Weather in Graz in March
Austria · 20-year averages, March
Shoulder season. March is shoulder season in Graz — cheaper, quieter, and a genuine gamble. Highs sit at 10.7 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.
March ranks 8 of 12 in Graz: past the worst of the year but short of September, which is the month to book if the dates are open.
Rain on 8 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 10.7 °C the difference between a good day and a miserable one is entirely down to what you are wearing.
What the averages hide
Averages flatten a month, and this one hides a few things: 14 nights fall below freezing. Across the twenty years measured, the hottest March day reached 22 °C and the coldest night fell to -15.6 °C, and the wettest single day dropped 34 mm — roughly 79% of the month's rain in one day.
March is moderately variable: 5 mm in the driest year against 86 mm in the wettest, around an average of 43 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.
Wind is light at 7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 78%, which at 10.7 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.
How March sits in the year
The month is on the way up: 5.2 °C warmer than February, and April adds another 5.5 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in March
11.8 hours of daylight, gaining 1.7 hours across the month. That is between Graz's extremes of 15.9 and 8.5 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 31.3 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March in Graz versus nearby
If Graz is one option among several, the nearby comparison is worth making. Villach is close enough to be a coin toss — within a degree on temperature, 2 days more rain. Zagreb is close enough to be a coin toss — within a degree on temperature, 1 day more rain.
So: March is a compromise. September is 22 points better and is what Graz is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Graz
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 3.4 | -3.9 | 7 | 32 | 87 | 8.9 | 30 |
| February | 5.5 | -3 | 8 | 40 | 84 | 10.3 | 30 |
| March | 10.7 | 0.2 | 8 | 43 | 78 | 11.8 | 56 |
| April | 16.2 | 4.8 | 10 | 52 | 73 | 13.5 | 70 |
| May | 20.6 | 9.4 | 15 | 90 | 71 | 15 | 73 |
| June | 25.1 | 13.8 | 15 | 104 | 68 | 15.9 | 72 |
| July | 27.4 | 15.8 | 16 | 107 | 64 | 15.6 | 68 |
| August | 26.7 | 15.4 | 14 | 110 | 66 | 14.3 | 73 |
| September | 21.3 | 10.6 | 11 | 96 | 73 | 12.6 | 78 |
| October | 16.2 | 6 | 9 | 61 | 81 | 11 | 71 |
| November | 9.7 | 1.9 | 8 | 56 | 87 | 9.4 | 48 |
| December | 4.2 | -2.7 | 8 | 42 | 88 | 8.5 | 30 |
See all twelve months in Graz, or where else to go in March.
Planning the rest of the trip
- Flight time to Graz how long you are actually in the air
- Graz time zone and the difference from home
- Days until your trip count down to the departure date