TallinnPhoto: Jorge Láscar · CC BY 2.0Estonia · Europe
Best time to visit Tallinn
Tallinn has one of Europe's best-preserved old towns. Summer is most pleasant; winter is cold and atmospheric.
Climate decision
Best travel months for Tallinn
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Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
June · Mean daily maximum
19.1 °C
1991–2025: 17 °C
+2 °C · higher
January · Wet days
16.6 days/month
1991–2025: 13.7 days/month
+2.9 days/month · higher
January · Monthly precipitation
74.4 mm/month
1991–2025: 57.1 mm/month
+17.3 mm/month · higher
June · Sunshine per day
7.8 h/day
1991–2025: 7.2 h/day
+0.6 h/day · higher
August · Sea temperature
18.3 °C
1991–2025: 17.5 °C
+0.8 °C · higher
July: 0/155 days at or above 30 °C; highest single value 28.6 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Coast and sea
Tallinn: the swimming season follows two curves
Average daily highs vary by 23 °C through the year, while the sea varies by 16.6 °C. Air and water temperature should therefore be considered separately.
The practical difference
The month with the highest daytime temperature and the month with the warmest sea need not define the same travel window. Rain and sunshine help resolve the trade-off.
Warmest sea
August · 17.5 °C
Highest average daily high
July · 20.5 °C
Fewest rainy days
May · 9.4
Most sunshine
June · 7.2 h
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| January | -2 | -6 | 14 | 57 | 0.4 | 94 | 5.8 | 2 | 17 |
| February | -3 | -7 | 11 | 43 | 1.1 | 94 | 5.3 | 1 | 23 |
| March | 1 | -4 | 10 | 42 | 2.8 | 90 | 5.0 | 1 | 27 |
| April | 6 | 1 | 10 | 44 | 4.8 | 85 | 4.5 | 2 | 33 |
| May | 12 | 6 | 9 | 48 | 6.8 | 79 | 4.1 | 6 | 42 |
| June | 17 | 11 | 12 | 68 | 7.2 | 77 | 4.2 | 12 | 51 |
| July | 20 | 15 | 13 | 63 | 6.9 | 77 | 4.2 | 17 | 61 |
| August | 20 | 15 | 14 | 73 | 5.3 | 77 | 4.5 | 18 | 57 |
| September | 15 | 11 | 12 | 57 | 3.3 | 81 | 5.1 | 15 | 43 |
| October | 9 | 5 | 14 | 73 | 1.4 | 87 | 5.6 | 11 | 21 |
| November | 4 | 1 | 15 | 69 | 0.5 | 91 | 5.8 | 7 | 16 |
| December | 0 | -3 | 15 | 59 | 0.2 | 93 | 6.0 | 5 | 15 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
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Where to stay in Tallinn
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The number is the overall climate score, not a similarity score.
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Frequently asked questions
When is the best time to visit Tallinn?
The strongest climate months are July. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Tallinn?
The average daily maximum temperature in Tallinn is highest in July at around 20 °C.
When is the sea warmest at Tallinn?
In August, at around 18 °C.