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August Weather in Horncastle, United Kingdom

Last updated: August 27, 2025

In August, the average temperature in Horncastle, United Kingdom hovers around 17°C (63°F), with a minimum of 8°C (47°F) and a maximum reaching up to 30°C (86°F). Expect precipitation of about 80 mm (3.2 in) over approximately 13 days, contributing to an average humidity of 78%. Embrace the varying conditions this month brings!

August Temperature in Horncastle

In August in Horncastle, the average temperature is 17°C (63°F). The maximum can reach 30°C (86°F) while the minimum can be as low as 8°C (47°F). Travelers should pack layers to stay comfortable during their visit.

August Weather in Horncastle: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Horncastle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Horncastle, August typically has an average temperature of 17°C (63°F), with highs reaching up to 30°C (86°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245485359636358534642
Data source: Temperature data for Horncastle 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.

August Precipitation in Horncastle

In Horncastle in August, the precipitation amount is 80 mm (3.2 in) spread over 13 days.

August Precipitation Trends in Horncastle

The chart displays monthly precipitation patterns in Horncastle, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Horncastle, August typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec446057337280778164786071
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Horncastle

In Horncastle in August, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

August Average Humidity in Horncastle

This chart illustrates the average monthly humidity levels in Horncastle, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Horncastle is approximately 78%, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Horncastle

In Horncastle in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Horncastle.

Maximum UV Index Levels in Horncastle for August

The chart shows the monthly maximum UV Index (UVI) for Horncastle in August, 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 August, the maximum UV index in Horncastle typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Horncastle August 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 August Weather in Horncastle Compares to Other Months

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

This table compares monthly weather conditions in Horncastle, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)44 mm (1.7 inches)89%low
February Weather6°C (42°F)60 mm (2.3 inches)87%low
March Weather7°C (45°F)57 mm (2.2 inches)86%moderate
April Weather9°C (48°F)33 mm (1.3 inches)85%moderate
May Weather12°C (54°F)72 mm (2.8 inches)83%high
June Weather15°C (60°F)80 mm (3.2 inches)83%very high
July Weather17°C (64°F)77 mm (3.0 inches)79%very high
August Weather17°C (63°F)80 mm (3.2 inches)78%high
September Weather15°C (58°F)64 mm (2.5 inches)84%moderate
October Weather11°C (53°F)78 mm (3.1 inches)88%moderate
November Weather8°C (46°F)60 mm (2.3 inches)89%low
December Weather5°C (42°F)71 mm (2.8 inches)88%low

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