Climate averages 1991–2020
Pori weather
in April.
A cold, fairly dry month: the 7th warmest and one of the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cold month in Pori: daytime highs average 7.0°C and nights cool to about 0.6°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 (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 14 h 41 min on an average April day.
The nearest other city in this atlas is Tampere (106 km away). In April its highs average 6.3°C, 0.7°C cooler than Pori, with 33 mm of rain.
Among the 13 cities listed in Finland, Pori ranks 5th 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; Pori is 0.7°C warmer than that mean.
From April to May, average highs rise by 5.5°C to 12.5°C, and monthly rainfall rises from 33 mm to 39 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
Pori 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-5.3°C | -5.3°C | 43 | 10.2 | 6.46 h |
| February | -2.1°C-6.5°C | -6.5°C | 34 | 8.0 | 8.99 h |
| March | 1.2°C-4.1°C | -4.1°C | 33 | 8.3 | 11.712 h |
| April, selected | 7.0°C0.6°C | 0.6°C | 33 | 8.2 | 14.715 h |
| May | 12.5°C5.6°C | 5.6°C | 39 | 7.8 | 17.517 h |
| June | 16.8°C10.4°C | 10.4°C | 60 | 10.3 | 19.319 h |
| July | 20.0°C14.0°C | 14.0°C | 74 | 11.7 | 18.518 h |
| August | 19.0°C13.5°C | 13.5°C | 74 | 12.2 | 15.916 h |
| September | 14.1°C9.4°C | 9.4°C | 62 | 10.2 | 13.013 h |
| October | 7.7°C4.2°C | 4.2°C | 65 | 11.5 | 10.110 h |
| November | 3.2°C0.4°C | 0.4°C | 56 | 11.1 | 7.37 h |
| December | 0.4°C-2.9°C | -2.9°C | 52 | 11.5 | 5.66 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
- Tampere in AprilFinland · 106 kmHigh 6.3°C · Low -0.7°C · 33 mm rain
- Turku in AprilFinland · 117 kmHigh 8.2°C · Low 0.1°C · 33 mm rain
- Mariehamn in AprilAland Islands · 184 kmHigh 5.2°C · Low 1.8°C · 29 mm rain
- Espoo in AprilFinland · 210 kmHigh 6.7°C · Low 0.5°C · 37 mm rain
- Lahti in AprilFinland · 215 kmHigh 7.4°C · Low -0.6°C · 35 mm rain
- Vantaa in AprilFinland · 220 kmHigh 8.1°C · Low 0.0°C · 37 mm rain
- Jyväskylä in AprilFinland · 223 kmHigh 6.0°C · Low -1.4°C · 35 mm rain
- Helsinki in AprilFinland · 224 kmHigh 6.9°C · Low 0.3°C · 37 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 Pori) is explained once on the Pori year overview and on the Sources, method and limits page.