ClimateForecastSeptemberOctober >>

Weather in September in Londonderry County

Planning a getaway to Londonderry County this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What is the weather like in Londonderry County in September?

Londonderry County is a region in the United Kingdom. September in Londonderry County generally has mild temperatures, with precipitation levels ranging from moderate to high.

Temperatures

You can expect mild maximum daytime temperatures of around 17°C and nighttime temperatures around 10°C in Londonderry.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Upperlands with an average of 84 mm to high rainfall in Portstewart with 107 mm.

Average sunshine

Most cities enjoy a balanced amount of sunshine, with around 118 hours of sunlight anticipated in Londonderry. This ensures the days are neither too dim nor excessively sunny.

To learn more about the conditions in specific areas of Londonderry County in September, check out the map below. For more details on the yearly weather, visit our Londonderry County climate page.

Where to go in Londonderry County in September

Find more information for the most popular destinations in the Londonderry County on the map below. Click on a destination dot for more detailes.

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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).

Popular destinations

What is the weather like in September for the 5 most popular destinations in Londonderry County?

Londonderry

In September Londonderry generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Londonderry
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
12°C 
140 hours 
108 mm 
20 days 
17°C 
10°C 
118 hours 
89 mm 
21 days 
October   >> October
>>  
14°C 
8°C 
103 hours 
97 mm 
23 days 
Climate in Londonderry

Portstewart

In September Portstewart generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 12°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Portstewart
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
17°C 
13°C 
140 hours 
111 mm 
20 days 
16°C 
12°C 
118 hours 
107 mm 
21 days 
October   >> October
>>  
14°C 
10°C 
103 hours 
137 mm 
22 days 
Climate in Portstewart

Coleraine

In September Coleraine generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 11°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Coleraine
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
17°C 
13°C 
140 hours 
109 mm 
20 days 
16°C 
11°C 
118 hours 
102 mm 
20 days 
October   >> October
>>  
14°C 
9°C 
103 hours 
128 mm 
22 days 
Climate in Coleraine

Dungiven

In September Dungiven generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Dungiven
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
12°C 
140 hours 
102 mm 
20 days 
17°C 
10°C 
118 hours 
88 mm 
21 days 
October   >> October
>>  
14°C 
8°C 
103 hours 
102 mm 
22 days 
Climate in Dungiven

Limavady

In September Limavady generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Limavady
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
12°C 
140 hours 
106 mm 
20 days 
17°C 
11°C 
118 hours 
95 mm 
21 days 
October   >> October
>>  
14°C 
8°C 
103 hours 
114 mm 
22 days 
Climate in Limavady

Is your destination not in the list? Have a look at other destinations in Londonderry County, in the United Kingdom.

Is September the best time to visit Londonderry County?

We consider September to be one of the best times to travel to Londonderry County. Typically, the climate in Londonderry is tolerable. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Londonderry County is in May, July, August, September and October with generally tolerable weather in Londonderry. On the other hand, the weather in January, February and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Londonderry County. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.