Question 1

Which months had the most sunshine in Vienna in 2025?

Accepted Answer

June was the sunniest month in Vienna in 2025, recording 381.5 hours of sunshine, closely followed by August with 374.2 hours and July with 279.7 hours. The summer months clearly dominated the city's brightest stretch of the year.

Across all of 2025, Vienna accumulated 2,422.5 hours of sunshine. The three summer months alone (June to August) delivered 1,035.4 hours, which is roughly 43% of the entire year's sunshine packed into just a quarter of the calendar. In June, Vienna averaged about 12.7 hours of sun per day, with maximum temperatures climbing as high as 36.6°C (97.9°F).

At the other end of the scale, December was the gloomiest month in Vienna with only 57.7 hours of sunshine, or under two hours per day. January (78.2 hours) and November (96.2 hours) were similarly dim, reflecting the short, overcast days typical of the city's continental winter.

For visitors, this pattern means late spring through summer offers by far the best chance of bright, sunny weather in Vienna. Months like May, April, and March each topped 215 hours, making them excellent shoulder-season options for sightseeing and outdoor cafés without the peak summer heat. If sunshine is your priority, plan a trip to Vienna between April and September and pack for warm, bright conditions.

Question 2

What were the temperature extremes in Vienna in 2025?

Accepted Answer

Vienna swung between a high of 37.1°C (98.8°F) and a low of -11.7°C (10.9°F) in 2025, an annual temperature range of nearly 49°C (88°F). This wide spread reflects the city's classic continental climate, with hot summers and genuinely cold winters.

The hottest day in Vienna came on 3 July 2025, when the temperature peaked at 37.1°C (98.8°F). The coldest moment arrived on 19 February 2025, when the thermometer dropped to -11.7°C (10.9°F) overnight. Across the full year, Vienna averaged a mean temperature of 11.2°C (52.1°F).

Heat was a recurring feature of the 2025 summer in Vienna:

- 35 days reached 30°C (86°F) or higher
- 2 of those days climbed to at least 35°C (95°F)
- June was the warmest month, averaging 21.8°C (71.2°F)

Winter delivered the opposite extreme, with 88 frost days (overnight lows below 0°C/32°F) and one full ice day where the temperature never rose above freezing. February was the coldest month, averaging just 0.6°C (33.1°F).

For visitors, this means Vienna is best enjoyed with seasonal planning: pack light, breathable clothing and sun protection for the frequent summer heat, and bring warm layers if travelling between December and February, when frost is common.

Question 3

Which season was the wettest in Vienna in 2025?

Accepted Answer

Summer was the wettest season in Vienna in 2025, with the meteorological summer months (June 1 to August 31, 2025) delivering about 481 mm (18.9 in) of rainfall — roughly 40% of the city's entire annual precipitation.

That summer total far outpaced the other seasons. Spring (March to May 2025) brought 266 mm (10.5 in), autumn (September to November 2025) added 390 mm (15.3 in), while the winter months within 2025 (January and February) were the driest stretch at just 36 mm (1.4 in). Across the full year, Vienna recorded 1,204 mm (47.4 in) of total precipitation.

The single wettest month was July 2025, with a striking 225 mm (8.9 in) of rain, followed by June at 173 mm (6.8 in). At the other extreme, February 2025 was the driest month of the year with only 8 mm (0.3 in).

These figures show that Vienna's heaviest rainfall in 2025 concentrated in the warm season, driven by summer thunderstorms rather than steady winter precipitation. Travelers and residents planning outdoor activities should pack rain gear for June and July, when the climate is at its wettest, while late winter offers the driest and most settled conditions for getting around the city.

Question 4

How windy is Vienna, and which months are the windiest in 2025?

Accepted Answer

Vienna is a moderately breezy city, with an average wind speed of just **11.0 km/h (6.8 mph)** across 2025 — light enough that strong winds are rarely a daily concern. Monthly averages stayed within a narrow band of 9.6 to 13.4 km/h (6.0 to 8.3 mph) all year, so Vienna avoids the dramatic windy spells seen in more exposed regions.

The windiest month in 2025 was **April at 13.4 km/h (8.3 mph)**, closely followed by July at 13.1 km/h (8.1 mph) and October at 12.5 km/h (7.8 mph). The calmest stretch came in late autumn and early winter, with December the gentlest month at just **9.6 km/h (6.0 mph)**.

Grouped by meteorological season, the wind was remarkably steady:

- **Spring (Mar–May):** 11.6 km/h (7.2 mph)
- **Summer (Jun–Aug):** 11.4 km/h (7.1 mph)
- **Autumn (Sep–Nov):** 11.0 km/h (6.8 mph)
- **Winter (Jan–Feb + Dec):** 10.0 km/h (6.2 mph)

For visitors and residents, these figures mean Vienna stays comfortable for walking, cycling, and outdoor dining throughout the year. The slightly breezier spring days in April can make the air feel cooler, while the calm, still conditions of December often pair with higher humidity. Overall, wind is a mild and predictable part of Vienna's climate in 2025.

Question 5

Which months are the most and least humid in Vienna in 2025?

Accepted Answer

Vienna was at its most humid in December 2025, when average relative humidity reached 90%, while June 2025 was the driest air of the year at just 53%. Across the full 2025 calendar year, the city averaged a moderate 71.4% relative humidity.

The most humid stretch in Vienna clustered around late autumn and early winter, as cooler air and frequent grey, damp conditions pushed levels up:

- **December 2025:** 90% average humidity
- **November 2025:** 86.5%
- **January 2025:** 85.3%

By contrast, the warmer half of the year felt noticeably drier. Humidity bottomed out at 53% in June 2025, with August (60.5%) and May (57.2%) also staying comfortable. Grouped by meteorological season, summer (June–August) averaged 60.0% and spring (March–May) 62.4%, well below autumn (September–November) at 79.5% and the partial winter window of January–February at 80.3%.

This pattern is typical for Vienna's continental climate: the lowest humidity coincided with its warmest month, June, which averaged 21.8°C (71.2°F), while the muggiest, foggiest air settled in during December's chill of 2.4°C (36.3°F).

For visitors, late spring and summer in Vienna offer the most comfortable, breathable air despite the heat, making them ideal for sightseeing and outdoor dining. Travelers in November and December 2025 should expect damp, raw conditions where the high humidity makes the cold feel sharper, so a windproof, water-resistant layer is well worth packing.

St. Ulrich

Vienna

FAQ

Which months had the most sunshine in Vienna in 2025?

What were the temperature extremes in Vienna in 2025?

Which season was the wettest in Vienna in 2025?

How windy is Vienna, and which months are the windiest in 2025?

Which months are the most and least humid in Vienna in 2025?