Last updated: June 24, 2025
In September, the average temperature in Salem Heights, United States hovers around 21°C (71°F). Expect a range where the minimum can dip to 7°C (45°F) and the maximum can climb to a scorching 35°C (95°F). With an average humidity of 73%, be prepared for a sultry feel. Additionally, you can expect about 91 mm (3.6 in) of precipitation spread over 8 days throughout the month.
In September in Salem Heights, the average temperature is 21°C (71°F). The maximum can reach 35°C (95°F), while the minimum can drop to as low as 7°C (45°F). This makes Salem Heights an ideal destination for travelers looking to enjoy a warm climate with refreshing cooler evenings.
In Salem Heights in September, the total precipitation amount is 91 mm (3.6 in) over the course of 8 days.
In Salem Heights in September humidity is 73%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities a bit uncomfortable, but with proper hydration and breaks in the shade, it’s still manageable for traveling.
In Salem Heights in September, 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 Salem Heights.
UV Risk Categories
Weather in Salem Heights varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Salem Heights, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 81 mm (3.2 inches) | 88% | moderate |
| February Weather | 3°C (38°F) | 112 mm (4.4 inches) | 88% | moderate |
| March Weather | 8°C (46°F) | 136 mm (5.3 inches) | 87% | high |
| April Weather | 12°C (55°F) | 129 mm (5.1 inches) | 85% | very high |
| May Weather | 19°C (66°F) | 132 mm (5.2 inches) | 81% | very high |
| June Weather | 23°C (74°F) | 148 mm (5.8 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 116 mm (4.6 inches) | 81% | very high |
| August Weather | 24°C (75°F) | 93 mm (3.7 inches) | 73% | very high |
| September Weather | 21°C (71°F) | 91 mm (3.6 inches) | 73% | very high |
| October Weather | 15°C (60°F) | 98 mm (3.9 inches) | 78% | high |
| November Weather | 7°C (44°F) | 96 mm (3.8 inches) | 89% | moderate |
| December Weather | 4°C (39°F) | 114 mm (4.5 inches) | 87% | moderate |