Last updated: June 24, 2025
In September, the average temperature in Hertford, United States is a pleasant 24°C (75°F). Visitors can expect a minimum of 11°C (52°F) and a maximum of 35°C (95°F). During this month, 130 mm (5.1 in) of precipitation typically falls over 12 days, while the average humidity hovers around a comfortable 78%. Whether you're exploring the sights or enjoying the local cuisine, be prepared for a mix of weather conditions!
In September, in Hertford, the average temperature is 24°C (75°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop to as low as 11°C (52°F). This makes Hertford a pleasant destination for travelers seeking warm weather with a variety of temperature experiences.
In Hertford in September, the precipitation amount is 130 mm (5.1 in) over a span of 12 days.
In Hertford in September humidity is 78%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket wrapping around you, making travel sticky and heavy but also inviting, as long as you're prepared with plenty of water and light clothing.
In Hertford 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 Hertford.
UV Risk Categories
Weather in Hertford varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hertford, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (44°F) | 93 mm (3.7 inches) | 84% | moderate |
| February Weather | 9°C (49°F) | 92 mm (3.6 inches) | 83% | high |
| March Weather | 11°C (52°F) | 71 mm (2.8 inches) | 82% | very high |
| April Weather | 16°C (62°F) | 94 mm (3.7 inches) | 81% | very high |
| May Weather | 21°C (70°F) | 129 mm (5.1 inches) | 80% | extreme |
| June Weather | 25°C (77°F) | 137 mm (5.4 inches) | 82% | very high |
| July Weather | 27°C (80°F) | 142 mm (5.6 inches) | 81% | extreme |
| August Weather | 26°C (79°F) | 188 mm (7.4 inches) | 81% | very high |
| September Weather | 24°C (75°F) | 130 mm (5.1 inches) | 78% | very high |
| October Weather | 19°C (66°F) | 82 mm (3.2 inches) | 80% | very high |
| November Weather | 12°C (53°F) | 83 mm (3.3 inches) | 84% | moderate |
| December Weather | 9°C (48°F) | 98 mm (3.9 inches) | 84% | moderate |