| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -1.2° | -5.9° | 58.5mm | 18.3 | 3 |
| February | 0.6° | -4.4° | 41.6mm | 14 | 7 |
| March | 5.4° | -2.2° | 47.3mm | 13.4 | 20 |
| April | 12.5° | 2.2° | 29.7mm | 10.9 | 54 |
| May | 17.7° | 7.1° | 58.5mm | 12.7 | 67 |
| June | 20.4° | 9.7° | 69.7mm | 13.7 | 73 |
| July | 21.9° | 11.9° | 73.8mm | 14.3 | 71 |
| August | 21.9° | 12.1° | 68.7mm | 12.6 | 75 |
| September | 16.4° | 8° | 53.5mm | 11.2 | 66 |
| October | 10° | 3.7° | 41.9mm | 13.3 | 41 |
| November | 3° | -1.4° | 42.5mm | 13.2 | 14 |
| December | -1.3° | -5.5° | 55.9mm | 15.7 | 4 |
January in Ústí nad Labem averages a daily high of -1.2°C with nights around -5.9°C. Expect roughly 18.3 wet days totalling 58.5mm. A hard month to visit for comfort alone.
February in Ústí nad Labem averages a daily high of 0.6°C with nights around -4.4°C. Expect roughly 14 wet days totalling 41.6mm. A hard month to visit for comfort alone.
March in Ústí nad Labem averages a daily high of 5.4°C with nights around -2.2°C. Expect roughly 13.4 wet days totalling 47.3mm. A hard month to visit for comfort alone.
April in Ústí nad Labem averages a daily high of 12.5°C with nights around 2.2°C. Expect roughly 10.9 wet days totalling 29.7mm. Demanding conditions — pack for it and plan indoor options.
May in Ústí nad Labem averages a daily high of 17.7°C with nights around 7.1°C. Expect roughly 12.7 wet days totalling 58.5mm. Generally workable, with some weather to plan around.
June in Ústí nad Labem averages a daily high of 20.4°C with nights around 9.7°C. Expect roughly 13.7 wet days totalling 69.7mm. Generally workable, with some weather to plan around.
July in Ústí nad Labem averages a daily high of 21.9°C with nights around 11.9°C. Expect roughly 14.3 wet days totalling 73.8mm. Generally workable, with some weather to plan around.
August in Ústí nad Labem averages a daily high of 21.9°C with nights around 12.1°C. Expect roughly 12.6 wet days totalling 68.7mm. Comfortable conditions for being outdoors all day.
September in Ústí nad Labem averages a daily high of 16.4°C with nights around 8°C. Expect roughly 11.2 wet days totalling 53.5mm. Generally workable, with some weather to plan around.
October in Ústí nad Labem averages a daily high of 10°C with nights around 3.7°C. Expect roughly 13.3 wet days totalling 41.9mm. Demanding conditions — pack for it and plan indoor options.
November in Ústí nad Labem averages a daily high of 3°C with nights around -1.4°C. Expect roughly 13.2 wet days totalling 42.5mm. A hard month to visit for comfort alone.
December in Ústí nad Labem averages a daily high of -1.3°C with nights around -5.5°C. Expect roughly 15.7 wet days totalling 55.9mm. 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. Ústí nad Labem peaks at 75.
Based on 30 years of records, May–August scores highest for comfort in Ústí nad Labem, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 21.9°C.
July is the wettest, averaging 73.8mm of rain across roughly 14.3 wet days.
December is the coolest month, with average daily highs around -1.3°C.