| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.2° | 0.3° | 35.8mm | 13.4 | 17 |
| February | 3.4° | 0.3° | 29.2mm | 11.7 | 21 |
| March | 5.5° | 1.4° | 26.9mm | 10.6 | 31 |
| April | 10.1° | 4.5° | 27mm | 8.3 | 52 |
| May | 15.1° | 8.9° | 36.4mm | 9.7 | 65 |
| June | 19.2° | 12.9° | 46.5mm | 10.2 | 77 |
| July | 21.5° | 15.2° | 53.3mm | 10.9 | 78 |
| August | 21.5° | 15.5° | 69.1mm | 11.6 | 77 |
| September | 17.8° | 12.8° | 45.4mm | 9.8 | 73 |
| October | 12.7° | 9° | 49.7mm | 13.4 | 50 |
| November | 8.1° | 5.2° | 43mm | 13.7 | 35 |
| December | 4.8° | 1.9° | 41mm | 14.2 | 23 |
January in Roskilde averages a daily high of 3.2°C with nights around 0.3°C. Expect roughly 13.4 wet days totalling 35.8mm. A hard month to visit for comfort alone.
February in Roskilde averages a daily high of 3.4°C with nights around 0.3°C. Expect roughly 11.7 wet days totalling 29.2mm. A hard month to visit for comfort alone.
March in Roskilde averages a daily high of 5.5°C with nights around 1.4°C. Expect roughly 10.6 wet days totalling 26.9mm. A hard month to visit for comfort alone.
April in Roskilde averages a daily high of 10.1°C with nights around 4.5°C. Expect roughly 8.3 wet days totalling 27mm. Demanding conditions — pack for it and plan indoor options.
May in Roskilde averages a daily high of 15.1°C with nights around 8.9°C. Expect roughly 9.7 wet days totalling 36.4mm. Generally workable, with some weather to plan around.
June in Roskilde averages a daily high of 19.2°C with nights around 12.9°C. Expect roughly 10.2 wet days totalling 46.5mm. Comfortable conditions for being outdoors all day.
July in Roskilde averages a daily high of 21.5°C with nights around 15.2°C. Expect roughly 10.9 wet days totalling 53.3mm. Comfortable conditions for being outdoors all day.
August in Roskilde averages a daily high of 21.5°C with nights around 15.5°C. Expect roughly 11.6 wet days totalling 69.1mm. Comfortable conditions for being outdoors all day.
September in Roskilde averages a daily high of 17.8°C with nights around 12.8°C. Expect roughly 9.8 wet days totalling 45.4mm. Generally workable, with some weather to plan around.
October in Roskilde averages a daily high of 12.7°C with nights around 9°C. Expect roughly 13.4 wet days totalling 49.7mm. Demanding conditions — pack for it and plan indoor options.
November in Roskilde averages a daily high of 8.1°C with nights around 5.2°C. Expect roughly 13.7 wet days totalling 43mm. Demanding conditions — pack for it and plan indoor options.
December in Roskilde averages a daily high of 4.8°C with nights around 1.9°C. Expect roughly 14.2 wet days totalling 41mm. 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. Roskilde peaks at 78.
Based on 30 years of records, June–September scores highest for comfort in Roskilde, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 21.5°C.
August is the wettest, averaging 69.1mm of rain across roughly 11.6 wet days.
January is the coolest month, with average daily highs around 3.2°C.