Last updated: June 24, 2025
In September, the average temperature in Johns Creek, United States hovers around 23°C (74°F), making it a pleasant time to visit. Expect temperatures to range from a minimum of 10°C (50°F) to a maximum of 35°C (96°F). However, be prepared for some rain, as the area receives about 115 mm (4.5 in) of precipitation over 10 days. With an average humidity of 82%, it's advisable to stay hydrated and cool during your adventures!
In September in Johns Creek, the average temperature is 23°C (74°F). Maximum temperatures can reach up to 35°C (96°F), while minimum temperatures can drop as low as 10°C (50°F). This makes Johns Creek a pleasant destination for travelers seeking warm days and cool nights.
In Johns Creek in September, the precipitation amount is 115 mm (4.5 in) over a span of 10 days.
In Johns Creek in September, humidity is 82%. With an average temperature of 23°C (74°F), this humidity feels like you are walking through a warm, damp blanket, making travel a bit uncomfortable and sticky as you navigate the air thick with moisture.
In Johns Creek in September, 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 Johns Creek.
UV Risk Categories
Weather in Johns Creek varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Johns Creek, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 7°C (45°F) | 112 mm (4.4 inches) | 86% | moderate |
February Weather | 10°C (50°F) | 160 mm (6.3 inches) | 84% | high |
March Weather | 13°C (56°F) | 142 mm (5.6 inches) | 83% | very high |
April Weather | 16°C (62°F) | 129 mm (5.1 inches) | 81% | very high |
May Weather | 21°C (71°F) | 116 mm (4.6 inches) | 81% | extreme |
June Weather | 24°C (76°F) | 134 mm (5.3 inches) | 81% | extreme |
July Weather | 26°C (79°F) | 118 mm (4.7 inches) | 83% | extreme |
August Weather | 25°C (78°F) | 156 mm (6.1 inches) | 81% | very high |
September Weather | 23°C (74°F) | 115 mm (4.5 inches) | 82% | very high |
October Weather | 18°C (65°F) | 140 mm (5.5 inches) | 78% | very high |
November Weather | 11°C (52°F) | 83 mm (3.3 inches) | 86% | high |
December Weather | 9°C (48°F) | 141 mm (5.5 inches) | 89% | moderate |