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September Weather in Llandysul, United Kingdom

Last updated: August 27, 2025

In Llandysul, United Kingdom, the average temperature in September hovers around 14°C (57°F), with minimums dipping to 2°C (35°F) and maximums reaching up to 28°C (82°F). Prepare for a splash of rain, as precipitation typically amounts to 103 mm (4.0 in) over 14 days. Don't forget to brace for the average humidity of 79%, adding a touch of dampness to the air.

September Temperature in Llandysul

In September in Llandysul, the average temperature is 14°C (57°F). Maximums can reach 28°C (82°F), and minimums can drop as low as 2°C (35°F). It’s a great time for travelers to enjoy a mix of mild days and cooler evenings in Llandysul.

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

The chart illustrates September temperature patterns in Llandysul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Llandysul, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (82°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec424345485359616057524745
Data source: Temperature data for Llandysul 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 Llandysul

In Llandysul in September, the precipitation amount is 103 mm (4.0 in) over a span of 14 days.

September Precipitation Trends in Llandysul

The chart displays monthly precipitation patterns in Llandysul, 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 Llandysul, September typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec8712110960869584119103143131160
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Llandysul

In Llandysul in September humidity is 79%. With an average temperature of 14°C (57°F), this humidity feels like a warm, sticky embrace that can make even short strolls feel exhausting, creating a sense of heaviness in the air that might dampen your adventurous spirit while exploring.

September Average Humidity in Llandysul

This chart illustrates the average monthly humidity levels in Llandysul, 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 Llandysul is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Llandysul

In Llandysul in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Llandysul, you can refer to this Hourly UV Index in Llandysul.

Maximum UV Index Levels in Llandysul for September

The chart shows the monthly maximum UV Index (UVI) for Llandysul 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 Llandysul typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Llandysul 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 Llandysul Compares to Other Months

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

This table compares monthly weather conditions in Llandysul, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)87 mm (3.4 inches)88%low
February Weather6°C (43°F)121 mm (4.8 inches)88%low
March Weather7°C (45°F)109 mm (4.3 inches)86%moderate
April Weather9°C (49°F)60 mm (2.4 inches)84%moderate
May Weather12°C (53°F)86 mm (3.4 inches)80%high
June Weather15°C (59°F)95 mm (3.8 inches)80%very high
July Weather16°C (62°F)84 mm (3.3 inches)70%very high
August Weather16°C (61°F)119 mm (4.7 inches)73%high
September Weather14°C (57°F)103 mm (4.0 inches)79%high
October Weather11°C (52°F)142 mm (5.6 inches)89%moderate
November Weather8°C (47°F)131 mm (5.2 inches)90%low
December Weather7°C (45°F)160 mm (6.3 inches)89%low

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