Last updated: June 24, 2025
In Newberg, United States, the average temperature in September hovers around 18°C (65°F), with fluctuations ranging from a cool 5°C (42°F) to a warm 35°C (96°F). Expect around 57 mm (2.3 in) of precipitation spread over approximately 7 days, and enjoy a comfortable average humidity of 71% throughout the month.
In September in Newberg, the average temperature is 18°C (65°F). Maximums can reach 35°C (96°F), and minimums can be as low as 5°C (42°F). This makes it an ideal time for travelers to enjoy a mix of warm days and cooler evenings.
In Newberg in September, the precipitation amount is 57 mm (2.3 in) over a span of 7 days.
In Newberg in September humidity is 71%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making it a bit sticky and muggy, which can be slightly uncomfortable for traveling, especially if you're engaging in outdoor activities or exploring the city on foot.
In Newberg in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Newberg.
UV Risk Categories
Weather in Newberg varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Newberg, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 6°C (43°F) | 158 mm (6.2 inches) | 85% | low |
February Weather | 5°C (42°F) | 163 mm (6.4 inches) | 84% | moderate |
March Weather | 8°C (47°F) | 121 mm (4.8 inches) | 85% | moderate |
April Weather | 11°C (52°F) | 105 mm (4.1 inches) | 83% | high |
May Weather | 15°C (58°F) | 48 mm (1.9 inches) | 83% | very high |
June Weather | 18°C (65°F) | 39 mm (1.5 inches) | 83% | very high |
July Weather | 21°C (71°F) | 4 mm (0.2 inches) | 82% | very high |
August Weather | 22°C (71°F) | 4 mm (0.2 inches) | 74% | very high |
September Weather | 18°C (65°F) | 57 mm (2.3 inches) | 71% | high |
October Weather | 12°C (54°F) | 91 mm (3.6 inches) | 81% | moderate |
November Weather | 8°C (47°F) | 144 mm (5.7 inches) | 87% | moderate |
December Weather | 5°C (42°F) | 182 mm (7.2 inches) | 87% | low |