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September Weather in Haverhill, United Kingdom

Last updated: August 27, 2025

In Haverhill, United Kingdom, the average temperature in September hovers around 15°C (59°F). During this time, temperatures can dip as low as 3°C (38°F) and soar to a maximum of 27°C (81°F). Expect 54 mm (2.1 in) of precipitation spread over 11 days, and experience a comfortable average humidity of 80%.

September Temperature in Haverhill

In September in Haverhill, the average temperature is 15°C (59°F), with a maximum that can reach 27°C (81°F) and a minimum as low as 3°C (38°F). This makes it an ideal time for travelers who enjoy mild weather and the opportunity to explore both warm and cooler conditions.

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

The chart illustrates September temperature patterns in Haverhill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haverhill, September typically has an average temperature of 15°C (59°F), with highs reaching up to 27°C (81°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245485461646459534643
Data source: Temperature data for Haverhill 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 Haverhill

In Haverhill in September, the precipitation amount is 54 mm (2.1 in), occurring over the course of 11 days.

September Precipitation Trends in Haverhill

The chart displays monthly precipitation patterns in Haverhill, 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 Haverhill, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec525253306673657754834685
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Haverhill

In Haverhill in September, humidity is 80%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly uncomfortable and necessitating frequent breaks to stay hydrated.

September Average Humidity in Haverhill

This chart illustrates the average monthly humidity levels in Haverhill, 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 Haverhill is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Haverhill

In Haverhill 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 Haverhill.

Maximum UV Index Levels in Haverhill for September

The chart shows the monthly maximum UV Index (UVI) for Haverhill 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 Haverhill typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Haverhill 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 Haverhill Compares to Other Months

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

This table compares monthly weather conditions in Haverhill, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)52 mm (2.0 inches)91%low
February Weather6°C (43°F)52 mm (2.0 inches)89%low
March Weather7°C (45°F)53 mm (2.1 inches)86%moderate
April Weather9°C (49°F)30 mm (1.2 inches)85%moderate
May Weather12°C (55°F)66 mm (2.6 inches)82%high
June Weather16°C (61°F)73 mm (2.9 inches)81%very high
July Weather18°C (65°F)65 mm (2.6 inches)76%very high
August Weather18°C (64°F)77 mm (3.0 inches)73%high
September Weather15°C (59°F)54 mm (2.1 inches)80%moderate
October Weather12°C (53°F)83 mm (3.3 inches)89%moderate
November Weather8°C (46°F)46 mm (1.8 inches)92%low
December Weather6°C (43°F)85 mm (3.3 inches)92%low

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