Dublin County weather in September
Thinking about venturing to Dublin County this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:
What is the weather like in Dublin County in September?
Dublin County is a region in Ireland. September in Dublin County generally has moderate temperatures, with moderate precipitation.
You can expect moderate maximum daytime temperatures of around 18°C and nighttime temperatures around 11°C in Dublin.
In September, precipitation varies across different areas. From moderate rainfall in Lucan with an average of 73 mm to moderate rainfall in Dun Laoghaire with 80 mm. Most areas experience a moderate amount of sunshine, with approximately 128 hours of sunlight expected in Dublin. This makes it neither too gloomy nor overly bright.
To learn more about the conditions in specific areas of Dublin County in September, check out the map below. For more details on the yearly weather, visit our Dublin County climate page.
Where to go in Dublin County in September
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Popular destinations in Dublin County
What is the weather like in September for the 5 most popular destinations in Dublin County?
Average weather in Dublin
In September Dublin generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are pleasant that month.
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Average weather in Swords
In September Swords generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are pleasant that month.
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Average weather in Dun Laoghaire
In September Dun Laoghaire generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Rathgar
In September Rathgar generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are pleasant that month.
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Average weather in Cloghran
In September Cloghran generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are pleasant that month.
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Is your destination not in the list? Have a look at other destinations in Dublin County, in Ireland.
Is September the best time to visit Dublin County?
In our opinion, September is a good time to visit Dublin County with overall pleasant weather in Dublin. It's worth noting that weather conditions might differ depending on the location you visit.
On average, the best time to visit Dublin County is in July and August with generally perfect weather in Dublin. On the other hand, the months of January, February and December tend to have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Dublin County.
Interested in the weather conditions in a specific month? Select the month below.
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.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.