Last updated: June 24, 2025
In September, the average temperature in Manchester, United States hovers around 25°C (77°F), offering a pleasant climate for outdoor activities. However, be prepared for temperature fluctuations, as it can dip to a chilly 12°C (54°F) or rise to a sweltering 37°C (98°F). Rain may make an appearance, with precipitation totaling 103 mm (4.0 in) over approximately 10 days during the month. It's also worth noting that the average humidity sits at a comfortable 82%, ensuring a warm yet enjoyable atmosphere.
In September in Manchester, the average temperature is 25°C (77°F). Maximums can reach 37°C (98°F) and minimums can be as low as 12°C (54°F). It's an ideal time for travelers seeking warm weather while also enjoying some cooler evenings.
In Manchester in September, the precipitation amount is 103 mm (4.0 in) over a span of 10 days.
In Manchester in September, humidity is 82%. With an average temperature of 25°C (77°F), this humidity feels like a warm, oppressive blanket enveloping you as you explore, making every step feel more laborious and prompting the need for frequent hydration breaks.
In Manchester 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 Manchester.
UV Risk Categories
Weather in Manchester varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Manchester, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 9°C (49°F) | 111 mm (4.4 inches) | 86% | moderate |
| February Weather | 12°C (55°F) | 116 mm (4.5 inches) | 84% | high |
| March Weather | 15°C (59°F) | 87 mm (3.4 inches) | 83% | very high |
| April Weather | 18°C (65°F) | 106 mm (4.2 inches) | 81% | very high |
| May Weather | 23°C (73°F) | 95 mm (3.7 inches) | 81% | extreme |
| June Weather | 25°C (78°F) | 118 mm (4.7 inches) | 81% | extreme |
| July Weather | 27°C (81°F) | 110 mm (4.3 inches) | 83% | extreme |
| August Weather | 26°C (80°F) | 140 mm (5.5 inches) | 81% | extreme |
| September Weather | 25°C (77°F) | 103 mm (4.0 inches) | 82% | very high |
| October Weather | 20°C (69°F) | 116 mm (4.5 inches) | 78% | very high |
| November Weather | 13°C (55°F) | 75 mm (3.0 inches) | 86% | high |
| December Weather | 10°C (51°F) | 127 mm (5.0 inches) | 89% | moderate |