Koszalin weather in October

In October, Koszalin sees average daytime highs of 12°C and overnight lows near 7°C, with 66 mm of precipitation across 12.5 wet days and about 10.2 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 10°C by the end. The sky is clear or mostly clear about 16% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of October to 9 h 12 min by month's end. Set against the rest of the year, October is Koszalin's 8th-clearest and 5th-windiest month. For the whole year in context, see Koszalin's year-round climate.

Daytime high
12°
6th warmest
Overnight low
7th coldest
Precipitation
66 mm
12.5 wet days
Daylight
10 h 12 min
6:34 AM – 4:47 PM
Cloud cover
70%
8th clearest
Wind
17 km/h
5th windiest
Solar energy
1.64 kWh/m²
Travel score
3.1
out of 10

Koszalin is city with powiat rights of Poland.

Air quality
Moderate
PM2.5 13.7 µg/m³ · 2019
Density
1,023/km²
people per km²
Founded
1266

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 15°C in the first days to 10°C by the end.

A typical October day in Koszalin reaches about 12°C in the afternoon and slips back to 7°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 17°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1159
2159
3159
4158
5148
6148
7148
8148
9148
10138
11137
12137
13137
14137
15127
16127
17127
18127
19126
20126
21116
22116
23116
24116
25116
26116
27106
28105
29105
30105
31105

How October really feels in Koszalin

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Koszalin weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°5411.74.57.70.0
Feb / -1°4410.24.59.30.0
Mar / 4910.3311.50.6
Apr11° / 3890.513.73.0
May16° / 5610.80.115.75.0
Jun19° / 12°7112016.85.8
Jul21° / 14°9013.3016.46.1
Aug22° / 14°7813.4014.66.1
Sep18° / 11°6812.2012.55.2
Oct12° / 6612.50.110.23.1
Nov / 5311.81.38.20.8
Dec / 5812.447.20.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23367
33367
43367
53367
63367
73367
83367
93367
103466
113466
123367
133367
143367
153268
163268
173169
183169
192971
202971
212971
222872
232872
242773
252773
262674
272575
282575
292575
302575
312476

Chance of precipitation in October

Any precipitation

Koszalin gets around 66 mm of rain and snow over 12.5 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 42% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
239
340
440
541
641
742
842
942
1041
1141
1241
1341
1441
1540
1640
1740
1840
1940
2039
2139
2239
2339
2439
2539
2640
2740
2840
2941
3041
3141

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1928
2928
3928
4937
5937
6937
7946
8946
9955
10955
11964
12964
13964
14973
15973
16982
17982
18982
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in October

Winds average 17 km/h in October.

Across October, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 18 min at the start of October to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 126 minutes over October. Sunrise moves from 6:05 AM to 7:04 AM, and sunset from 5:24 PM to 4:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:055:24
211.26:075:21
311.26:095:19
411.16:115:16
511.06:135:13
610.96:155:11
710.96:165:08
810.86:185:06
910.76:205:04
1010.66:225:01
1110.66:244:59
1210.56:264:56
1310.46:284:54
1410.46:304:51
1510.36:324:49
1610.26:344:47
1710.16:364:44
1810.16:384:42
1910.06:404:40
209.96:424:37
219.96:444:35
229.86:464:33
239.76:484:31
249.66:504:28
259.66:524:26
269.56:544:24
279.46:564:22
289.46:584:20
299.37:004:18
309.27:024:16
319.27:044:14

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.64 kWh/m².

For context, solar energy here swings from a low near 0.44 kWh/m² to a high of 5.76 kWh/m² in June across the year — October's 1.64 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.2Moderate
32.2Moderate
42.1Moderate
52.1Moderate
62.0Moderate
72.0Dim
81.9Dim
91.9Dim
101.9Dim
111.8Dim
121.8Dim
131.8Dim
141.7Dim
151.7Dim
161.6Dim
171.6Dim
181.6Dim
191.5Dim
201.5Dim
211.5Dim
221.4Dim
231.4Dim
241.3Dim
251.3Dim
261.3Dim
271.2Dim
281.2Dim
291.2Dim
301.1Dim
311.1Dim
Planning a trip in October

Is October a good time to visit Koszalin?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.1
Sightseeing
6th-best month of the year
0.0
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Koszalin.

What to pack for Koszalin in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Koszalin sees daytime highs around 12°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Koszalin in October

The nearest coast averages about 13°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 km away) is warmest in August at about 19°C and coldest in February near 3°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr5Bracing
May9Bracing
Jun14Bracing
Jul17Cool
Aug19Cool
Sep16Cool
Oct13Bracing
Nov9Bracing
Dec6Bracing

UV index in Koszalin in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Koszalin peaks around June 17 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 17UV 6Dec 20UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul5High
Aug5High
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Koszalin in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Koszalin is worst in April — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 8 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Koszalin's WHO annual average of 13.7 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1318 µg/m³Dec 149 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar17Moderate
Apr18Moderate
May16Moderate
Jun16Moderate
Jul16Moderate
Aug15Moderate
Sep14Moderate
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Koszalin?

Koszalin sits at 54.2°N, 16.2°E, 30 m above sea level, in Poland. The nearest listed city is Białogard, 24 km away.

KołobrzegŚwidwinUstkaSłupskSzczecinekGryficeBytów

Topography around Koszalin

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Koszalin.

Within 3 km, the terrain around Koszalin has only modest variations in elevation — a maximum elevation change of 106 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 153 m; within 80 km, significant variations in elevation — a maximum elevation change of 264 m.

The land around Koszalin is covered by artificial surfaces (38%) and trees (35%) within 3 km, trees (38%), cropland (23%) and grassland (20%) within 16 km, and trees (38%), water (27%) and cropland (22%) within 80 km.

3 km
106 m
16 km
153 m
80 km
264 m
treesgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Białogard 24 km · Kołobrzeg 38 km · Świdwin 53 km · Ustka 62 km · Słupsk 63 km · Szczecinek 64 km · Gryfice 71 km · Bytów 86 km

Poland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 52% of US
price level, 2025
GDP per capita
$28,420
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
9.4
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 600
Religion
Roman Catholic 71%refused to answer 21%no religion 7%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Koszalin (54.1944°, 16.1722°, elevation 30 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).