Cork weather in September (County Cork, Ireland)

Planning a trip to Cork in September? Check out this comprehensive weather guide.

In September, Cork typically experiences moderate temperatures and moderate rainfall. Throughout the daytime, temperatures often hover around 18°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 12°C.

Cork in September usually receives moderate rainfall, averaging around 77 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 17 days of the month will see rainfall.

The area experiences a moderate amount of sunshine, with approximately 128 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Cork. July, August and September typically offer the most agreeable circumstances. On the other hand, January, February and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Cork climate page with graphs.

 

Cork, monthly averages in September

Min TemperatureMin Temperature 12°C  
Max TemperatureMax Temperature 18°C  
Water TemperatureWater Temperature 15°C  
Chance of RainChance of Rain 57%  
PrecipitationPrecipitation 77 mm  
Rainy daysRainy days 17 days  
HumidityHumidity 75%  
WindspeedWindspeed 18 km/h  
SunshineSunshine 128 hours  
Percentage SunshinePercentage Sunshine 33%  

Where to go in Ireland in September

Find out more about the weather in Ireland in September and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Cork in September?

For visitors traveling to Cork, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes. With a water temperature of around 15°C there is no need to bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming
6/10
Cycling
6/10
Walking
6/10
Camping
8/10
Outdoor sports
9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Cork.

Our site offers climate and forecast data for every country in the world. Are you going to Ireland? On this website you can find 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.