Knock weather in September (Mayo, Ireland)

Planning a trip to Knock in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

In September, Knock typically experiences moderate temperatures and moderate rainfall. Daytime temperatures hover around 18°C, while nights can cool down to about 10°C.

Knock in September usually receives moderate rainfall, averaging around 87 mm for the month. It's the month receiving the least amount of rain. As the days go by, you can expect fewer clouds and less precipitation. This makes it an ideal time for outdoor activities and events that might be disrupted by wetter conditions in other months. Delving into the climate records from the past 30 years, one can predict that nearly 20 days of the month will see rainfall.

The area sees fewer sunny days, with a projection of about 93 hours of sunshine. This reduced sunlight makes it ideal for those who prefer cooler, overcast conditions over bright sunny days.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Knock. June and September typically offer the best circumstances. While January, February, November and December tend to showcase less optimal conditions.

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

 

Knock, monthly averages in September

Min Temperature 10°C  

Max Temperature 18°C  

Chance of Rain 68%  

Precipitation 87 mm  

Rainy days 20 days  

Humidity 83% *  

Windspeed 14 km/h *  

Sunshine 93 hours *  

Percentage Sunshine 26% *  

* Data from: Claremorris, Ireland (9 KM, 5 Miles).

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.

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

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 Knock in September?

For visitors traveling to Knock, 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.

What To Do

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

Swimming

4/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Knock.

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.