| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -1° | -5.7° | 56.4mm | 18.3 | 3 |
| February | -0.7° | -5.8° | 40.6mm | 15 | 3 |
| March | 3.1° | -3.7° | 33.6mm | 12.1 | 13 |
| April | 9.5° | 0.7° | 34.1mm | 9.9 | 45 |
| May | 15.5° | 5.3° | 37.5mm | 9.1 | 67 |
| June | 19.8° | 10.2° | 66.3mm | 11 | 77 |
| July | 22.3° | 13.4° | 86.2mm | 12.3 | 75 |
| August | 21.3° | 12.5° | 80.2mm | 13 | 74 |
| September | 16.3° | 8.6° | 57.9mm | 12.3 | 64 |
| October | 9.9° | 4.1° | 78mm | 16.4 | 38 |
| November | 4.4° | 0.3° | 67.1mm | 17.8 | 18 |
| December | 0.9° | -3.4° | 59.5mm | 19.1 | 7 |
January in Põhja-Tallinn averages a daily high of -1°C with nights around -5.7°C. Expect roughly 18.3 wet days totalling 56.4mm. A hard month to visit for comfort alone.
February in Põhja-Tallinn averages a daily high of -0.7°C with nights around -5.8°C. Expect roughly 15 wet days totalling 40.6mm. A hard month to visit for comfort alone.
March in Põhja-Tallinn averages a daily high of 3.1°C with nights around -3.7°C. Expect roughly 12.1 wet days totalling 33.6mm. A hard month to visit for comfort alone.
April in Põhja-Tallinn averages a daily high of 9.5°C with nights around 0.7°C. Expect roughly 9.9 wet days totalling 34.1mm. Demanding conditions — pack for it and plan indoor options.
May in Põhja-Tallinn averages a daily high of 15.5°C with nights around 5.3°C. Expect roughly 9.1 wet days totalling 37.5mm. Generally workable, with some weather to plan around.
June in Põhja-Tallinn averages a daily high of 19.8°C with nights around 10.2°C. Expect roughly 11 wet days totalling 66.3mm. Comfortable conditions for being outdoors all day.
July in Põhja-Tallinn averages a daily high of 22.3°C with nights around 13.4°C. Expect roughly 12.3 wet days totalling 86.2mm. Comfortable conditions for being outdoors all day.
August in Põhja-Tallinn averages a daily high of 21.3°C with nights around 12.5°C. Expect roughly 13 wet days totalling 80.2mm. Generally workable, with some weather to plan around.
September in Põhja-Tallinn averages a daily high of 16.3°C with nights around 8.6°C. Expect roughly 12.3 wet days totalling 57.9mm. Generally workable, with some weather to plan around.
October in Põhja-Tallinn averages a daily high of 9.9°C with nights around 4.1°C. Expect roughly 16.4 wet days totalling 78mm. Demanding conditions — pack for it and plan indoor options.
November in Põhja-Tallinn averages a daily high of 4.4°C with nights around 0.3°C. Expect roughly 17.8 wet days totalling 67.1mm. A hard month to visit for comfort alone.
December in Põhja-Tallinn averages a daily high of 0.9°C with nights around -3.4°C. Expect roughly 19.1 wet days totalling 59.5mm. 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. Põhja-Tallinn peaks at 77.
Based on 30 years of records, June–August scores highest for comfort in Põhja-Tallinn, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 22.3°C.
July is the wettest, averaging 86.2mm of rain across roughly 12.3 wet days.
January is the coolest month, with average daily highs around -1°C.