| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.5° | -3.9° | 117.4mm | 12.7 | 16 |
| February | 6.8° | -3° | 107.9mm | 10.5 | 29 |
| March | 10.6° | -0.4° | 89.7mm | 10.5 | 45 |
| April | 15.4° | 3.4° | 98.7mm | 12 | 61 |
| May | 20.2° | 7.6° | 110mm | 12.1 | 76 |
| June | 24.7° | 11° | 75mm | 8.9 | 82 |
| July | 27.1° | 12.5° | 60mm | 7.1 | 85 |
| August | 27.2° | 12.3° | 76.8mm | 7.5 | 84 |
| September | 21.2° | 8.5° | 159.8mm | 10 | 80 |
| October | 16.7° | 5.2° | 141.2mm | 10.8 | 68 |
| November | 10.4° | 2° | 205.1mm | 14.5 | 40 |
| December | 5.4° | -2.3° | 157.7mm | 13.3 | 20 |
January in Bihać averages a daily high of 4.5°C with nights around -3.9°C. Expect roughly 12.7 wet days totalling 117.4mm. A hard month to visit for comfort alone.
February in Bihać averages a daily high of 6.8°C with nights around -3°C. Expect roughly 10.5 wet days totalling 107.9mm. A hard month to visit for comfort alone.
March in Bihać averages a daily high of 10.6°C with nights around -0.4°C. Expect roughly 10.5 wet days totalling 89.7mm. Demanding conditions — pack for it and plan indoor options.
April in Bihać averages a daily high of 15.4°C with nights around 3.4°C. Expect roughly 12 wet days totalling 98.7mm. Generally workable, with some weather to plan around.
May in Bihać averages a daily high of 20.2°C with nights around 7.6°C. Expect roughly 12.1 wet days totalling 110mm. Comfortable conditions for being outdoors all day.
June in Bihać averages a daily high of 24.7°C with nights around 11°C. Expect roughly 8.9 wet days totalling 75mm. Comfortable conditions for being outdoors all day.
July in Bihać averages a daily high of 27.1°C with nights around 12.5°C. Expect roughly 7.1 wet days totalling 60mm. Comfortable conditions for being outdoors all day.
August in Bihać averages a daily high of 27.2°C with nights around 12.3°C. Expect roughly 7.5 wet days totalling 76.8mm. Comfortable conditions for being outdoors all day.
September in Bihać averages a daily high of 21.2°C with nights around 8.5°C. Expect roughly 10 wet days totalling 159.8mm. Comfortable conditions for being outdoors all day.
October in Bihać averages a daily high of 16.7°C with nights around 5.2°C. Expect roughly 10.8 wet days totalling 141.2mm. Generally workable, with some weather to plan around.
November in Bihać averages a daily high of 10.4°C with nights around 2°C. Expect roughly 14.5 wet days totalling 205.1mm. Demanding conditions — pack for it and plan indoor options.
December in Bihać averages a daily high of 5.4°C with nights around -2.3°C. Expect roughly 13.3 wet days totalling 157.7mm. 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. Bihać peaks at 85.
Based on 30 years of records, June–September scores highest for comfort in Bihać, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 27.2°C.
November is the wettest, averaging 205.1mm of rain across roughly 14.5 wet days.
January is the coolest month, with average daily highs around 4.5°C.