Weather in Руан by month: what to expect

Руан lies in northern France, where the weather shifts gently through the seasons without extreme swings. Winters here are cool but rarely harsh, while summers bring mild warmth rather than scorching heat. The city’s climate is shaped by its proximity to the Atlantic, which softens temperature contrasts but also keeps the skies changeable year-round.

From November to February, Руан sees its coolest and wettest months, with frequent rain and occasional gray skies. Spring arrives gradually, with March and April offering a mix of crisp mornings and brighter afternoons. By June, the city settles into its warmest stretch, though even in July and August, temperatures rarely climb above 24 °C. Autumn returns softly, with September and October often pleasantly mild before the dampness of late fall sets in.

In Руан, temperatures follow a steady rhythm, rarely straying into extremes. The coldest months, January and February, average around 4.3–5.7 °C, with nighttime lows dipping to 1.7–2.7 °C. Frost is possible but uncommon, and snow is a rare visitor. By April, the air warms noticeably, reaching 10.1 °C on average, while May brings the first hints of summer at 13.4 °C.

Summer in Руан is mild and comfortable, with July and August hovering around 18.5–18.7 °C. Daytime highs can reach 24 °C, but evenings often cool quickly, making layers useful. September marks the start of the transition, with temperatures dropping to 15.7 °C, while October and November see a sharper decline, settling around 12.1 °C and 7.6 °C respectively. The city’s maritime influence keeps the heat from lingering too long into autumn.

Руан is no stranger to rain, with precipitation spread fairly evenly across the year. The wettest months, November and December, see around 97 mm of rainfall, while January and October also bring steady showers. Even in the drier months like April and July, rain is still a regular feature, though totals drop to around 44–51 mm.

The city’s reputation for dampness isn’t exaggerated, but downpours are rarely prolonged. Instead, expect frequent light rain or drizzle, especially in autumn and winter. June and September offer a slight reprieve, with slightly lower rainfall, but umbrellas remain a year-round necessity. The Atlantic influence means even sunny days can turn quickly, so it’s wise to be prepared for sudden changes.

For a trip to Руан in winter, pack layers to handle the cool, damp conditions. A warm coat, waterproof shoes, and a scarf will help navigate the 4–6 °C temperatures and frequent rain. Gloves aren’t usually necessary, but a hat can be useful for chilly mornings. If visiting in spring, bring a mix of light sweaters and a waterproof jacket, as March and April can still feel brisk, especially in the evenings.

Summer in Руан calls for light, breathable clothing, but don’t forget a light jacket or cardigan for cooler evenings. Temperatures in July and August average 18–24 °C, but a sudden shower can still catch you off guard. For autumn, layers are key—think long sleeves, a medium-weight coat, and a compact umbrella. Waterproof footwear is especially useful in October and November, when rain becomes more frequent.