Rathmullan Weather in September

September in Rathmullan brings moderate temperatures, with daytime highs of 17°C (63°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 95 mm (3.7 in), so pack an umbrella.

Rainfall in Rathmullan in September

Rain is expected on roughly 21 days, totalling around 95 mm (3.7 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Rathmullan in September

In September, Rathmullan gets moderate temperatures, with highs of 17°C (63°F). Nights cool to around 10°C (50°F). The difference between afternoon and evening temperatures is usually noticeable. With lows of 10°C (50°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Rathmullan in September

You can expect a moderate amount of sunlight, with approximately 118 hours. This means a pleasant mix of sun and overcast.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Rathmullan's climate page.

Rathmullan Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 71%  

Precipitation 95 mm (3.7 in)  

Rainy days 21 days  

Sunshine 118 hours *  

Percentage Sunshine *  

* Data from: Derry, Ireland (18 KM, 11 Miles).

What to Wear in Rathmullan 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Rathmullan in September

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

Swimming

6/10

Cycling

6/10

Walking

6/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Rathmullan's climate page.

More climate data for Rathmullan

Temperature Rainfall Sunshine

See the full Rathmullan climate overview or explore weather in Ireland.