Photo: English: photos should be signed: "source: www.slupczewski.pl, Michał Słupczewsk · Attribution · Wikimedia Commons
SłupskReport this photo · linked, not stored
SłupskReport this photo · linked, not stored
Climate guideThirty-year normals for Słupsk
Słupsk climate by month
Oceanic · CfbBest Jun–Jul · Sep
Annual mean9°day and night
Seasonal swing17°warmest vs coolest
Precipitation747 mm146 wet days a year
54.46° N, 17.03° EElevation 18 mUTC+2 · Central European Summer Time
When to goSłupsk · weather score
Best timeJun–Jul · Sep
October: high / low13° / 7°
iSummary
What the weather is like
Słupsk has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 22° and nights 14°. January is the coolest month, with highs of 3° and lows of -1°. The difference between the warmest and the coolest month is about 17°.
About 747 mm of precipitation falls in an average year. December is the wettest month (57 mm, 15 wet days) and April the driest (36 mm, 9 wet days). Cloud cover ranges from 34% in May to 58% in December.
Compared with Warsaw, the capital, Słupsk is 2.8° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 22° · August
- Coldest nights
- -1° · January
- Wettest month
- December
- Driest month
- April
- Clearest skies
- May · 34% cloud
- Longest day
- 17 h 13 min
- Shortest day
- 7 h 20 min
iiCharts
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columnsTemperature curve
Average high, lowDaylight
Hours between sunrise and sunset on the 15th of each monthiiiData table
Climate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 3° | 4° | 6° | 11° | 15° | 19° | 22° | 22° | 18° | 13° | 8° | 4° |
| Average low | -1° | -1° | 1° | 4° | 8° | 12° | 14° | 14° | 11° | 7° | 4° | 0° |
| Precipitation | 55 mm | 40 mm | 50 mm | 36 mm | 55 mm | 74 mm | 80 mm | 79 mm | 78 mm | 74 mm | 69 mm | 57 mm |
| Wet days (≥1 mm) | 13.9 | 10.7 | 10.3 | 8.5 | 10.4 | 12.2 | 14.2 | 14.2 | 11.3 | 12.6 | 13.3 | 14.6 |
| Cloud cover | 57% | 56% | 47% | 38% | 34% | 36% | 34% | 34% | 39% | 44% | 54% | 58% |
| Daylight | 7h 52 | 9h 45 | 11h 47 | 14h 03 | 16h 02 | 17h 13 | 16h 44 | 14h 58 | 12h 46 | 10h 36 | 8h 31 | 7h 20 |
| Month score | 14 | 22 | 27 | 41 | 60 | 69 | 65 | 65 | 70 | 38 | 17 | 13 |
ivMonth by month
Słupsk in every month
January14
3° / -1°
55 mm · 13.9 wet days
February22
4° / -1°
40 mm · 10.7 wet days
March27
6° / 1°
50 mm · 10.3 wet days
April41
11° / 4°
36 mm · 8.5 wet days
May60
15° / 8°
55 mm · 10.4 wet days
June69
19° / 12°
74 mm · 12.2 wet days
July65
22° / 14°
80 mm · 14.2 wet days
August65
22° / 14°
79 mm · 14.2 wet days
September70
18° / 11°
78 mm · 11.3 wet days
October38
13° / 7°
74 mm · 12.6 wet days
November17
8° / 4°
69 mm · 13.3 wet days
December13
4° / 0°
57 mm · 14.6 wet days