Londonderry
Weather by month
Current –

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.

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

Londonderry Weather by Month

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

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America 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 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

Londonderry 3-Day Forecast

More climate data for Londonderry

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.