Temperature
Cold by day, cold at night.
Cold days.
Cold by day, cold at night.
Several rainy days. About 13 wet days, the highest monthly average.
Sunshine is limited, with cloud often dominating.
Humidity is rarely noticeable in the cool air.
In October, afternoons feel about 39° and nights feel near 35°.
Mostly cloudy skies this month.
Breezy October days can feel brisker in open spots.
October late afternoons are around 48°F, easing to about 46°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 29 | 22 | 1.8 | 12 | 0.8 | 88 |
| Feb | 29 | 21 | 1.4 | 10 | 2.0 | 86 |
| Mar | 35 | 25 | 1.2 | 8 | 4.1 | 80 |
| Apr | 46 | 34 | 1.4 | 9 | 6.2 | 74 |
| May | 56 | 42 | 1.6 | 9 | 8.9 | 70 |
| Jun | 64 | 51 | 2.7 | 11 | 10.1 | 74 |
| Jul | 70 | 58 | 3.0 | 13 | 9.0 | 76 |
| Aug | 68 | 56 | 3.1 | 13 | 7.4 | 78 |
| Sep | 60 | 49 | 2.3 | 11 | 4.7 | 81 |
| Oct | 49 | 41 | 2.6 | 13 | 3.0 | 84 |
| Nov | 40 | 34 | 2.1 | 12 | 1.0 | 88 |
| Dec | 34 | 28 | 2.0 | 12 | 0.6 | 88 |
Similar climates
Want a side-by-side climate view? Compare Tallinn with Oslo.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology