Olsztyn Climate by Month
Olsztyn, Warmia-Masuria, Poland
Warm summers and freezing winters, with rain spread through the year.
Olsztyn has warm summers and freezing winters, with rain spread through the year. July is the warmest month, with highs around 76°F (25°C); January is the coolest at 32°F (0°C), and nights dip to 23°F (-5°C). About 24 in (601 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 76°F(25°C)
- Average high, July
- Coldest nights
- 23°F(-5°C)
- Average low, January
- Rain per year
- 24 in(601 mm)
- No clear rainy season
- Humidity
- 78%
- Sunniest: June
Best and worst months in Olsztyn
Best for weatherThe most comfortable weather comes from June to August, with highs around 75°F (24°C) and about 2.8 in (71 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 32°F (0°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in August.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Olsztyn weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 32°F(0°C) | 23°F(-5°C) | 1.5 in(39 mm) | 98% | 0.6 |
| FebFebruary | 35°F(2°C) | 24°F(-4°C) | 1.1 in(29 mm) | 90% | 1.2 |
| MarMarch | 44°F(7°C) | 30°F(-1°C) | 1.5 in(38 mm) | 81% | 2.6 |
| AprApril | 58°F(15°C) | 38°F(4°C) | 1.2 in(31 mm) | 61% | 4.1 |
| MayMay | 67°F(20°C) | 46°F(8°C) | 2.0 in(52 mm) | 64% | 5.3 |
| JunJuneBest | 73°F(23°C) | 52°F(11°C) | 2.8 in(71 mm) | 68% | 6.0 |
| JulJulyBest | 76°F(25°C) | 57°F(14°C) | 3.0 in(77 mm) | 67% | 5.6 |
| AugAugustBest | 76°F(24°C) | 55°F(13°C) | 2.6 in(66 mm) | 70% | 4.6 |
| SepSeptember | 65°F(19°C) | 48°F(9°C) | 2.2 in(56 mm) | 77% | 3.1 |
| OctOctober | 54°F(12°C) | 41°F(5°C) | 2.1 in(53 mm) | 81% | 1.7 |
| NovNovember | 42°F(6°C) | 34°F(1°C) | 1.7 in(44 mm) | 90% | 0.7 |
| DecDecember | 34°F(1°C) | 27°F(-3°C) | 1.8 in(45 mm) | 87% | 0.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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