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County Antrim Ireland
Temperatures in September
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Temperature in County Antrim in September

County Antrim is a region in Ireland. September is generally a moderate month with maximum daytime temperatures around 17°C and nighttime temperatures around 11°C in Lisburn.

What is the temperature of the different cities in County Antrim in September?

Discover the typical September temperatures for the most popular locations of County Antrim on the map below. Detailed insights are just a click away.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • How much sun does County Antrim get in September?
    • Lisburn enjoys a balanced 109 hours of sunlight. This makes it neither too overcast nor too sunny.

  • What is the water's temperature in September?
    • The water temperature averages approximately 13°C in Belfast this month, so not the best month to swim.

    Interested in more climate information?

    We have much more information about the climate in County Antrim. Interested in the weather conditions in a specific month? Select the month below.

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    • Weather and climate has detailed information for every country in the world. Are you going to Ireland? Get detailed historical weather averages for many cities in Ireland.

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