Norrtälje Temperature by Month
Norrtälje in Stockholm county, Sweden sees significant seasonal temperature differences, with daytime highs between 2°C (36°F) in February and 22°C (72°F) in July, averaging 11°C (52°F) annually. Explore the full monthly breakdown below.
Norrtälje Monthly Temperatures
The weather in Norrtälje experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 14°C (57°F) in July to -4°C (25°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Norrtälje by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. July, the warmest month, gets 283 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Norrtälje vs Sweden
The map below shows the annual temperature across Sweden. You can also select individual months if you want to compare a specific time of year.
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Norrtälje vs World: Temperature Compared
Norrtälje's average annual maximum temperature is 11°C (52°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Norrtälje?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Norrtälje, February is the coolest month, with average highs of 2°C (36°F) and humidity around 80% — considered very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Norrtälje's weather — including monthly rainfall, sunshine hours, and humidity — visit our Norrtälje climate page.
