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September Weather in Southport, United States

Last updated: June 24, 2025

In Southport, United States, the average temperature in September is a comfortable 17°C (62°F). You can expect some variation, with a minimum of 9°C (48°F) and a maximum reaching 23°C (74°F). Be prepared for a bit of rain, as the area receives an average precipitation of 81 mm (3.2 in) over about 8 days. With an average humidity of 80%, it's a great time to enjoy the lush surroundings!

September Temperature in Southport

In September in Southport, the average temperature is 17°C (62°F). Maximums can reach 23°C (74°F), and minimums can be as low as 9°C (48°F). This makes Southport a pleasant destination to explore with comfortable temperatures, perfect for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in Southport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Southport, September typically has an average temperature of 17°C (62°F), with highs reaching up to 23°C (74°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec303134425059666762544335
Data source: Temperature data for Southport 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 Southport

In Southport in September, the precipitation amount is 81 mm (3.2 in) over the course of 8 days.

September Precipitation Trends in Southport

The chart displays monthly precipitation patterns in Southport, 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 Southport, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec96988513982711007181150122137
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Southport

In Southport in September, humidity is 80%. With an average temperature of 17°C (62°F), this humidity feels like a heavy blanket wrapping around you, making travel sticky and uncomfortable, and often leaving you longing for a refreshing breeze.

September Average Humidity in Southport

This chart illustrates the average monthly humidity levels in Southport, 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 Southport is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%84%79%79%86%85%83%80%77%80%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Southport

In Southport in September, 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 Southport.

Maximum UV Index Levels in Southport for September

The chart shows the monthly maximum UV Index (UVI) for Southport 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 Southport typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Southport 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 Southport Compares to Other Months

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

This table compares monthly weather conditions in Southport, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)96 mm (3.8 inches)85%low
February Weather0°C (31°F)98 mm (3.8 inches)86%moderate
March Weather1°C (35°F)85 mm (3.3 inches)84%moderate
April Weather6°C (43°F)139 mm (5.5 inches)79%high
May Weather10°C (50°F)82 mm (3.2 inches)79%very high
June Weather15°C (59°F)71 mm (2.8 inches)86%very high
July Weather19°C (66°F)100 mm (3.9 inches)85%very high
August Weather20°C (67°F)71 mm (2.8 inches)83%very high
September Weather17°C (62°F)81 mm (3.2 inches)80%high
October Weather12°C (55°F)150 mm (5.9 inches)77%moderate
November Weather6°C (44°F)122 mm (4.8 inches)80%moderate
December Weather1°C (35°F)137 mm (5.4 inches)81%low

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