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September Weather in Hatfield, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Hatfield, United Kingdom hovers around 14°C (58°F). Temperatures can swing from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), offering quite the range for any outdoor plans. Expect 56 mm (2.2 in) of precipitation spread over about 11 days, and be prepared for high humidity levels at 85%.

September Temperature in Hatfield

In September in Hatfield, the average temperature is 14°C (58°F). The maximum can reach 29°C (84°F), while the minimum can drop to as low as 4°C (40°F). This makes it a great time for travelers to enjoy a mix of warm and cool weather while exploring the area.

September Weather in Hatfield: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Hatfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hatfield, September typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (84°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec414245485460636358524642
Data source: Temperature data for Hatfield generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Hatfield

In Hatfield in September, the precipitation amount is 56 mm (2.2 in) over the course of 11 days.

September Precipitation Trends in Hatfield

The chart displays monthly precipitation patterns in Hatfield, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Hatfield, September typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec476361366678797856786272
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hatfield

In Hatfield in September, humidity is 85%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket wrapping around you, making even short walks feel heavy and exhausting for traveling.

September Average Humidity in Hatfield

This chart illustrates the average monthly humidity levels in Hatfield, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Hatfield is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%80%81%76%77%85%90%92%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hatfield

In Hatfield in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Hatfield.

Maximum UV Index Levels in Hatfield for September

The chart shows the monthly maximum UV Index (UVI) for Hatfield in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Hatfield typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578875321
Data source: Hatfield September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Hatfield Compares to Other Months

Weather in Hatfield varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hatfield, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Hatfield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)47 mm (1.9 inches)90%low
February Weather6°C (43°F)63 mm (2.5 inches)88%low
March Weather7°C (45°F)61 mm (2.4 inches)86%moderate
April Weather9°C (48°F)36 mm (1.4 inches)84%moderate
May Weather12°C (54°F)65 mm (2.6 inches)80%high
June Weather15°C (60°F)78 mm (3.1 inches)81%very high
July Weather17°C (64°F)79 mm (3.1 inches)76%very high
August Weather17°C (63°F)78 mm (3.1 inches)77%high
September Weather14°C (58°F)56 mm (2.2 inches)85%moderate
October Weather11°C (53°F)78 mm (3.1 inches)90%moderate
November Weather8°C (46°F)62 mm (2.4 inches)92%low
December Weather6°C (42°F)72 mm (2.8 inches)90%low

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