Londonderry County Weather in July

Average temperatures, rainfall, sunshine and the best places to visit in Londonderry County, the United Kingdom in July.

Thinking about venturing to Londonderry County, the United Kingdom this July and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Londonderry County in July

Londonderry County, the United Kingdom is a region in the United Kingdom. July in Londonderry County generally has temperatures that range from mild to pleasant, with precipitation levels ranging from moderate to high. The month of July is in the summer season.

Temperatures

The average highest temperatures fluctuate between mild in Portstewart at 16°C (61°F) to pleasant in Upperlands at 19°C (66°F). Nighttime temperatures generally drop to 12°C (54°F) in Upperlands and 12°C (54°F) in Portstewart. On average, July is the month with the highest temperature of the year in Londonderry County, the United Kingdom.

To learn more about the conditions in specific areas of Londonderry County, the United Kingdom, check out the map below.

Precipitation

In July, precipitation varies across different areas. From moderate rainfall in Upperlands with an average of 97 mm (3.8 in) to high rainfall in Londonderry with 107 mm (4.2 in).

Average sunshine

Sunshine is moderately available across various locations. In Londonderry, you can expect around 141 hours of sunlight in July, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore Londonderry County by month

Pick a month to see the average temperature, rainfall and sunshine in Londonderry County — and find the best time to visit. (based on Londonderry)

Best Places to Visit in Londonderry County in July

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Londonderry County.

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).

Popular Destinations in Londonderry County

What is the weather like in July for some of the most popular destinations in Londonderry County, the United Kingdom?

Temperature range in Londonderry County (July)

Precipitation variation in Londonderry County (July)

Londonderry

In July Londonderry generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are tolerable that month.

June
July
August
Max temperature
17°C (63°F)
19°C (66°F)
19°C (66°F)
Min temperature
10°C (50°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
160 hours
141 hours
140 hours
Monthly rainfall
102 mm (4 in)
107 mm (4.2 in)
108 mm (4.3 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions

Portstewart

In July Portstewart generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

June
July
August
Max temperature
15°C (59°F)
16°C (61°F)
17°C (63°F)
Min temperature
11°C (52°F)
12°C (54°F)
13°C (55°F)
Monthly sun hours
160 hours
141 hours
140 hours
Monthly rainfall
97 mm (3.8 in)
103 mm (4.1 in)
111 mm (4.4 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

Coleraine

In July Coleraine generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

June
July
August
Max temperature
15°C (59°F)
17°C (63°F)
17°C (63°F)
Min temperature
10°C (50°F)
12°C (54°F)
13°C (55°F)
Monthly sun hours
160 hours
141 hours
140 hours
Monthly rainfall
97 mm (3.8 in)
103 mm (4.1 in)
109 mm (4.3 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

Dungiven

In July Dungiven generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 12°C (54°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

June
July
August
Max temperature
17°C (63°F)
18°C (64°F)
18°C (64°F)
Min temperature
10°C (50°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
160 hours
141 hours
140 hours
Monthly rainfall
96 mm (3.8 in)
99 mm (3.9 in)
102 mm (4 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

Limavady

In July Limavady generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are tolerable that month.

June
July
August
Max temperature
16°C (61°F)
18°C (64°F)
18°C (64°F)
Min temperature
10°C (50°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
160 hours
141 hours
140 hours
Monthly rainfall
98 mm (3.9 in)
102 mm (4 in)
106 mm (4.2 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

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

In our records: the United Kingdom July extremes

Notable July records observed across cities in the United Kingdom in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest July day in the United Kingdom reached 39°C (102°F) in Nottingham on July 19, 2022.

Popular cities in July

Day & night temperatures, rainfall and average weather in Londonderry County in July.

City Weather Day temp Night temp Rainfall
Londonderry 19°C (66°F) 12°C (54°F) 107 mm (4.2 in)
Portstewart 16°C (61°F) 12°C (54°F) 103 mm (4.1 in)
Coleraine 17°C (63°F) 12°C (54°F) 103 mm (4.1 in)
Dungiven 18°C (64°F) 12°C (54°F) 99 mm (3.9 in)
Limavady 18°C (64°F) 12°C (54°F) 102 mm (4 in)
Aghadowey 18°C (64°F) 12°C (54°F) 103 mm (4.1 in)

Londonderry County weather in July: frequently asked questions

What is the weather like in Londonderry County, the United Kingdom in July?

July in Londonderry County, the United Kingdom brings tolerable weather. In Londonderry, daytime temperatures are typically around 19°C (66°F) and nighttime lows hover near 12°C (54°F).

What is the average temperature in Londonderry County, the United Kingdom in July?

In Londonderry, the average daytime high in July is 19°C (66°F), while nighttime temperatures drop to around 12°C (54°F).

Does Londonderry County, the United Kingdom get a lot of rain in July?

Yes, July tends to be a wetter month in Londonderry County, the United Kingdom. Average rainfall in Londonderry sits around 107 mm (4.2 in).

Is July a Good Time to Visit Londonderry County, the United Kingdom?

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

Generally speaking, May, July, August, September and October provide tolerable weather in Londonderry. The weather in January, February and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Londonderry County.

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.

Bucket list

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