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August Weather in Roundup, United States

Last updated: June 24, 2025

In August, the average temperature in Roundup, United States is a pleasant 22°C (72°F). However, be prepared for a temperature range that can dip to a minimum of 8°C (46°F) and soar to a maximum of 39°C (102°F). Expect 20 mm (0.8 in) of rain over approximately 5 days, with an average humidity level of 76%, adding a touch of tropical feel to your visit.

August Temperature in Roundup

In August in Roundup, the average temperature is 22°C (72°F), with maximums reaching up to 39°C (102°F) and minimums dropping as low as 8°C (46°F). It's an ideal time for travelers to pack both light clothing for the warm days and a jacket for the cooler evenings.

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

The chart illustrates August temperature patterns in Roundup, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roundup, August typically has an average temperature of 22°C (72°F), with highs reaching up to 39°C (102°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec261935435466747261453629
Data source: Temperature data for Roundup 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 Roundup

In Roundup in August, the precipitation amount is 20 mm (0.8 in) over a period of 5 days.

August Precipitation Trends in Roundup

The chart displays monthly precipitation patterns in Roundup, 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 Roundup, August typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec193627616569232038342326
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Roundup

In Roundup in August humidity is 76%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as you navigate through the thick, saturated air.

August Average Humidity in Roundup

This chart illustrates the average monthly humidity levels in Roundup, 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 Roundup is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%85%77%72%75%78%79%76%67%69%78%85%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Roundup

In Roundup in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Roundup.

Maximum UV Index Levels in Roundup for August

The chart shows the monthly maximum UV Index (UVI) for Roundup 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 Roundup typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec25599101098532
Data source: Roundup 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 Roundup Compares to Other Months

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

This table compares monthly weather conditions in Roundup, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)19 mm (0.7 inches)81%low
February Weather-7°C (20°F)36 mm (1.4 inches)85%moderate
March Weather2°C (35°F)27 mm (1.1 inches)77%moderate
April Weather6°C (43°F)61 mm (2.4 inches)72%very high
May Weather12°C (55°F)65 mm (2.6 inches)75%very high
June Weather19°C (66°F)69 mm (2.7 inches)78%very high
July Weather23°C (75°F)22 mm (0.9 inches)79%very high
August Weather22°C (72°F)20 mm (0.8 inches)76%very high
September Weather16°C (62°F)38 mm (1.5 inches)67%very high
October Weather7°C (46°F)34 mm (1.3 inches)69%moderate
November Weather2°C (37°F)23 mm (0.9 inches)78%moderate
December Weather-2°C (29°F)26 mm (1.0 inches)85%low

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