Tallinn weather in August
August in Tallinn: nice, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Tallinn · #127 of 604 destinations to visit in August · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Tallinn climate normals — August
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 58°F | |
| Feels like (high) | 20°C / 68°F | |
| Rainfall | 91 mm / 3.6 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 14°C / 58°F | |
| Sunshine | 11 h/day | |
| Daylight | 15.5 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Tallinn in August — FAQ
- Is August a good time to visit Tallinn?
- August in Tallinn: nice, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Tallinn on SeasonMap's comfort score (88/100).
- What is the weather like in Tallinn in August?
- In August, Tallinn averages a daily high of 20.7°C and a low of 14.3°C, with about 90.9 mm of rain over roughly 13.4 rainy days.
- What is the air quality in Tallinn in August?
- Tallinn has a mean US Air Quality Index of about 44 in August.