Best Time to Visit Austria
Go in June or September. June in Vienna hits 28.1°C (82.6°F) by day and only drops to 16.8°C (62.2°F) at night, with 38.7mm (1.5in) of rain spread over 8 days — the driest summer month by a wide margin. September cools to 21.7°C (71.1°F) with lows of 13.3°C (55.9°F), which is the most comfortable walking weather of the year, though you pay for it with 104.2mm (4.1in) of rain across 13 days. The month to think twice about is July: 117.9mm (4.6in) fell over 17 days, meaning it rained on more than half the days in the month.
All figures below are measured 2025 data for Vienna. That is one year, not a 30-year average, and it describes the flat eastern part of the country. Salzburg, Innsbruck and anywhere in the Alps runs colder and wetter than these numbers, especially with altitude.
Monthly climate — Vienna, measured
| Month | Avg high | Avg low | Rainfall | Rainy days |
|---|---|---|---|---|
| January | 4.7°C / 40°F | -1.3°C / 30°F | 15.1 mm | 5 |
| February | 4.5°C / 40°F | -1.5°C / 29°F | 5.7 mm | 3 |
| March | 12.7°C / 55°F | 3.1°C / 38°F | 58.4 mm | 8 |
| April | 17.7°C / 64°F | 7.9°C / 46°F | 43.0 mm | 10 |
| May | 19.5°C / 67°F | 9.8°C / 50°F | 56.3 mm | 12 |
| June | 28.1°C / 83°F | 16.8°C / 62°F | 38.7 mm | 8 |
| July | 26.0°C / 79°F | 16.7°C / 62°F | 117.9 mm | 17 |
| August | 27.4°C / 81°F | 16.2°C / 61°F | 53.3 mm | 9 |
| September | 21.7°C / 71°F | 13.3°C / 56°F | 104.2 mm | 13 |
| October | 14.1°C / 57°F | 7.5°C / 46°F | 54.2 mm | 13 |
| November | 7.7°C / 46°F | 2.2°C / 36°F | 57.1 mm | 9 |
| December | 4.3°C / 40°F | 1.0°C / 34°F | 27.1 mm | 7 |
Source: Open-Meteo historical archive. These are measured values, not estimates.
The best months, and what they actually feel like
June is the outlier in this dataset. It recorded the highest daytime temperature of the year at 28.1°C (82.6°F) — hotter than July's 26.0°C (78.8°F) and August's 27.4°C (81.3°F) — while getting the least rain of any summer month: 38.7mm (1.5in) over 8 days. That works out to about 4.8mm per rainy day, which is a shower you wait out under a café awning, not a washout. Nights stay at 16.8°C (62.2°F), warm enough to sit outside in the Prater or by the Danube in a t-shirt at 10pm without getting cold. Days are also at their longest, so you get roughly 16 hours of usable light.
September is the better month if you plan to walk a lot. 21.7°C (71.1°F) is the temperature at which you can spend six hours on your feet in Salzburg's old town or climb up to a hillside viewpoint without needing to stop and cool down. Lows of 13.3°C (55.9°F) mean a light jacket in the evening, nothing more. The catch is 104.2mm (4.1in) of rain over 13 days — the second-wettest month of the year. Split across 13 days that's 8.0mm per rainy day, which is heavier than a summer shower. Expect a couple of properly wet afternoons and plan indoor alternatives for them.
May deserves a mention as the quietest good month. 19.5°C (67.1°F) days and 9.8°C (49.6°F) nights, with 56.3mm (2.2in) over 12 days. Twelve rainy days sounds bad until you divide: 4.7mm each, which is drizzle and passing showers. May is the month where the rain is frequent but never serious.
The months to avoid, and why
July is the one clear loss. 117.9mm (4.6in) of rain over 17 days is the wettest month in the record, and it is the only month where rain fell on the majority of days. At 26.0°C (78.8°F) with lows of 16.7°C (62.1°F), the air holds that moisture — this is thunderstorm rain that builds through a hot afternoon and dumps in an hour, not the grey all-day drizzle of a British autumn. 6.9mm per rainy day confirms it: short and heavy. If your trip is locked to July, build your days around morning sightseeing and afternoon museums, and carry a packable rain shell rather than an umbrella you'll fight with in the wind.
January and February are the cold end. Highs of 4.7°C (40.5°F) and 4.5°C (40.1°F), lows of −1.3°C (29.7°F) and −1.5°C (29.3°F). Below-freezing nights mean icy pavements in the morning and a real limit on how long you can stand still outdoors. Two hours of walking is fine; a full day of it is not, unless you're prepared to duck into a coffee house every ninety minutes — which, admittedly, is how Vienna is designed to be used in winter.
But note something counterintuitive in the data: February is the driest month of the year by a large margin, with just 5.7mm (0.2in) over 3 days. January is second-driest at 15.1mm (0.6in) over 5 days. Cold does not mean wet here. If you don't mind the temperature, late winter gives you clear, dry, still air and almost no rain interruptions. That is a genuinely different proposition from a wet, mild winter city.
November is the month with the least going for it. 7.7°C (45.9°F) days and 2.2°C (36.0°F) nights, with 57.1mm (2.2in) over 9 days. Too cold to sit outside, not cold enough for the Christmas markets to have started, and short days. It is the cheapest month for a reason.
Shoulder season: cheaper, still workable
April is the strongest shoulder month in this data. 17.7°C (63.9°F) days are genuinely pleasant, and 43.0mm (1.7in) over 10 days is only 4.3mm per rainy day — the lightest rain-per-day of any spring or autumn month. Lows of 7.9°C (46.2°F) mean you need a proper jacket after sunset but not gloves. April is warmer by day than October (17.7°C vs 14.1°C) and drier, and it comes before the summer crowds and before summer pricing.
October is the other option. 14.1°C (57.4°F) with lows of 7.5°C (45.5°F) is sweater weather — comfortable for walking, too cool for terraces. 54.2mm (2.1in) over 13 days works out to 4.2mm per rainy day, so like May it's frequent but light. Thirteen rainy days in a 31-day month means you should assume roughly two in five days will have some rain in them, and plan accordingly rather than hoping.
December is a special case rather than a shoulder month. It has the lowest daytime high of the year at 4.3°C (39.7°F), but its lows of 1.0°C (33.8°F) are actually milder than November's 2.2°C — sorry, the reverse: November's nights at 2.2°C (36.0°F) are milder than December's 1.0°C (33.8°F). Either way, December sits right at freezing, and it is dry for a winter month at 27.1mm (1.1in) over 7 days. That is the Christmas market window, and the numbers say you will be standing in cold, largely dry air rather than being rained on.
What each season actually means for your trip
Summer (June–August). You'll be outdoors most of the day: lake swimming, hiking valleys, sitting in Schanigärten. Highs of 26.0–28.1°C (78.8–82.6°F) are hot but not brutal, and lows of 16.2–16.8°C (61.2–62.2°F) make the evenings the best part of the day. Pack shorts, two or three t-shirts you can rinse, one light layer for the evening, and a rain shell — especially in July. Many older Austrian buildings, including a lot of mid-range hotels, have no air conditioning; at 28.1°C that matters more than it sounds. Check before you book.
Autumn (September–November). September is still summer-adjacent at 21.7°C (71.1°F); by November you're at 7.7°C (45.9°F). This is the season with the most temperature drop inside it, so pack layers rather than one warm thing. September and October both have 13 rainy days, so waterproof shoes earn their space in the bag — cobblestones plus 8mm of rain is a soaked-sock situation. Autumn is when the wine taverns around Vienna are at their best.
Winter (December–February). Highs of 4.3–4.7°C (39.7–40.5°F), lows at or below freezing. You'll be doing short outdoor stints between indoor ones — markets, museums, coffee houses, concert halls. The dryness helps: with 5.7–27.1mm of rain per month, you're dealing with cold, not wet. Pack a real coat, a hat, and gloves, plus something you can wear indoors when a heated museum makes the coat unbearable. If you're heading to the Alps to ski, ignore all these numbers — Vienna is 170m above sea level and tells you nothing about conditions at 2,000m.
Spring (March–May). March jumps to 12.7°C (54.9°F) from February's 4.5°C — an 8.2°C leap, the biggest month-to-month change in the year — but nights still sit at 3.1°C (37.6°F), so the days start cold and warm up fast. That gap between 3.1°C at breakfast and 12.7°C mid-afternoon is exactly the situation layers exist for. Rain climbs steadily: 58.4mm in March, 43.0mm in April, 56.3mm in May.
Month-by-month
- January — 4.7°C / −1.3°C (40.5°F / 29.7°F), 15.1mm over 5 days. Cold and dry; second-driest month of the year.
- February — 4.5°C / −1.5°C (40.1°F / 29.3°F), 5.7mm over 3 days. The coldest nights and by far the driest month.
- March — 12.7°C / 3.1°C (54.9°F / 37.6°F), 58.4mm over 8 days. Big daily swing; rain arrives in earnest.
- April — 17.7°C / 7.9°C (63.9°F / 46.2°F), 43.0mm over 10 days. Best value month: warm days, light rain, low prices.
- May — 19.5°C / 9.8°C (67.1°F / 49.6°F), 56.3mm over 12 days. Frequent but light showers, comfortable throughout.
- June — 28.1°C / 16.8°C (82.6°F / 62.2°F), 38.7mm over 8 days. Hottest and driest of summer. The best single month.
- July — 26.0°C / 16.7°C (78.8°F / 62.1°F), 117.9mm over 17 days. Wettest month; rain on the majority of days.
- August — 27.4°C / 16.2°C (81.3°F / 61.2°F), 53.3mm over 9 days. Hot, far drier than July, busy.
- September — 21.7°C / 13.3°C (71.1°F / 55.9°F), 104.2mm over 13 days. Ideal temperatures, heavy rain when it comes.
- October — 14.1°C / 7.5°C (57.4°F / 45.5°F), 54.2mm over 13 days. Sweater weather with frequent light rain.
- November — 7.7°C / 2.2°C (45.9°F / 36.0°F), 57.1mm over 9 days. The weakest month on every measure.
- December — 4.3°C / 1.0°C (39.7°F / 33.8°F), 27.1mm over 7 days. Cold, dry, and market season.
FAQ
What is the cheapest time to visit Austria?
November, followed by late January and February — after the Christmas markets close and before spring. November is cheap because the weather is genuinely poor: 7.7°C (45.9°F) days, 2.2°C (36.0°F) nights, and 9 rainy days. February is the better bargain, because although it's colder (4.5°C / 40.1°F days, −1.5°C / 29.3°F nights), it only recorded 5.7mm of rain over 3 days. You get clear, dry days at low-season prices.
Is July really that bad?
Not bad, but wet. 26.0°C (78.8°F) is fine walking weather, and 117.9mm over 17 days is 6.9mm per rainy day — heavy summer thunderstorms that pass, not persistent rain. What you should expect is roughly one rainy interval every other day, usually building in the afternoon. If your itinerary has no indoor fallbacks, July will disrupt it. If it does, July works. June is simply the better version of the same trip: warmer at 28.1°C (82.6°F) and less than a third of the rain.
Should I go in September or May?
September if you want warmth, May if you want reliability. September is 2.2°C warmer by day (21.7°C vs 19.5°C) and 3.5°C warmer at night (13.3°C vs 9.8°C), which makes evenings outdoors much more pleasant. But September dropped 104.2mm of rain against May's 56.3mm — nearly double, over one fewer rainy day, so September's rain is significantly heavier when it falls. May's showers are 4.7mm each and easy to shrug off.
Do these numbers apply to the Alps?
No. Every figure here was measured in Vienna, which sits at about 170m in the flat east of the country. Alpine towns like Innsbruck, and anywhere higher, run several degrees colder and receive substantially more precipitation, much of it as snow between roughly November and April. Use the Vienna data for Vienna, Graz, and the Danube valley; check a local forecast for anything in the mountains, and assume it will be colder than the number you see here.
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