Weather Comparison
Side-by-side weather comparison for April
| Metric | Helsinki | Tallinn | Better |
|---|---|---|---|
| Average HighHigher is warmer | 7°C (45°F) | 9°C (48°F)▲ | Tallinn |
| Average LowHigher is milder | 0°C (32°F) | 1°C (34°F)▲ | Tallinn |
| Rain DaysFewer is drier | 9 days | 9 days | Tie |
| PrecipitationLess is drier | 37 mm | 37 mm | Tie |
| Sunshine HoursMore is sunnier | 10h/day | 10h/day | Tie |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 18 km/h▲ | 20 km/h | Helsinki |
Helsinki and Tallinn are closely matched in April. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.
Helsinki is on the cooler side at 7°C, requiring warmer clothing. Tallinn is cooler at 9°C.
For travelers who prioritize dry weather, both cities are equally dry in April.
Helsinki reaches an average high of 7°C (45°F) and drops to 0°C (32°F) at night during April. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
Tallinn averages 9°C (48°F) for the high and 1°C (34°F) for the low, with a daily range of 8°C. The 2°C difference is noticeable but not dramatic.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in April.
Helsinki receives approximately 37 mm of rainfall across 9 rain days during April. You can expect rain roughly every other day.
Tallinn sees 37 mm over 9 rain days. Both cities are equally rainy this month.
Both cities share similar humidity levels at 65%.
Highs of 7°C, lows of 0°C, 9 rain days
Highs of 9°C, lows of 1°C, 9 rain days
Pack for both: heavy winter coat, thermal base layers, warm gloves and hat, insulated boots, a packable rain jacket, an umbrella, a warm scarf. These items are useful in either destination during April.
The table below shows average high temperatures and rain days for every month. April is highlighted for quick reference.
| Month | Helsinki | Tallinn | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | -2°C | 11d | -1°C | 11d |
| Feb | -3°C | 9d | -2°C | 9d |
| Mar | 1°C | 9d | 2°C | 9d |
| Apr | 7°C | 9d | 9°C | 9d |
| May | 13°C | 9d | 15°C | 9d |
| Jun | 17°C | 12d | 19°C | 11d |
| Jul | 21°C | 12d | 21°C | 12d |
| Aug | 20°C | 12d | 20°C | 14d |
| Sep | 15°C | 10d | 15°C | 12d |
| Oct | 8°C | 12d | 9°C | 13d |
| Nov | 3°C | 12d | 4°C | 11d |
| Dec | 0°C | 12d | 1°C | 12d |
Helsinki Weather in April
Full forecast, packing tips, and activities
Tallinn Weather in April
Full forecast, packing tips, and activities