Climate guide for Bornholm, Denmark

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Bornholm

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About Bornholm

Bornholm is a beach destination in Denmark. Its setting includes Sunny Baltic island of round white churches, smoked herring, and rocky beaches. Use the monthly scores to weigh time by the water against heat, rainfall, humidity, daylight and sunny-day patterns.

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Travel Tips

Best time to visit Bornholm
Check seasonal weather curves and book accommodations early for Bornholm.

Things to do in Bornholm

Bornholm, Denmark. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Bornholm: the short answer

The best time to visit Bornholm is July, followed by August, May. Those months combine the most usable temperatures with the fewest lost days to rain: July averages 18°C with 91 mm of rain and about 27 sunny days. The months to avoid unless you have a specific reason are January, December. If budget matters more than perfect weather, March is the strongest of the low-rate months at 2.8/10.

Across the year Bornholm swings from 4°C in January to 19°C in August, a 15-degree spread, while rainfall ranges from 24 mm in May to 91 mm in July. That is the whole planning problem in one sentence: Bornholm is not equally good year-round, and the difference between the best and worst month here is 4.6 points on a 10-point scale.

Warmest month: August (19°C). Coolest: January (4°C). Driest: May (24 mm). Wettest: July (91 mm).

Bornholm month by month

January in Bornholm — the hardest end of the year

Hardest · 1.7/10

January averages 4°C (39°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 87 mm, so plan one flexible day in three; you still get about 0 sunny days and 7.5 hours of daylight.

It scores 1.7/10 here, 12th of 12 months, against 6.3/10 in the destination's best month.

Expect mid-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.

If your dates are flexible, July is materially better in Bornholm — 4.6 points higher on the same scale.

February in Bornholm — the hardest end of the year

Hardest · 1.8/10

February averages 4°C (39°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 88 mm, so plan one flexible day in three; you still get about 0 sunny days and 9.3 hours of daylight.

It scores 1.8/10 here, 10th of 12 months, against 6.3/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.

If your dates are flexible, July is materially better in Bornholm — 4.5 points higher on the same scale.

March in Bornholm — the hardest end of the year

Hardest · 2.8/10

March averages 4°C (39°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 61 mm, so plan one flexible day in three; you still get about 3 sunny days and 11.5 hours of daylight.

It scores 2.8/10 here, 7th of 12 months, against 6.3/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

If your dates are flexible, July is materially better in Bornholm — 3.5 points higher on the same scale.

April in Bornholm — the hardest end of the year

Hardest · 4.6/10

April averages 6°C (42°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 58 mm, so plan one flexible day in three; you still get about 15 sunny days and 13.8 hours of daylight.

It scores 4.6/10 here, 5th of 12 months, against 6.3/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

If your dates are flexible, July is materially better in Bornholm — 1.7 points higher on the same scale.

May in Bornholm — workable with trade-offs

Trade-offs · 6.2/10

May averages 11°C (51°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Expect 24 mm of rain — occasional showers rather than washed-out days — alongside about 29 sunny days and 15.9 daylight hours.

It scores 6.2/10 here, 3rd of 12 months, against 6.3/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.

June in Bornholm — workable with trade-offs

Trade-offs · 6.1/10

June averages 16°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 50 mm, so plan one flexible day in three; you still get about 29 sunny days and 17.1 hours of daylight.

It scores 6.1/10 here, 4th of 12 months, against 6.3/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

July in Bornholm — the year's strongest window

Best window · 6.3/10

July averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 91 mm, so plan one flexible day in three; you still get about 27 sunny days and 16.6 hours of daylight.

On our climate-comfort scale this is the top-ranked month of the year for Bornholm at 6.3/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

August in Bornholm — workable with trade-offs

Trade-offs · 6.3/10

August averages 19°C (66°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Rainfall runs 79 mm, so plan one flexible day in three; you still get about 17 sunny days and 14.7 hours of daylight.

It scores 6.3/10 here, 2nd of 12 months, against 6.3/10 in the destination's best month.

Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

September in Bornholm — the hardest end of the year

Hardest · 4.5/10

September averages 17°C (63°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 58 mm, so plan one flexible day in three; you still get about 7 sunny days and 12.4 hours of daylight.

It scores 4.5/10 here, 6th of 12 months, against 6.3/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

If your dates are flexible, July is materially better in Bornholm — 1.8 points higher on the same scale.

October in Bornholm — the hardest end of the year

Hardest · 2/10

October averages 13°C (55°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 80 mm, so plan one flexible day in three; you still get about 0 sunny days and 10.1 hours of daylight.

It scores 2/10 here, 8th of 12 months, against 6.3/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

If your dates are flexible, July is materially better in Bornholm — 4.3 points higher on the same scale.

November in Bornholm — the hardest end of the year

Hardest · 2/10

November averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 72 mm, so plan one flexible day in three; you still get about 0 sunny days and 8 hours of daylight.

It scores 2/10 here, 9th of 12 months, against 6.3/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

If your dates are flexible, July is materially better in Bornholm — 4.3 points higher on the same scale.

December in Bornholm — the hardest end of the year

Hardest · 1.8/10

December averages 5°C (41°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 76 mm, so plan one flexible day in three; you still get about 0 sunny days and 6.9 hours of daylight.

It scores 1.8/10 here, 11th of 12 months, against 6.3/10 in the destination's best month.

Expect mid-season pricing, and crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

If your dates are flexible, July is materially better in Bornholm — 4.5 points higher on the same scale.

Frequently asked

When is the best time to visit Bornholm, Denmark?
In Ideal Weather mode, the best months to visit Bornholm are July, August, May. July is the single peak month with an Ideal Weather score of 6.3/10 based on temperature, rainfall, humidity, daylight and historical sunny days.
What is the weather like in Bornholm year-round?
Bornholm has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 4°C in January to 19°C in August, with Ideal Weather scores between 1.7 and 6.3 out of 10.
Which months should I avoid in Bornholm?
The lowest Ideal Weather-scoring months in Bornholm are January (1.7/10), February (1.8/10), December (1.8/10). These months typically combine less comfortable temperatures, higher rainfall or fewer sunny days.
When is the rainy season in Bornholm?
July is the wettest month in Bornholm, averaging about 91 mm of rainfall. May is the driest, at roughly 24 mm.
Which is the sunniest month in Bornholm?
May sees the most sun in Bornholm, with about 29 sunny days on average - ideal for outdoor plans.
Is Bornholm a good destination for beach and coastal travel?
Bornholm is well suited to beach and coastal travel. Its highest Ideal Weather window (July, August, May) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Bornholm calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Bornholm: temperature comfort, precipitation, humidity, daylight hours, and historical sunny days - weighted for beach and coastal travel.

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