Weather in Шаннон by month: what to expect

The weather in Шаннон is mild year-round, shaped by the Atlantic Ocean’s influence. Winters stay above freezing, while summers rarely feel hot, making Шаннон a destination where layers are always useful. Rainfall is spread across the year, though some months are noticeably drier than others.

In Шаннон, January and December bring the coolest conditions, with temperatures hovering around +6.3 °C to +7.1 °C. By April, the air warms to +9.8 °C, and the days grow longer, offering more daylight for exploring. The warmest stretch arrives in July and August, when highs reach +19.7 °C and +19.4 °C, though evenings can still feel fresh.

If you prefer fewer crowds and don’t mind occasional rain, Шаннон in May or September can be a good choice. The weather is settled, with temperatures between +12.8 °C and +14.1 °C, and the countryside at its greenest.

Temperatures in Шаннон follow a gentle curve, with no extreme highs or lows. The coldest months, January and February, see averages of +6.3 °C and +7.1 °C, while nighttime lows dip to +3.5 °C and +4.2 °C. Frost is rare, but a warm coat is still necessary for winter visits.

From May to September, Шаннон enjoys its warmest period. July is the peak, with daytime highs of +19.7 °C, though nights cool to +12.9 °C. Even in August, the warmth lingers, with averages around +15.9 °C. By October, temperatures drop to +11.5 °C, and the days grow shorter.

Spring and autumn in Шаннон are transitional but comfortable. April brings +9.8 °C, while November cools to +8.3 °C. The lack of sharp temperature swings makes these seasons pleasant for outdoor activities, though rain can interrupt plans.

Rain is a constant in Шаннон, with no month entirely dry. The wettest period runs from October to January, when monthly rainfall exceeds 80 mm. December is the rainiest, with 123.8 mm on average, while April and May are drier, with around 53 mm each.

Even in the driest months, Шаннон sees some rain, so waterproof gear is always a good idea. August and September bring a slight uptick in showers, with 104.1 mm and 87 mm respectively. The rain rarely lasts all day, but it can appear suddenly, especially near the coast.

If you’re hoping to avoid heavy downpours, April and May are the most reliable months in Шаннон. While rain is still possible, it’s less frequent, and the days are sunnier, with up to 7 hours of sunshine in May.

For a trip to Шаннон in winter, pack layers and a waterproof jacket. Even in January, temperatures stay mild, but wind and rain can make it feel cooler. A scarf and gloves are useful for evenings, while sturdy shoes will help on damp paths.

In summer, Шаннон calls for light clothing, but don’t forget a sweater or light jacket for cooler nights. July and August are the warmest, but evenings can drop to +12.9 °C, so a long-sleeve layer is practical. A compact umbrella or raincoat is still wise, even in the driest months.

Spring and autumn in Шаннон require versatile outfits. April and May can be sunny, but October and November bring more rain and wind. Pack a mix of short- and long-sleeve tops, along with a waterproof outer layer. Comfortable walking shoes are a must, as the ground can be wet and uneven.