Bornholm Island Temperature by Month
The average annual maximum temperature in Bornholm Island, Hovedstaden, Denmark is 11°C (52°F), with daytime highs ranging from 4°C (39°F) in February to 20°C (68°F) in August. This page covers monthly averages, day-night differences, and how Bornholm Island compares to cities worldwide.
Bornholm Island Monthly Temperatures
In Bornholm Island, temperatures can shift dramatically between pleasant in summer and cold in winter. Nights follow the same pattern, with lows ranging from 17°C (63°F) in August to 1°C (34°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Bornholm Island by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 251 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Bornholm Island Temperatures: 1976-2026
Browse day-by-day temperature records for Bornholm Island spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Bornholm Island vs Denmark
The map below shows the annual temperature across Denmark. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Bornholm Island vs World: Temperature Compared
Bornholm Island'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.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Bornholm Island's weather — including monthly rainfall, sunshine hours, and humidity — visit our Bornholm Island climate page.
