nomadseason

September Weather in Hayle, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Hayle, United Kingdom hovers around 15°C (60°F). Expect a range where the minimum dips to 9°C (49°F) and the maximum can reach up to 25°C (77°F). During this time, anticipate approximately 73 mm (2.9 in) of precipitation spread over 13 days, accompanied by an average humidity level of 85%.

September Temperature in Hayle

In September in Hayle, the average temperature is 15°C (60°F). Maximums can reach 25°C (77°F) and minimums can be as low as 9°C (49°F). This mild weather makes Hayle an ideal destination for travelers seeking pleasant outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Hayle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayle, September typically has an average temperature of 15°C (60°F), with highs reaching up to 25°C (77°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec474748505459626260555149
Data source: Temperature data for Hayle generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Hayle

In Hayle in September, the precipitation amount is 73 mm (2.9 in) over the course of 13 days.

September Precipitation Trends in Hayle

The chart displays monthly precipitation patterns in Hayle, 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 Hayle, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec789287486482656473129113138
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Hayle

In Hayle in September, humidity is 85%. With an average temperature of 15°C (60°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat uncomfortable for travelers who may find themselves constantly seeking shade and hydration.

September Average Humidity in Hayle

This chart illustrates the average monthly humidity levels in Hayle, 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 Hayle is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%83%84%85%86%87%86%85%85%82%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hayle

In Hayle 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 Hayle, you can refer to this Hourly UV Index in Hayle.

Maximum UV Index Levels in Hayle for September

The chart shows the monthly maximum UV Index (UVI) for Hayle 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 Hayle typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224679876421
Data source: Hayle 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 Hayle Compares to Other Months

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

This table compares monthly weather conditions in Hayle, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)78 mm (3.1 inches)81%low
February Weather8°C (48°F)92 mm (3.6 inches)84%low
March Weather9°C (48°F)87 mm (3.4 inches)83%moderate
April Weather10°C (50°F)48 mm (1.9 inches)84%high
May Weather12°C (54°F)64 mm (2.5 inches)85%high
June Weather15°C (59°F)82 mm (3.2 inches)86%very high
July Weather17°C (62°F)65 mm (2.6 inches)87%very high
August Weather16°C (62°F)63 mm (2.5 inches)86%high
September Weather15°C (60°F)73 mm (2.9 inches)85%high
October Weather13°C (56°F)129 mm (5.1 inches)85%moderate
November Weather11°C (51°F)113 mm (4.4 inches)82%low
December Weather10°C (50°F)138 mm (5.4 inches)80%low

Compare Hayle's Climate with Cities Worldwide