Last updated: June 24, 2025
In Westphalia, United States, the average temperature in September is a mild 18°C (65°F). However, temperatures can vary significantly, with a minimum of 1°C (34°F) and a peak of up to 35°C (95°F). During this month, expect about 109 mm (4.3 in) of precipitation over approximately 10 days, contributing to an average humidity of 80%.
In September in Westphalia, the average temperature is 18°C (65°F). Maximums can reach 35°C (95°F), while minimums can be as low as 1°C (34°F). This diverse temperature range makes Westphalia an ideal destination for travelers looking to experience both warm days and cooler nights.
In Westphalia in September, the precipitation amount is 109 mm (4.3 in) spread over 10 days.
In Westphalia in September, humidity is 80%. With an average temperature of 18°C (65°F), this humidity feels like wandering through a warm, damp blanket, making every step slightly heavy and resulting in a constant sheen of sweat, which can be both refreshing and exhausting for travelers.
In Westphalia 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 Westphalia.
UV Risk Categories
Weather in Westphalia varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Westphalia, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 64 mm (2.5 inches) | 88% | low |
| February Weather | -3°C (27°F) | 65 mm (2.6 inches) | 87% | moderate |
| March Weather | 2°C (37°F) | 63 mm (2.5 inches) | 85% | moderate |
| April Weather | 8°C (46°F) | 87 mm (3.4 inches) | 86% | very high |
| May Weather | 15°C (60°F) | 125 mm (4.9 inches) | 80% | very high |
| June Weather | 21°C (70°F) | 117 mm (4.6 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 71 mm (2.8 inches) | 80% | very high |
| August Weather | 22°C (72°F) | 64 mm (2.5 inches) | 80% | very high |
| September Weather | 18°C (65°F) | 109 mm (4.3 inches) | 80% | high |
| October Weather | 11°C (53°F) | 123 mm (4.8 inches) | 84% | moderate |
| November Weather | 3°C (38°F) | 63 mm (2.5 inches) | 89% | moderate |
| December Weather | 0°C (32°F) | 62 mm (2.5 inches) | 86% | low |