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Bollmora

Weather in Bollmora: What to Expect by Season

Photo: TimSE, CC BY-SA 3.0

Weather overview

Bollmora experiences a temperate climate with distinct seasonal changes, typical for its location in Sweden. Winters in Bollmora are cold but not extreme, with temperatures often hovering around 0 °C in January and February. The days are short, and sunlight is limited, making the season feel quieter and more subdued. By March, the first signs of spring emerge, though the weather remains cool and unpredictable.

Summer in Bollmora is mild and pleasant, with the warmest months being June, July, and August. During this time, temperatures range from +12.8 °C at night to +24 °C during the day, creating comfortable conditions for outdoor activities. The long daylight hours in June and July make it an ideal time to explore the area. Autumn arrives gradually, with September and October bringing cooler temperatures and a mix of sunny and rainy days.

Temperature

Temperatures in Bollmora vary significantly throughout the year, reflecting the region's seasonal shifts. In winter, the coldest months—January and February—see average temperatures drop to -0.5 °C and 0 °C, with nighttime lows reaching -2.5 °C. While snow is possible, it rarely accumulates heavily, and the ground often remains bare or lightly dusted.

By April, temperatures begin to rise, averaging +5.9 °C, and the transition to spring becomes noticeable. The warmest period in Bollmora spans from June to August, with average temperatures peaking at +18.4 °C in July. Evenings remain cool, rarely dropping below +14 °C, which makes summer nights comfortable for strolling. As September arrives, temperatures gradually decline, and by November, the average drops to +3.5 °C, signaling the approach of winter.

Average air temperature °C
Average air temperature
Month Minimum Maximum
January -2.5 1.6
February -2.1 2.4
March -0.4 5.8
April 2.1 10.6
May 7.4 17.3
June 12.8 22.7
July 14.7 24
August 14 22.3
September 10.9 17.4
October 6.1 11
November 2.1 5.8
December -1 2.7

Precipitation

Rainfall in Bollmora is spread fairly evenly throughout the year, though some months are wetter than others. The driest period occurs in April, with just 23.4 mm of precipitation, making it one of the more stable months for outdoor plans. Summer months, particularly July and August, see the highest rainfall, with August recording up to 65.1 mm. These showers are often brief but can be frequent, so packing a light rain jacket is advisable.

Autumn in Bollmora brings a mix of rain and occasional crisp, sunny days. October is one of the wetter months, with 54.9 mm of precipitation, while November and December see slightly less rain but remain damp. Winter months like January and February are relatively dry in terms of rainfall, though snowfall can occur, adding a light layer to the landscape.

Precipitation amount mm
Precipitation amount
Month Precipitation
January 43.9
February 28.1
March 27.4
April 23.4
May 33.4
June 47.1
July 52.9
August 65.1
September 38.8
October 54.9
November 49.1
December 43

What to pack

When visiting Bollmora in winter, layering is key to staying comfortable. Pack warm clothing, including a insulated jacket, gloves, and a hat, as temperatures can drop below 0 °C in January and February. Waterproof shoes are also useful, as slush and light snow are common. For spring and autumn, a mix of light sweaters, long-sleeve shirts, and a waterproof layer will help you adapt to the changing weather.

Summer in Bollmora calls for lighter clothing, such as t-shirts, shorts, and breathable fabrics, though evenings can still feel cool. A light jacket or sweater is useful for nights, especially in June and August, when temperatures dip to around +14 °C. Don’t forget sunglasses and sunscreen, as the long daylight hours in July can be surprisingly bright. If you plan to explore outdoors, comfortable walking shoes are a must year-round.

Average monthly wind m/s
Average monthly wind
Month Wind speed
January 3.5
February 3
March —
April 2.9
May 2.6
June 2.4
July 2.3
August 2.4
September 2.4
October 3.1
November 2.8
December 2.6