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September Weather in Seaham, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Seaham, United Kingdom hovers around 14°C (57°F). Expect a refreshing range, with minimums dipping to 6°C (43°F) and maximums peaking at 24°C (76°F). During this month, precipitation averages 68 mm (2.7 in) spread over about 12 days, creating a humid atmosphere with an average humidity of 87%. Perfect weather for cozying up or exploring the lush surroundings!

September Temperature in Seaham

In September in Seaham, the average temperature is 14°C (57°F). Maximum temperatures can reach 24°C (76°F), while minimums can drop as low as 6°C (43°F). This mild climate makes Seaham an ideal destination for travelers seeking comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Seaham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seaham, September typically has an average temperature of 14°C (57°F), with highs reaching up to 24°C (76°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec414244465257616157524743
Data source: Temperature data for Seaham 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 Seaham

In Seaham in September, the precipitation amount is 68 mm (2.7 in) over the course of 12 days.

September Precipitation Trends in Seaham

The chart displays monthly precipitation patterns in Seaham, 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 Seaham, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec577762355385758368907278
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Seaham

In Seaham in September humidity is 87%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making every breath feel heavy and sticky, which can be quite challenging for travelers exploring the city.

September Average Humidity in Seaham

This chart illustrates the average monthly humidity levels in Seaham, 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 Seaham is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%86%84%83%85%83%82%87%89%90%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Seaham

In Seaham 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 Seaham.

Maximum UV Index Levels in Seaham for September

The chart shows the monthly maximum UV Index (UVI) for Seaham 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 Seaham typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568865321
Data source: Seaham 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 Seaham Compares to Other Months

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

This table compares monthly weather conditions in Seaham, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)57 mm (2.2 inches)89%low
February Weather6°C (43°F)77 mm (3.0 inches)87%low
March Weather7°C (44°F)62 mm (2.4 inches)85%moderate
April Weather8°C (47°F)35 mm (1.4 inches)84%moderate
May Weather11°C (52°F)53 mm (2.1 inches)83%high
June Weather14°C (58°F)85 mm (3.3 inches)85%very high
July Weather16°C (61°F)75 mm (3.0 inches)83%very high
August Weather16°C (61°F)83 mm (3.3 inches)82%high
September Weather14°C (57°F)68 mm (2.7 inches)87%moderate
October Weather11°C (52°F)90 mm (3.5 inches)89%moderate
November Weather8°C (47°F)72 mm (2.8 inches)90%low
December Weather6°C (43°F)78 mm (3.1 inches)88%low

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