| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.6° | -1.3° | 44.5mm | 12.6 | 17 |
| February | 6.7° | 0.2° | 38mm | 10.1 | 35 |
| March | 11.2° | 2.7° | 48.7mm | 10.9 | 50 |
| April | 17.1° | 6.8° | 43.4mm | 9.6 | 72 |
| May | 21.3° | 11.1° | 81mm | 12 | 76 |
| June | 25.4° | 14.9° | 72.6mm | 11 | 78 |
| July | 27.4° | 16.6° | 77.3mm | 11.4 | 76 |
| August | 26.8° | 16.2° | 73.3mm | 10.1 | 80 |
| September | 21.2° | 12.1° | 72.7mm | 9.4 | 81 |
| October | 15.3° | 7.9° | 44.7mm | 9.5 | 66 |
| November | 9° | 3.8° | 43mm | 10.2 | 44 |
| December | 4.3° | -0.2° | 46.9mm | 11.6 | 23 |
January in Aspern averages a daily high of 3.6°C with nights around -1.3°C. Expect roughly 12.6 wet days totalling 44.5mm. A hard month to visit for comfort alone.
February in Aspern averages a daily high of 6.7°C with nights around 0.2°C. Expect roughly 10.1 wet days totalling 38mm. Demanding conditions — pack for it and plan indoor options.
March in Aspern averages a daily high of 11.2°C with nights around 2.7°C. Expect roughly 10.9 wet days totalling 48.7mm. Demanding conditions — pack for it and plan indoor options.
April in Aspern averages a daily high of 17.1°C with nights around 6.8°C. Expect roughly 9.6 wet days totalling 43.4mm. Generally workable, with some weather to plan around.
May in Aspern averages a daily high of 21.3°C with nights around 11.1°C. Expect roughly 12 wet days totalling 81mm. Comfortable conditions for being outdoors all day.
June in Aspern averages a daily high of 25.4°C with nights around 14.9°C. Expect roughly 11 wet days totalling 72.6mm. Comfortable conditions for being outdoors all day.
July in Aspern averages a daily high of 27.4°C with nights around 16.6°C. Expect roughly 11.4 wet days totalling 77.3mm. Comfortable conditions for being outdoors all day.
August in Aspern averages a daily high of 26.8°C with nights around 16.2°C. Expect roughly 10.1 wet days totalling 73.3mm. Comfortable conditions for being outdoors all day.
September in Aspern averages a daily high of 21.2°C with nights around 12.1°C. Expect roughly 9.4 wet days totalling 72.7mm. Comfortable conditions for being outdoors all day.
October in Aspern averages a daily high of 15.3°C with nights around 7.9°C. Expect roughly 9.5 wet days totalling 44.7mm. Generally workable, with some weather to plan around.
November in Aspern averages a daily high of 9°C with nights around 3.8°C. Expect roughly 10.2 wet days totalling 43mm. Demanding conditions — pack for it and plan indoor options.
December in Aspern averages a daily high of 4.3°C with nights around -0.2°C. Expect roughly 11.6 wet days totalling 46.9mm. A hard month to visit for comfort alone.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Aspern peaks at 81.
Based on 30 years of records, May–September scores highest for comfort in Aspern, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 27.4°C.
May is the wettest, averaging 81mm of rain across roughly 12 wet days.
January is the coolest month, with average daily highs around 3.6°C.