Estonia
Tallinn in April: weather, sea & travel advice
This month's data profile
Clear transition month
Tallinn in April is climatically mixed. The average daily high is around 6 °C, and the sea is about 2 °C. With about 10 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
33/100 · #6
Warmth
#7
Dryness
#2
Sun
#5
Sea warmth
#9
Published best categories: none
Tallinn · AprilPhoto: Jorge Láscar · CC BY 2.0Climate facts
- Average high
- 6 °C
- Average low
- 1 °C
- Sea
- 2 °C
- Rainy days (est.)
- 10 rainy days (est.)
- Sun (est.)
- 5 h/day
- Humidity
- 85 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| March | 1 | -4 | 10 | 42 | 2.8 | 90 | 5.0 | 1 | 27 |
| April (selected) | 6 | 1 | 10 | 44 | 4.8 | 85 | 4.5 | 2 | 33 |
| May | 12 | 6 | 9 | 48 | 6.8 | 79 | 4.1 | 6 | 42 |
How do the previous and next months compare?
Baseline: April (33/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| March | -6 | -5.6 °C | -4.6 °C | +0.6 | -2 mm | -2 h | +5.5 % | +0.5 m/s | -1.5 °C |
| May | +9 | +5.8 °C | +5 °C | -0.3 | +3.6 mm | +2 h | -5.9 % | -0.4 m/s | +4 °C |
All twelve months in context

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Frequently asked questions
How warm is Tallinn in April?
The average daily high is around 6 °C, with an average daily low of about 1 °C.
Can you swim in Tallinn in April?
The sea is about 2 °C (cold).
Does it rain a lot in Tallinn in April?
The curated estimate is about 10 rainy days per month, not a directly measured long-term average. Total precipitation averages around 44 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. April is not among them.