Climate averages 1991–2020
Kouvola weather
in April.
A cold, fairly dry month: the 6th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cold month in Kouvola: daytime highs average 7.3°C and nights cool to about -0.9°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 35 mm of rain on roughly 9 days, which makes April a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 37 min on an average April day.
The nearest other city in this atlas is Lahti (58 km away). In April its highs average 7.4°C, about as warm as Kouvola, with 35 mm of rain.
Among the 13 cities listed in Finland, Kouvola ranks 4th of 13 for the warmest April highs and joint 7th of 13 for the driest April (rainfall, lowest first). The mean April high of those 13 cities is 6.3°C; Kouvola is 1.0°C warmer than that mean.
From April to May, average highs rise by 7.4°C to 14.7°C, and monthly rainfall rises from 35 mm to 46 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
Kouvola climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.8°C-8.3°C | -8.3°C | 44 | 10.6 | 6.67 h |
| February | -3.9°C-8.8°C | -8.8°C | 40 | 9.0 | 9.09 h |
| March | 0.5°C-5.8°C | -5.8°C | 36 | 8.6 | 11.712 h |
| April, selected | 7.3°C-0.9°C | -0.9°C | 35 | 8.9 | 14.615 h |
| May | 14.7°C5.8°C | 5.8°C | 46 | 9.8 | 17.317 h |
| June | 18.9°C11.0°C | 11.0°C | 70 | 11.8 | 19.019 h |
| July | 21.5°C14.1°C | 14.1°C | 66 | 11.5 | 18.318 h |
| August | 19.8°C12.9°C | 12.9°C | 66 | 10.9 | 15.816 h |
| September | 14.2°C8.4°C | 8.4°C | 53 | 9.9 | 13.013 h |
| October | 7.0°C2.9°C | 2.9°C | 57 | 10.9 | 10.110 h |
| November | 1.7°C-1.5°C | -1.5°C | 53 | 11.3 | 7.47 h |
| December | -1.6°C-5.5°C | -5.5°C | 54 | 11.7 | 5.86 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
- Lahti in AprilFinland · 58 kmHigh 7.4°C · Low -0.6°C · 35 mm rain
- Lappeenranta in AprilFinland · 83 kmHigh 5.6°C · Low -1.2°C · 33 mm rain
- Vantaa in AprilFinland · 111 kmHigh 8.1°C · Low 0.0°C · 37 mm rain
- Vyborg in AprilRussia · 113 kmHigh 6.7°C · Low -0.4°C · 35 mm rain
- Helsinki in AprilFinland · 124 kmHigh 6.9°C · Low 0.3°C · 37 mm rain
- Espoo in AprilFinland · 134 kmHigh 6.7°C · Low 0.5°C · 37 mm rain
- Jyväskylä in AprilFinland · 161 kmHigh 6.0°C · Low -1.4°C · 35 mm rain
- Tampere in AprilFinland · 171 kmHigh 6.3°C · Low -0.7°C · 33 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 Kouvola) is explained once on the Kouvola year overview and on the Sources, method and limits page.