Weather in Lannion

To ensure your trip to Lannion goes perfectly, take a look at the latest weather report. Below, you will find current weather data, charts, and the forecast for the coming days.

The climate in Lannion can be described as temperate maritime, typical for the Brittany region. Due to the significant influence of the Atlantic Ocean, the weather here is characterised by mildness and a lack of sharp temperature fluctuations. Tourists should not expect severe frosts in winter or exhausting heat in summer; the climate remains quite steady and comfortable for travel at any time of year, although one must be prepared for the whims of the weather.

Summer in the city is cool and pleasant: in the warmest months, July and August, the average air temperature is around +17...+19°C, which is ideal for long walks. Winter here is warm by European continental standards, with temperatures around +8...+9°C. However, an important feature of the local climate is high humidity and frequent precipitation. Rain here is a regular occurrence: even in the summer season, there are about 10 rainy days per month, and in winter, especially in December and January, the number of days with precipitation can reach 18–20, so waterproof clothing and an umbrella will be essential.

Lannion's climate is distinguished by enviable mildness and the absence of extreme temperature spikes, making a stay here comfortable in almost any season. The annual temperature range is quite restrained: the coolest month is traditionally January with an average of about 7.8°C, while the peak warmth occurs in August, when the air warms up to an average of 17.3°C. This stability is due to the proximity of the ocean, which acts as a natural thermostat, smoothing out seasonal transitions.

Summer in French Brittany, and in Lannion in particular, can be characterised as pleasantly fresh, but not hot. In July and August, daytime highs rarely exceed 19.5°C, which is ideal for active tourism and long walks along the coast without the risk of heatstroke. Winters here follow a very mild scenario: even in the coldest months (January and February), night temperatures hold at the level of 6-7°C, so severe frosts are untypical for the city.

A characteristic feature of the local temperature regime is the minimal difference between day and night readings. Daily fluctuations are extremely insignificant — the gap between the maximum and minimum is often just 2-4 degrees. This means that tourists will not have to deal with sharp evening cooling; the weather remains predictable and steady throughout the day.

Precipitation in Lannion is a fairly frequent occurrence, characteristic of the mild maritime climate of this region of France. There is no pronounced dry season here, and rain can fall at any time of the year. However, judging by statistics, the intensity of precipitation is low, so most often it is a short-term drizzle or light rain that does not interfere with enjoying the atmosphere of Brittany.

The highest probability of precipitation is observed in the autumn-winter period. The rainiest month is December, when about 20 days with precipitation are recorded. January and March are also quite damp (18 days each). Snowfalls happen here extremely rarely, as the temperature even in the coldest months usually stays above freezing.

The driest and most comfortable period for travel is considered to be summer. In July and August, the number of rainy days drops to a minimum — about 10 per month. Even during this period, an umbrella may come in handy, but there are significantly more sunny hours, and the changeable weather often quickly replaces a cloudy sky with a clear one.

The climate in Lannion is mild but quite changeable, so the main rule when packing your suitcase will be the layering principle. Since precipitation is a frequent occurrence here at any time of the year (from 10 to 20 rainy days per month), be sure to bring a quality raincoat or a windproof jacket with a hood. An umbrella may also be useful, but due to possible winds from the coast, a reliable jacket will be much more practical. Pay special attention to footwear: it should be comfortable for walking and, preferably, waterproof, to comfortably stroll through ancient streets and trails along the Pink Granite Coast.

If you are planning a trip in summer, do not count on intense heat: the average temperature in July and August usually hovers around 17–19°C. Your luggage should include not only light items but also warm jumpers, jeans, or fleece tops for cool evenings. In winter and the off-season, when the temperature drops to 7–9°C, you will need an insulated jacket, a scarf, and gloves to enjoy walks in the fresh air without fear of dampness and chill.

Regardless of the season, do not forget to put sunscreen in your cosmetic bag and take sunglasses: in Lannion, the sun can be active even with variable cloudiness. For long excursions, a small backpack will come in handy, where you can put away a removed layer of clothing if it suddenly gets warmer. This approach will allow you to be ready for any whims of the weather in France and focus on the beauty of the region.