Weather in Londonderry

Planning a trip to Londonderry? Check out the current weather conditions, and explore the detailed forecasts and charts below to be prepared for any whims of nature.

The climate of Londonderry can be characterised as temperate maritime, which is typical for this part of the United Kingdom. Thanks to the influence of the Atlantic Ocean, the weather here is mild, without sharp temperature changes or extreme phenomena. Sweltering heat or severe frosts are rare here, making the city accessible for visiting year-round, although tourists should be prepared for the frequent changeability of the weather.

The seasons are not very sharply contrasted. Summer in Londonderry is usually cool and fresh: the average temperature in July and August hovers around 14–17°C, which is ideal for active walks. Winter is mild and damp, the thermometer rarely drops below 3°C, and average figures stay at the level of 5–6°C. Snow is an infrequent phenomenon, and if it falls, it does not stay for long.

The main feature of the local weather is the high frequency of precipitation, which is evenly distributed throughout the year. Even in the "driest" months, the number of rainy days ranges from 16 to 20. Therefore, when packing for your trip, be sure to put an umbrella and a waterproof windbreaker in your suitcase: rain can start suddenly, but it is often light and short-lived.

The climate in Londonderry is distinguished by its mildness and absence of extreme temperature fluctuations, making the city accessible for visits all year round. The coldest month is traditionally January with an average temperature of about 5.1°C, while the peak of warmth falls on July and August. At the height of summer, the air warms up on average to 14.4°C, creating comfortable conditions for travellers who prefer moderate warmth to exhausting heat.

The summer season here can be characterised as pleasantly fresh. Even in the warmest months, maximum daytime temperatures rarely exceed 17°C, and nights remain quite mild with figures around 11-12°C. Such weather is ideal for long walks around the city's sights, as you will not have to suffer from stuffiness or seek shelter in air-conditioned rooms.

Winter in this region of the United Kingdom passes without severe frosts. Average figures in the winter months vary from 3°C to 8°C, and the thermometer rarely drops below freezing. Notably, Londonderry observes a very small amplitude of fluctuations between day and night temperatures: the difference is often just 3-4 degrees, ensuring a stable and predictable temperature background throughout the day.

Precipitation in Londonderry is distributed surprisingly evenly throughout the year, so it is difficult to single out a clearly pronounced dry season or rainy season. The influence of the Atlantic ensures constant humidity, and travellers should be prepared for overcast weather to catch them in any month. An umbrella or waterproof jacket are mandatory wardrobe items when visiting this region, regardless of the season.

Rains occur here with enviable regularity: the number of days with precipitation varies on average from 16 to 20 per month. Most often these are not heavy downpours, but drizzle or moderate rains characteristic of the British Isles, which can fall intermittently throughout the day. Even in May, which is statistically one of the "driest" months, about 16 rainy days are recorded.

The highest frequency of precipitation is observed in August, October, and December, when the number of inclement days reaches 20 per month. In winter, from December to February, with temperatures dropping to 3–4°C, wet snow is possible, but sustained snowfalls happen infrequently. In summer, rains are also a common occurrence, but thanks to higher temperatures, they are tolerated more comfortably.

The weather in Londonderry is characterised by mildness, but also unpredictability, so the best strategy when packing your suitcase is the principle of layering. Even in the warmest summer months, July and August, the average temperature holds around 14–15°C, rarely exceeding 17°C. Therefore, besides light t-shirts, be sure to take warm jumpers, fleece jackets, and thick trousers with you. This will allow you to feel comfortable both on cool mornings and during daytime walks.

Considering the statistics, according to which rainy days happen on average 17–20 times a month all year round, reliable protection from moisture is your main priority. An ordinary umbrella might not be enough due to the wind, so it is recommended to take a high-quality waterproof windbreaker with a hood or a raincoat. Pay special attention to footwear: it should be comfortable for long walks around the city sights and, preferably, waterproof so that your feet remain dry in any weather.

If you are planning a trip during the winter period (from December to February), when the temperature ranges from 3°C to 8°C, do not forget to equip your wardrobe with a hat, a scarf, and gloves. Although severe frosts are rare here, high humidity and wind can create a sensation of damp chill. In summer, despite the coolness, the sun can be active, so sunglasses and sunscreen will not be out of place in your travel bag either.