Trosa Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Trosa.

Climate overview of Trosa

Trosa, Sodermanland, Sweden, experiences significant temperature variation throughout the year. Summers bring daytime highs of 22°C (72°F) in July, while winters cool to 2°C (36°F) in January.

The city receives around 642 mm (25 in) of rain/snowfall per year. It experiences a distinct dry season from March to April, with warm summers and cold winters. August is the wettest month and March the driest. July is the sunniest month, averaging 9.4 hours of sunshine per day.

Trosa Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Trosa - and find the best time to visit.

Monthly Temperature in Trosa

Depending on the time of the year, temperatures range from comfortable to chilly in Trosa. On average, daytime temperatures range from a comfortable 22°C (72°F) in July to a chilly 2°C (36°F) in January.

Nighttime temperatures range from 13°C (55°F) in July to -4°C (25°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Trosa

Generally, Trosa has a moderate amount of precipitation, averaging 642 mm (25 in) of rain/snowfall annually. The amount of precipitation varies moderately throughout the year. The wettest month, August, sees around 72 mm (2.8 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, March, still receives a respectable 35 mm (1.4 in) of snow/rainfall. For more details, please visit our Trosa Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Trosa

In Trosa, summer days are longer and more sunny, with daily sunshine hours peaking at 9.4 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.1 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Stockholm, Sweden (55 KM, 34 Miles).

Daily hours of sunshine

Data from: Stockholm, Sweden (55 KM, 34 Miles).

Humidity in Trosa by Month

Best Time to Visit Trosa

For comfortable weather, consider visiting Trosa in July and August. Conditions are usually least favourable in January, February, March, April, November and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: July and August
  • Warmest weather: July and August
  • Most sunshine: May, June and July
  • Fewest rainy days: March, April, May and June
  • Seasonal pattern: A distinct dry season from March to April, with warm summers and cold winters
  • Coldest conditions: January, with freezing nights around -4°C (25°F).

Frequently asked questions about the climate in Trosa

What is the best time to visit Trosa?

July and August typically offer the most optimal weather in Trosa. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Trosa has a distinct dry season from March to April, with warm summers and cold winters.

What temperatures can I expect in Trosa?

Daytime highs range from 2°C (36°F) in January to 22°C (72°F) in July. Nighttime lows range from -4°C (25°F) to 13°C (55°F). Temperatures vary considerably through the year.

How much rain does Trosa get?

Annual rainfall is around 642 mm (25 in). August is the wettest month with 72 mm (2.8 in), while March is the driest with 35 mm (1.4 in).

How sunny is Trosa?

Trosa receives around 1,917 hours of sunshine per year. July is the sunniest month with 283 hours, while December is the cloudiest with just 32 hours.

Trosa 3-Day Forecast

Trosa on the map

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