Climate averages 1991–2020
Joensuu weather
in May.
A cool, moderately wet month: the 5th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a cool month in Joensuu: daytime highs average 11.2°C and nights cool to about 4.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 49 mm of rain on roughly 9 days, which makes May a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 17 h 50 min on an average May day.
The nearest other city in this atlas is Kuopio (111 km away). In May its highs average 12.1°C, 0.9°C warmer than Joensuu, with 53 mm of rain.
Among the 13 cities listed in Finland, Joensuu ranks 12th of 13 for the warmest May highs and 12th of 13 for the driest May (rainfall, lowest first). The mean May high of those 13 cities is 13.2°C; Joensuu is 2.1°C cooler than that mean.
From May to June, average highs rise by 5.9°C to 17.1°C, and monthly rainfall rises from 49 mm to 75 mm.
The annual picture
May 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
Joensuu climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -6.0°C-9.9°C | -9.9°C | 41 | 10.7 | 6.06 h |
| February | -6.4°C-10.2°C | -10.2°C | 35 | 9.5 | 8.79 h |
| March | -2.0°C-6.3°C | -6.3°C | 34 | 9.0 | 11.712 h |
| April | 3.9°C-2.0°C | -2.0°C | 32 | 7.9 | 14.815 h |
| May, selected | 11.2°C4.4°C | 4.4°C | 49 | 9.3 | 17.818 h |
| June | 17.1°C11.5°C | 11.5°C | 75 | 12.7 | 19.820 h |
| July | 20.2°C14.9°C | 14.9°C | 85 | 12.7 | 18.919 h |
| August | 18.1°C13.6°C | 13.6°C | 82 | 13.2 | 16.116 h |
| September | 12.4°C8.8°C | 8.8°C | 68 | 11.9 | 13.113 h |
| October | 5.2°C2.7°C | 2.7°C | 63 | 12.4 | 10.010 h |
| November | 0.0°C-2.6°C | -2.6°C | 55 | 11.6 | 7.07 h |
| December | -3.3°C-6.8°C | -6.8°C | 53 | 12.7 | 5.15 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
May in nearby cities
- Kuopio in MayFinland · 111 kmHigh 12.1°C · Low 4.4°C · 53 mm rain
- Lappeenranta in MayFinland · 190 kmHigh 14.0°C · Low 5.2°C · 46 mm rain
- Jyväskylä in MayFinland · 212 kmHigh 13.5°C · Low 5.1°C · 48 mm rain
- Vyborg in MayRussia · 217 kmHigh 13.6°C · Low 5.7°C · 45 mm rain
- Kouvola in MayFinland · 251 kmHigh 14.7°C · Low 5.8°C · 46 mm rain
- Petrozavodsk in MayRussia · 254 kmHigh 12.1°C · Low 4.6°C · 55 mm rain
- Lahti in MayFinland · 281 kmHigh 14.5°C · Low 5.6°C · 48 mm rain
- Saint Petersburg in MayRussia · 298 kmHigh 14.0°C · Low 6.1°C · 50 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 Joensuu) is explained once on the Joensuu year overview and on the Sources, method and limits page.