Londonderry Weather in September

In Londonderry, September brings pleasant daytime temperatures around 21°C (70°F), with nights cooling to 8°C (46°F). Expect quite a bit of rainfall this month.

Rainfall in Londonderry in September

Historically, the month has about 10 days of rain, averaging 94 mm (3.7 in) in total. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Londonderry in September

September is one of the better months to visit Londonderry. Expect 21°C (70°F) during the day and 8°C (46°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Londonderry.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Londonderry's climate page.

Londonderry Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 34%  

Precipitation 94 mm (3.7 in)  

Rainy days 10 days  

What to Wear in Londonderry in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags.

What To Do in Londonderry in September

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

Cycling

9/10

Walking

9/10

Camping

4/10

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 the United States of America, check out our Londonderry's climate page.

More climate data for Londonderry

Temperature Rainfall

See the full Londonderry climate overview or explore weather in the United States of America.