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October Weather in Harleston, United Kingdom

Last updated: August 27, 2025

In October, the average temperature in Harleston, United Kingdom hovers around 12°C (54°F), with a cozy minimum of 2°C (36°F) and a pleasant maximum of 23°C (74°F). Expect about 79 mm (3.1 in) of precipitation spread over 13 days, contributing to an average humidity of 88%, making this month a beautifully wet and refreshing experience!

October Temperature in Harleston

In October in Harleston, the average temperature is 12°C (54°F). The maximum can reach 23°C (74°F), and the minimum can be as low as 2°C (36°F). This pleasant climate makes Harleston a great destination for travelers looking to enjoy mild weather and outdoor activities.

October Weather in Harleston: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Harleston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harleston, October typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (74°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245485461646459534643
Data source: Temperature data for Harleston 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.

October Precipitation in Harleston

In Harleston in October, the precipitation amount is 79 mm (3.1 in) over a span of 13 days.

October Precipitation Trends in Harleston

The chart displays monthly precipitation patterns in Harleston, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Harleston, October typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec485555316170717959794580
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Harleston

In Harleston in October, humidity is 88%. With an average temperature of 12°C (54°F), this humidity feels like a thick, damp blanket, making traveling a bit uncomfortable as the air clings to your skin, causing you to sweat even in cooler weather.

October Average Humidity in Harleston

This chart illustrates the average monthly humidity levels in Harleston, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Harleston is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%86%85%83%83%80%78%84%88%89%88%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Harleston

In Harleston in October, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Harleston, you can check the information here.

Maximum UV Index Levels in Harleston for October

The chart shows the monthly maximum UV Index (UVI) for Harleston in October, 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 October, the maximum UV index in Harleston typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Harleston October 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 October Weather in Harleston Compares to Other Months

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

This table compares monthly weather conditions in Harleston, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)48 mm (1.9 inches)89%low
February Weather6°C (43°F)55 mm (2.2 inches)87%low
March Weather7°C (45°F)55 mm (2.2 inches)86%moderate
April Weather9°C (48°F)31 mm (1.2 inches)85%moderate
May Weather12°C (54°F)61 mm (2.4 inches)83%high
June Weather16°C (61°F)70 mm (2.7 inches)83%very high
July Weather18°C (64°F)71 mm (2.8 inches)79%very high
August Weather18°C (64°F)79 mm (3.1 inches)78%high
September Weather15°C (59°F)59 mm (2.3 inches)84%moderate
October Weather12°C (54°F)79 mm (3.1 inches)88%moderate
November Weather8°C (47°F)45 mm (1.8 inches)89%low
December Weather6°C (43°F)80 mm (3.1 inches)88%low

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