Londonderry Weather in July

July in Londonderry averages 26°C (79°F) during the day and 13°C (55°F) at night. Quite a bit of rainfall is typical this month, with around 123 mm (4.8 in) on average. An umbrella is a good idea.

Rainfall in Londonderry in July

Historically, the month has about 14 days of rain, averaging 123 mm (4.8 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 July

July in Londonderry sees highs of 26°C (79°F) and lows of 13°C (55°F) overnight. July is typically considered a summer month. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.

If you prefer enjoying temperate temperatures and rain-free days, September typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.