Climate averages 1991–2020
Olsztyn weather
in January.
A freezing month with moderate precipitation: the coolest and the joint 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a freezing month in Olsztyn: daytime highs average -0.4°C and nights cool to about -4.6°C. By daytime temperature it is the coolest month of the year.
Expect about 43 mm of precipitation on roughly 11 days, which makes January a month with moderate precipitation (the joint 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 03 min on an average January day.
The nearest other city in this atlas is Elbląg (82 km away). In January its highs average 1.2°C, 1.6°C warmer than Olsztyn, with 47 mm of precipitation.
Among the 60 cities listed in Poland, Olsztyn ranks 59th of 60 for the warmest January highs and joint 30th of 60 for the driest January (precipitation, lowest first). The mean January high of those 60 cities is 1.1°C; Olsztyn is 1.5°C cooler than that mean.
From January to February, average highs rise by 1.4°C to 1.0°C, and monthly precipitation falls from 43 mm to 37 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
Olsztyn climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | -0.4°C-4.6°C | -4.6°C | 43 | 10.8 | 8.18 h |
| February | 1.0°C-4.3°C | -4.3°C | 37 | 8.9 | 9.710 h |
| March | 5.4°C-1.8°C | -1.8°C | 43 | 10.3 | 11.812 h |
| April | 12.1°C2.7°C | 2.7°C | 41 | 9.7 | 14.014 h |
| May | 17.2°C7.8°C | 7.8°C | 64 | 12.2 | 15.916 h |
| June | 20.3°C11.6°C | 11.6°C | 70 | 12.3 | 17.017 h |
| July | 22.3°C14.0°C | 14.0°C | 86 | 13.2 | 16.517 h |
| August | 22.0°C13.9°C | 13.9°C | 66 | 11.4 | 14.815 h |
| September | 17.1°C10.1°C | 10.1°C | 59 | 9.8 | 12.813 h |
| October | 11.1°C5.5°C | 5.5°C | 50 | 10.1 | 10.611 h |
| November | 5.3°C1.4°C | 1.4°C | 42 | 9.9 | 8.69 h |
| December | 1.2°C-2.5°C | -2.5°C | 45 | 10.4 | 7.58 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
- Elbląg in JanuaryPoland · 82 kmHigh 1.2°C · Low -2.6°C · 47 mm precipitation
- Kaliningrad in JanuaryRussia · 103 kmHigh 0.8°C · Low -3.5°C · 47 mm precipitation
- Grudziądz in JanuaryPoland · 119 kmHigh 1.0°C · Low -3.3°C · 38 mm precipitation
- Gdańsk in JanuaryPoland · 136 kmHigh 1.6°C · Low -2.2°C · 35 mm precipitation
- Płock in JanuaryPoland · 147 kmHigh 0.7°C · Low -3.8°C · 39 mm precipitation
- Gdynia in JanuaryPoland · 152 kmHigh 1.8°C · Low -2.0°C · 47 mm precipitation
- Toruń in JanuaryPoland · 152 kmHigh 1.2°C · Low -3.2°C · 38 mm precipitation
- Włocławek in JanuaryPoland · 158 kmHigh 1.1°C · Low -3.3°C · 39 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 Olsztyn) is explained once on the Olsztyn year overview and on the Sources, method and limits page.