)87%moderate
April Weather5°C (42°F)93 mm (3.7 inches)85%very high
May Weather13°C (56°F)107 mm (4.2 inches)79%very high
June Weather19°C (66°F)118 mm (4.6 inches)75%very high
July Weather21°C (71°F)87 mm (3.4 inches)75%very high
August Weather20°C (68°F)90 mm (3.6 inches)75%very high
September Weather16°C (61°F)73 mm (2.9 inches)79%high
October Weather9°C (49°F)118 mm (4.6 inches)85%moderate
November Weather1°C (35°F)61 mm (2.4 inches)88%moderate
December Weather-3°C (27°F)63 mm (2.5 inches)89%low

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