Climate averages 1991–2020
Oulu weather
in January.
A freezing month with light precipitation: the 11th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a freezing month in Oulu: daytime highs average -5.5°C and nights cool to about -10.2°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 35 mm of precipitation on roughly 9 days, which makes January a month with light precipitation (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 5 h 06 min on an average January day.
The nearest other city in this atlas is Luleå (167 km away). In January its highs average -4.9°C, 0.6°C warmer than Oulu, with 41 mm of precipitation.
Among the 13 cities listed in Finland, Oulu ranks 12th of 13 for the warmest January highs and 1st of 13 for the driest January (precipitation, lowest first). The mean January high of those 13 cities is -3.5°C; Oulu is 1.9°C cooler than that mean.
From January to February, average highs fall by 0.5°C to -6.0°C, and monthly precipitation falls from 35 mm to 29 mm.
The annual picture
January 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
Oulu climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | -5.5°C-10.2°C | -10.2°C | 35 | 8.8 | 5.15 h |
| February | -6.0°C-10.6°C | -10.6°C | 29 | 8.0 | 8.38 h |
| March | -1.9°C-7.1°C | -7.1°C | 30 | 7.7 | 11.712 h |
| April | 4.0°C-2.6°C | -2.6°C | 30 | 7.4 | 15.215 h |
| May | 10.9°C3.8°C | 3.8°C | 48 | 10.0 | 18.719 h |
| June | 16.0°C9.6°C | 9.6°C | 56 | 10.0 | 21.622 h |
| July | 19.5°C13.4°C | 13.4°C | 78 | 12.1 | 20.220 h |
| August | 17.6°C12.0°C | 12.0°C | 71 | 12.0 | 16.617 h |
| September | 12.2°C7.5°C | 7.5°C | 56 | 10.4 | 13.213 h |
| October | 5.0°C1.5°C | 1.5°C | 50 | 10.3 | 9.810 h |
| November | 0.3°C-3.1°C | -3.1°C | 48 | 10.6 | 6.36 h |
| December | -2.9°C-7.2°C | -7.2°C | 44 | 10.8 | 3.94 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
January in nearby cities
- Luleå in JanuarySweden · 167 kmHigh -4.9°C · Low -9.6°C · 41 mm precipitation
- Kuopio in JanuaryFinland · 259 kmHigh -5.4°C · Low -9.4°C · 40 mm precipitation
- Umeå in JanuarySweden · 282 kmHigh -2.7°C · Low -7.3°C · 49 mm precipitation
- Jyväskylä in JanuaryFinland · 308 kmHigh -4.4°C · Low -8.7°C · 38 mm precipitation
- Joensuu in JanuaryFinland · 341 kmHigh -6.0°C · Low -9.9°C · 41 mm precipitation
- Tampere in JanuaryFinland · 400 kmHigh -3.6°C · Low -7.4°C · 39 mm precipitation
- Pori in JanuaryFinland · 434 kmHigh -1.5°C · Low -5.3°C · 43 mm precipitation
- Lahti in JanuaryFinland · 448 kmHigh -3.6°C · Low -8.0°C · 41 mm precipitation
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 Oulu) is explained once on the Oulu year overview and on the Sources, method and limits page.