| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4° | 0.3° | 122.7mm | 18.3 | 16 |
| February | 4.7° | 0.3° | 112.1mm | 16.6 | 18 |
| March | 7.1° | 1.7° | 84.9mm | 16.8 | 28 |
| April | 11.1° | 3.9° | 63mm | 13.2 | 45 |
| May | 14.8° | 7.2° | 83.2mm | 13.7 | 56 |
| June | 17.8° | 10.1° | 76.3mm | 11.7 | 70 |
| July | 19.3° | 12.4° | 131.9mm | 17.4 | 68 |
| August | 19.2° | 12.5° | 149.9mm | 18.3 | 67 |
| September | 16.6° | 10.6° | 167.6mm | 18.2 | 59 |
| October | 12° | 7° | 172.7mm | 20.1 | 44 |
| November | 8.1° | 4.1° | 157.6mm | 18.9 | 32 |
| December | 5.3° | 1.5° | 161.9mm | 20.6 | 22 |
January in Stavanger averages a daily high of 4°C with nights around 0.3°C. Expect roughly 18.3 wet days totalling 122.7mm. A hard month to visit for comfort alone.
February in Stavanger averages a daily high of 4.7°C with nights around 0.3°C. Expect roughly 16.6 wet days totalling 112.1mm. A hard month to visit for comfort alone.
March in Stavanger averages a daily high of 7.1°C with nights around 1.7°C. Expect roughly 16.8 wet days totalling 84.9mm. A hard month to visit for comfort alone.
April in Stavanger averages a daily high of 11.1°C with nights around 3.9°C. Expect roughly 13.2 wet days totalling 63mm. Demanding conditions — pack for it and plan indoor options.
May in Stavanger averages a daily high of 14.8°C with nights around 7.2°C. Expect roughly 13.7 wet days totalling 83.2mm. Generally workable, with some weather to plan around.
June in Stavanger averages a daily high of 17.8°C with nights around 10.1°C. Expect roughly 11.7 wet days totalling 76.3mm. Generally workable, with some weather to plan around.
July in Stavanger averages a daily high of 19.3°C with nights around 12.4°C. Expect roughly 17.4 wet days totalling 131.9mm. Generally workable, with some weather to plan around.
August in Stavanger averages a daily high of 19.2°C with nights around 12.5°C. Expect roughly 18.3 wet days totalling 149.9mm. Generally workable, with some weather to plan around.
September in Stavanger averages a daily high of 16.6°C with nights around 10.6°C. Expect roughly 18.2 wet days totalling 167.6mm. Generally workable, with some weather to plan around.
October in Stavanger averages a daily high of 12°C with nights around 7°C. Expect roughly 20.1 wet days totalling 172.7mm. Demanding conditions — pack for it and plan indoor options.
November in Stavanger averages a daily high of 8.1°C with nights around 4.1°C. Expect roughly 18.9 wet days totalling 157.6mm. A hard month to visit for comfort alone.
December in Stavanger averages a daily high of 5.3°C with nights around 1.5°C. Expect roughly 20.6 wet days totalling 161.9mm. 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. Stavanger peaks at 70.
Based on 30 years of records, June–August scores highest for comfort in Stavanger, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 19.3°C.
October is the wettest, averaging 172.7mm of rain across roughly 20.1 wet days.
January is the coolest month, with average daily highs around 4°C.