Climate guide for Klagenfurt, Austria

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Klagenfurt

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About Klagenfurt

Klagenfurt is a sightseeing destination in Austria. Plan around late spring through early autumn for more reliable conditions, then drill into monthly scores when you need finer timing for sightseeing travel. Use the monthly scores to plan walking and sightseeing days around heat, rainfall, humidity and daylight.

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Travel Tips

Timing & weather
Check Klagenfurt's monthly climate scores before locking flights - temperate patterns shift comfort for sightseeing trips across the year.
Getting around
In Klagenfurt, pair a walkable core day with one transit or transfer buffer - crowds and traffic vary by season in Austria.
Tickets & access
Reserve popular museums and day trips from Klagenfurt ahead in peak months; shoulder seasons are more flexible.
Pack for the profile
Comfortable walking shoes and a day bag matter more than formal wear for most Klagenfurt sightseeing days.

Things to do in Klagenfurt

Klagenfurt, Austria. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Klagenfurt: the short answer

The best time to visit Klagenfurt is June, followed by August, July. Those months combine the most usable temperatures with the fewest lost days to rain: June averages 17°C with 131 mm of rain and about 26 sunny days. The months to avoid unless you have a specific reason are December, January. If budget matters more than perfect weather, October is the strongest of the low-rate months at 4.5/10.

Across the year Klagenfurt swings from -2°C in January to 20°C in July, a 22-degree spread, while rainfall ranges from 52 mm in February to 193 mm in September. That is the whole planning problem in one sentence: Klagenfurt is not equally good year-round, and the difference between the best and worst month here is 4.8 points on a 10-point scale.

Warmest month: July (20°C). Coolest: January (-2°C). Driest: February (52 mm). Wettest: September (193 mm).

Klagenfurt month by month

January in Klagenfurt — the hardest end of the year

Hardest · 2.8/10

January averages -2°C (28°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 8.8 hours of daylight.

It scores 2.8/10 here, 11th of 12 months, against 7.5/10 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, June is materially better in Klagenfurt — 4.7 points higher on the same scale.

February in Klagenfurt — the hardest end of the year

Hardest · 4.4/10

February averages 1°C (33°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 52 mm, so plan one flexible day in three; you still get about 1 sunny days and 10 hours of daylight.

It scores 4.4/10 here, 9th of 12 months, against 7.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

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

If your dates are flexible, June is materially better in Klagenfurt — 3.1 points higher on the same scale.

March in Klagenfurt — workable with trade-offs

Trade-offs · 5.2/10

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

Rainfall runs 83 mm, so plan one flexible day in three; you still get about 9 sunny days and 11.6 hours of daylight.

It scores 5.2/10 here, 7th of 12 months, against 7.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

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

If your dates are flexible, June is materially better in Klagenfurt — 2.3 points higher on the same scale.

April in Klagenfurt — workable with trade-offs

Trade-offs · 6.1/10

April averages 7°C (44°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 94 mm, so plan one flexible day in three; you still get about 15 sunny days and 13.3 hours of daylight.

It scores 6.1/10 here, 5th of 12 months, against 7.5/10 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.

May in Klagenfurt — workable with trade-offs

Trade-offs · 6.4/10

May 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.

At 156 mm this is a genuinely wet month: about 19 sunny days in total, and outdoor plans need an indoor fallback.

It scores 6.4/10 here, 4th of 12 months, against 7.5/10 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 proper rain shell rather than an umbrella.

June in Klagenfurt — the year's strongest window

Best window · 7.5/10

June 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.

At 131 mm this is a genuinely wet month: about 26 sunny days in total, and outdoor plans need an indoor fallback.

On our climate-comfort scale this is the top-ranked month of the year for Klagenfurt at 7.5/10 — the reference point every other month on this page is measured against.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.

July in Klagenfurt — reliably good (3rd best month)

Good · 7.1/10

July averages 20°C (67°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

At 183 mm this is a genuinely wet month: about 28 sunny days in total, and outdoor plans need an indoor fallback.

It scores 7.1/10 here, 3rd of 12 months, against 7.5/10 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 proper rain shell rather than an umbrella.

August in Klagenfurt — reliably good (2nd best month)

Good · 7.3/10

August averages 20°C (67°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

At 145 mm this is a genuinely wet month: about 21 sunny days in total, and outdoor plans need an indoor fallback.

It scores 7.3/10 here, 2nd of 12 months, against 7.5/10 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 proper rain shell rather than an umbrella.

September in Klagenfurt — workable with trade-offs

Trade-offs · 5.8/10

September averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

At 193 mm this is a genuinely wet month: about 11 sunny days in total, and outdoor plans need an indoor fallback.

It scores 5.8/10 here, 6th of 12 months, against 7.5/10 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 proper rain shell rather than an umbrella.

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

October in Klagenfurt — the hardest end of the year

Hardest · 4.5/10

October averages 11°C (52°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

At 167 mm this is a genuinely wet month: about 2 sunny days in total, and outdoor plans need an indoor fallback.

It scores 4.5/10 here, 8th of 12 months, against 7.5/10 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 proper rain shell rather than an umbrella.

If your dates are flexible, June is materially better in Klagenfurt — 3 points higher on the same scale.

November in Klagenfurt — the hardest end of the year

Hardest · 3.7/10

November averages 3°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 95 mm, so plan one flexible day in three; you still get about 0 sunny days and 9.1 hours of daylight.

It scores 3.7/10 here, 10th of 12 months, against 7.5/10 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, June is materially better in Klagenfurt — 3.8 points higher on the same scale.

December in Klagenfurt — the hardest end of the year

Hardest · 2.7/10

December averages -1°C (31°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

At 102 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.

It scores 2.7/10 here, 12th of 12 months, against 7.5/10 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 proper rain shell rather than an umbrella.

If your dates are flexible, June is materially better in Klagenfurt — 4.8 points higher on the same scale.

Frequently asked

When is the best time to visit Klagenfurt, Austria?
In Ideal Weather mode, the best months to visit Klagenfurt are June, August, July. June is the single peak month with an Ideal Weather score of 7.5/10 based on temperature, rainfall, humidity, daylight and historical sunny days.
What is the weather like in Klagenfurt year-round?
Klagenfurt has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from -2°C in January to 20°C in July, with Ideal Weather scores between 2.7 and 7.5 out of 10.
Which months should I avoid in Klagenfurt?
The lowest Ideal Weather-scoring months in Klagenfurt are December (2.7/10), January (2.8/10), November (3.7/10). These months typically combine less comfortable temperatures, higher rainfall or fewer sunny days.
When is the rainy season in Klagenfurt?
September is the wettest month in Klagenfurt, averaging about 193 mm of rainfall. February is the driest, at roughly 52 mm.
Which is the sunniest month in Klagenfurt?
July sees the most sun in Klagenfurt, with about 28 sunny days on average - ideal for outdoor plans.
Is Klagenfurt a good destination for sightseeing and cultural travel?
Klagenfurt is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (June, August, July) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Klagenfurt calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Klagenfurt: temperature comfort, precipitation, humidity, daylight hours, and historical sunny days - weighted for sightseeing and cultural travel.

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Curated in Klagenfurt

Tickets & experiences

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