Knock
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Knock Weather in September

September in Knock brings moderate temperatures around 18°C (64°F) during the day, dropping to 10°C (50°F) at night, with the driest conditions of the year.

Rainfall in Knock in September

With the driest weather of the year, this month is ideal for outdoor fun. Typically, about 20 days will experience rainfall, with an average of 87 mm (3.4 in) for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Knock in September

In September, Knock sees moderate temperatures, with highs of 18°C (64°F). Nights drop to around 10°C (50°F). Conditions are often most pleasant around the middle of the day. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Knock in September

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 overcast conditions over bright sunny days.

Wind Speed in Knock in September

In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

Knock Temperature in September

Min Temperature
10°C (50°F)
Max Temperature
18°C (64°F)
Chance of Rain
68%
Precipitation
87 mm (3.4 in)
Rainy days
20 days
Humidity
83% *
Windspeed
4 m/s (8 knots) *
Sunshine
93 hours *
Percentage Sunshine
26% *
* Data from: Claremorris, Ireland (9 KM, 5 Miles).

Knock Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Knock - and find the best time to visit.

Best Places in Ireland in September

Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Knock in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Knock in September

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

  • Swimming
    4/10
  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Knock 3-Day Forecast

More climate data for Knock

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.