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Ustka climate by month
What the weather is like
Ustka has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 21° and nights 15°. January is the coolest month, with highs of 3° and lows of 0°. The difference between the warmest and the coolest month is about 17°.
About 728 mm of precipitation falls in an average year. December is the wettest month (56 mm, 16 wet days) and April the driest (34 mm, 7 wet days). Cloud cover ranges from 33% in May to 58% in December.
The sea reaches about 19° in August. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Warsaw, the capital, Ustka is 3.4° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 21° · August
- Coldest nights
- 0° · January
- Wettest month
- December
- Driest month
- April
- Clearest skies
- May · 33% cloud
- Warmest sea
- 19° · August
- Longest day
- 17 h 14 min
- Shortest day
- 7 h 18 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 3° | 4° | 6° | 10° | 14° | 18° | 21° | 21° | 18° | 13° | 8° | 5° |
| Average low | 0° | 0° | 1° | 4° | 8° | 12° | 15° | 15° | 12° | 8° | 4° | 1° |
| Precipitation | 52 mm | 39 mm | 46 mm | 34 mm | 50 mm | 68 mm | 74 mm | 79 mm | 80 mm | 80 mm | 70 mm | 56 mm |
| Wet days (≥1 mm) | 15.1 | 12 | 10.7 | 7.2 | 8 | 9.6 | 12.6 | 14.3 | 11.9 | 14.3 | 15.2 | 16.2 |
| Cloud cover | 56% | 55% | 46% | 37% | 33% | 34% | 33% | 33% | 38% | 43% | 53% | 58% |
| Sea temperature | 4° | 3° | 3° | 5° | 9° | 14° | 17° | 19° | 16° | 13° | 9° | 6° |
| Daylight | 7h 51 | 9h 44 | 11h 47 | 14h 03 | 16h 03 | 17h 14 | 16h 45 | 14h 58 | 12h 47 | 10h 36 | 8h 30 | 7h 18 |
| Month score | 14 | 19 | 26 | 38 | 57 | 74 | 69 | 66 | 68 | 35 | 15 | 13 |