Climate averages 1991–2020
Kuopio weather
in September.
A cool, moderately wet month: the 4th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a cool month in Kuopio: daytime highs average 12.6°C and nights cool to about 8.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 65 mm of rain on roughly 12 days, which makes September a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 04 min on an average September day.
The nearest other city in this atlas is Joensuu (111 km away). In September its highs average 12.4°C, about as warm as Kuopio, with 68 mm of rain.
Among the 13 cities listed in Finland, Kuopio ranks 11th of 13 for the warmest September highs and 12th of 13 for the driest September (rainfall, lowest first). The mean September high of those 13 cities is 13.8°C; Kuopio is 1.2°C cooler than that mean.
From September to October, average highs fall by 7.1°C to 5.5°C, and monthly rainfall falls from 65 mm to 59 mm.
The annual picture
September 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
Kuopio climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -5.4°C-9.4°C | -9.4°C | 40 | 10.5 | 5.96 h |
| February | -5.8°C-9.7°C | -9.7°C | 34 | 8.6 | 8.79 h |
| March | -1.7°C-6.0°C | -6.0°C | 33 | 9.1 | 11.712 h |
| April | 4.1°C-1.7°C | -1.7°C | 35 | 8.2 | 14.915 h |
| May | 12.1°C4.4°C | 4.4°C | 53 | 10.0 | 17.918 h |
| June | 17.6°C10.6°C | 10.6°C | 77 | 12.4 | 20.020 h |
| July | 20.4°C14.2°C | 14.2°C | 89 | 13.6 | 19.119 h |
| August | 18.3°C12.9°C | 12.9°C | 82 | 12.8 | 16.216 h |
| September, selected | 12.6°C8.3°C | 8.3°C | 65 | 11.6 | 13.113 h |
| October | 5.5°C2.7°C | 2.7°C | 59 | 11.9 | 10.010 h |
| November | 0.5°C-2.1°C | -2.1°C | 55 | 11.8 | 6.97 h |
| December | -2.8°C-6.3°C | -6.3°C | 51 | 12.5 | 5.05 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
September in nearby cities
- Joensuu in SeptemberFinland · 111 kmHigh 12.4°C · Low 8.8°C · 68 mm rain
- Jyväskylä in SeptemberFinland · 124 kmHigh 13.2°C · Low 8.1°C · 54 mm rain
- Lappeenranta in SeptemberFinland · 206 kmHigh 13.9°C · Low 8.6°C · 56 mm rain
- Kouvola in SeptemberFinland · 231 kmHigh 14.2°C · Low 8.4°C · 53 mm rain
- Lahti in SeptemberFinland · 237 kmHigh 14.1°C · Low 8.5°C · 51 mm rain
- Vyborg in SeptemberRussia · 249 kmHigh 14.2°C · Low 9.3°C · 59 mm rain
- Tampere in SeptemberFinland · 254 kmHigh 13.5°C · Low 8.8°C · 53 mm rain
- Oulu in SeptemberFinland · 259 kmHigh 12.2°C · Low 7.5°C · 56 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 Kuopio) is explained once on the Kuopio year overview and on the Sources, method and limits page.