June
Best time
19°C / 10°C
12 rain days
mild, rainy
- comfortable temperatures (avg high 19°C / 66°F)
Best time to visit Tallinn
Tallinn, Estonia — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: June, July, August.
Best · June & July
About Tallinn
Tallinn is the capital and largest city of Estonia. Located on a bay in northern Estonia, on the shore of the Gulf of Finland of the Baltic Sea, it has a population of 452,563 as of 2026, making it the third most-populous city in the Baltics. As of 2024, the population of the Tallinn metropolitan area is estimated at 646,315.
— condensed from Wikipedia
Best months to visit
July
Best time
22°C / 13°C
12 rain days
warm, rainy
- comfortable temperatures (avg high 22°C / 72°F)
August
Best time
20°C / 12°C
12 rain days
mild, rainy
- comfortable temperatures (avg high 20°C / 68°F)
May
Best time
15°C / 6°C
11 rain days
cool, rainy
September
Best time
15°C / 8°C
13 rain days
cool, rainy
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OK — shoulder months
October
OK
9°C / 4°C
15 rain days
chilly, rainy
April
OK
9°C / 1°C
10 rain days
2 snow days
chilly, rainy
- manageable rain (10 days)
Months to skip
November
Skip
4°C / 0°C
16 rain days
4 snow days
cold, freezing nights, very wet, snowy
- heavy rain expected (16 days)
March
Skip
2°C / -5°C
12 rain days
7 snow days
cold, freezing nights, rainy, snowy
- freezing at night (-5°C)
- 7 snow days expected
December
Skip
0°C / -4°C
16 rain days
8 snow days
cold, freezing nights, very wet, snowy
- freezing at night (-4°C)
- heavy rain expected (16 days)
- 8 snow days expected
January
Skip
-2°C / -7°C
16 rain days
10 snow days
cold, freezing nights, very wet, snowy
- bitterly cold (overnight -7°C)
- heavy rain expected (16 days)
- 10 snow days expected
February
Skip
-3°C / -8°C
14 rain days
9 snow days
cold, freezing nights, rainy, snowy
- bitterly cold (overnight -8°C)
- heavy rain expected (14 days)
- 9 snow days expected
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.