Climate averages 1991–2020
Turku weather
in April.
A cool, fairly dry month: the 7th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Turku: daytime highs average 8.2°C and nights cool to about 0.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 33 mm of rain on roughly 8 days, which makes April a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 34 min on an average April day.
The nearest other city in this atlas is Pori (117 km away). In April its highs average 7.0°C, 1.2°C cooler than Turku, with 33 mm of rain.
Among the 13 cities listed in Finland, Turku ranks 1st of 13 for the warmest April highs and joint 3rd of 13 for the driest April (rainfall, lowest first). The mean April high of those 13 cities is 6.3°C; Turku is 1.9°C warmer than that mean.
From April to May, average highs rise by 6.2°C to 14.4°C, and monthly rainfall rises from 33 mm to 41 mm.
The annual picture
April in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Turku climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.5°C-6.0°C | -6.0°C | 49 | 10.1 | 6.77 h |
| February | -2.0°C-7.2°C | -7.2°C | 38 | 8.5 | 9.09 h |
| March | 1.7°C-4.7°C | -4.7°C | 35 | 8.2 | 11.712 h |
| April, selected | 8.2°C0.1°C | 0.1°C | 33 | 8.0 | 14.615 h |
| May | 14.4°C5.4°C | 5.4°C | 41 | 8.9 | 17.217 h |
| June | 18.5°C10.2°C | 10.2°C | 68 | 10.8 | 18.919 h |
| July | 21.4°C13.6°C | 13.6°C | 85 | 12.3 | 18.118 h |
| August | 20.1°C12.9°C | 12.9°C | 80 | 12.5 | 15.716 h |
| September | 15.0°C8.8°C | 8.8°C | 58 | 9.5 | 13.013 h |
| October | 8.3°C3.7°C | 3.7°C | 59 | 10.4 | 10.210 h |
| November | 3.5°C0.0°C | 0.0°C | 55 | 10.9 | 7.58 h |
| December | 0.4°C-3.5°C | -3.5°C | 56 | 11.6 | 5.96 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Pori in AprilFinland · 117 kmHigh 7.0°C · Low 0.6°C · 33 mm rain
- Espoo in AprilFinland · 134 kmHigh 6.7°C · Low 0.5°C · 37 mm rain
- Mariehamn in AprilAland Islands · 135 kmHigh 5.2°C · Low 1.8°C · 29 mm rain
- Tampere in AprilFinland · 142 kmHigh 6.3°C · Low -0.7°C · 33 mm rain
- Helsinki in AprilFinland · 150 kmHigh 6.9°C · Low 0.3°C · 37 mm rain
- Vantaa in AprilFinland · 153 kmHigh 8.1°C · Low 0.0°C · 37 mm rain
- Tallinn in AprilEstonia · 179 kmHigh 8.7°C · Low 0.9°C · 36 mm rain
- Lahti in AprilFinland · 194 kmHigh 7.4°C · Low -0.6°C · 35 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Turku) is explained once on the Turku year overview and on the Sources, method and limits page.