ClimateForecastSeptemberOctober >>

September Rainfall Precipitation in Londonderry County

Londonderry County is a region in the United Kingdom. In September precipitation ranges from moderate in Upperlands with 84 mm of rainfall to high in Portstewart with 107 mm of rainfall.

Where and how much does it rain in Londonderry County in September?

Find the average total precipitation in September for the most popular destinations in Londonderry County on the map below. Click on a destination dot for more detailed information.

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Legend heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm precipitation. High: 90 mm to 160 mm. Moderate: 30 mm to 90 mm. Low: 5 mm to 30 mm.

  • How much rainfall does Londonderry County receive in September?
  • The September weather in Londonderry usually sees a balance of rain and sunshine, with typical rainfall measurements reaching about 89 mm.

  • What is the wettest city in September in Londonderry County?
  • In our records, Portstewart stands out as having an average precipitation level of 107 mm, making it the wettest location.

  • What is the driest city in September in Londonderry County?
  • Among all locations in our dataset, Upperlands has the lowest average precipitation at 84 mm.

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