nomadseason

August Weather in Johnson City, United States

Last updated: June 24, 2025

In Johnson City, United States, the average temperature in August is a warm 29°C (84°F). Expect a range that can dip to a refreshing 18°C (65°F) and soar up to a sizzling 39°C (103°F). During this month, anticipate about 81 mm (3.2 in) of rainfall spread over 8 days, contributing to an average humidity of 63%. Enjoy the vibrant climate!

August Temperature in Johnson City

In August in Johnson City, the average temperature is 29°C (84°F). Maximums can reach 39°C (103°F) and minimums can be as low as 18°C (65°F). Be prepared for warm days and mild evenings, making it an ideal time for outdoor activities and exploring the local attractions.

August Weather in Johnson City: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Johnson City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Johnson City, August typically has an average temperature of 29°C (84°F), with highs reaching up to 39°C (103°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec505262677581848478695954
Data source: Temperature data for Johnson City generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Johnson City

In Johnson City in August, the precipitation amount is 81 mm (3.2 in) over the course of 8 days.

August Precipitation Trends in Johnson City

The chart displays monthly precipitation patterns in Johnson City, 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 Johnson City, August typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec4662657114073578199953346
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Johnson City

In Johnson City in August humidity is 63%. With an average temperature of 29°C (84°F), this humidity feels like a warm embrace, making travel a bit sticky but still manageable; the air is heavy and richly scented, immersing you in the vibrant atmosphere of the surroundings.

August Average Humidity in Johnson City

This chart illustrates the average monthly humidity levels in Johnson City, 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 Johnson City is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Johnson City

In Johnson City 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 Johnson City.

Maximum UV Index Levels in Johnson City for August

The chart shows the monthly maximum UV Index (UVI) for Johnson City 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 Johnson City typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111112121111965
Data source: Johnson City 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 Johnson City Compares to Other Months

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

This table compares monthly weather conditions in Johnson City, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)46 mm (1.8 inches)78%moderate
February Weather11°C (52°F)62 mm (2.4 inches)78%high
March Weather17°C (62°F)65 mm (2.6 inches)77%very high
April Weather20°C (67°F)71 mm (2.8 inches)78%extreme
May Weather24°C (75°F)140 mm (5.5 inches)82%extreme
June Weather27°C (81°F)73 mm (2.9 inches)78%extreme
July Weather29°C (84°F)57 mm (2.2 inches)69%extreme
August Weather29°C (84°F)81 mm (3.2 inches)63%extreme
September Weather26°C (78°F)99 mm (3.9 inches)66%extreme
October Weather20°C (69°F)95 mm (3.7 inches)73%very high
November Weather15°C (59°F)33 mm (1.3 inches)84%high
December Weather12°C (54°F)46 mm (1.8 inches)87%moderate

Compare Johnson City's Climate with Cities Worldwide