Estonia
Tallinn in August: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Tallinn in August is climatically well suited to city breaks and active holidays and hiking. The average daily high is around 20 °C, and the sea is about 18 °C. With about 14 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
57/100 · #2
Warmth
#2
Dryness
#9
Sun
#4
Sea warmth
#1
Published best categories: City break, Active
Tallinn · AugustPhoto: Jorge Láscar · CC BY 2.0Climate facts
- Average high
- 20 °C
- Average low
- 15 °C
- Sea
- 18 °C
- Rainy days (est.)
- 14 rainy days (est.)
- Sun (est.)
- 5 h/day
- Humidity
- 77 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| July | 20 | 15 | 13 | 63 | 6.9 | 77 | 4.2 | 17 | 61 |
| August (selected) | 20 | 15 | 14 | 73 | 5.3 | 77 | 4.5 | 18 | 57 |
| September | 15 | 11 | 12 | 57 | 3.3 | 81 | 5.1 | 15 | 43 |
How do the previous and next months compare?
Baseline: August (57/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| July | +4 | +0.6 °C | +0.4 °C | -1 | -9.5 mm | +1.6 h | -0.4 % | -0.3 m/s | -0.9 °C |
| September | -14 | -4.6 °C | -4 °C | -2.5 | -15.7 mm | -2 h | +3.9 % | +0.6 m/s | -2.7 °C |
All twelve months in context
Find a place to stay
Where to stay in Tallinn
Compare available stays, prices and cancellation terms for Tallinn on Booking.com.
Booking.comFind places to stayAffiliate link: there is no extra cost to you.
Useful next decisions
Frequently asked questions
How warm is Tallinn in August?
The average daily high is around 20 °C, with an average daily low of about 15 °C.
Can you swim in Tallinn in August?
The sea is about 18 °C (cold).
Does it rain a lot in Tallinn in August?
The curated estimate is about 14 rainy days per month, not a directly measured long-term average. Total precipitation averages around 73 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Tallinn?
By the climate score, July are the strongest months for Tallinn. August is not among them.