Koszalin weather in March

In March, Koszalin sees average daytime highs of 6°C and overnight lows near 0°C, with 49 mm of precipitation across 10.3 wet days and about 11.5 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 5°C in the first days to 8°C by the end. The sky is clear or mostly clear about 19% of the time in March, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of March to 12 h 36 min by month's end. Set against the rest of the year, March is Koszalin's 7th-clearest and 6th-windiest month. For the whole year in context, see Koszalin's year-round climate.

Daytime high
9th warmest
Overnight low
4th coldest
Precipitation
49 mm
10.3 wet days
Daylight
11 h 30 min
6:21 AM – 5:49 PM
Cloud cover
69%
7th clearest
Wind
17 km/h
6th windiest
Solar energy
2.65 kWh/m²
Travel score
0.6
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 March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 5°C in the first days to 8°C by the end.

A typical March day in Koszalin reaches about 6°C in the afternoon and slips back to 0°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 1°C and 11°C. Set against its neighbours, March runs about 3°C warmer than February and about 5°C cooler than April.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
14-1
25-1
350
450
550
650
750
850
950
1050
1160
1260
1360
1460
1560
1660
1761
1861
1961
2071
2171
2271
2371
2471
2571
2681
2781
2881
2982
3082
3192

How March really feels in Koszalin

Once humidity and wind are folded in, March averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in March is cold — wind chill drags the overnight "feels like" below the raw low.

Koszalin weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 10th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 15% of March, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
33070
43070
53070
63070
73070
83070
93070
103070
113070
123169
133268
143169
153169
163268
173268
183367
193466
203664
213664
223763
233763
243862
253961
264060
274060
284060
294159
304060
314060

Chance of precipitation in March

Any precipitationSnow

Koszalin gets around 49 mm of rain and snow over 10.3 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 33% and peaks near 35% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13514
23413
33412
43312
53311
63311
73311
83310
93310
10339
11349
12349
13349
14348
15358
16358
17358
18358
19349
20349
21339
22339
23338
24328
25328
26328
27317
28317
29317
30316
31326

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in March

Winds average 17 km/h in March.

Across March, daily wind ranges from about 16 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
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 10 h 24 min at the start of March to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 132 minutes over March. Sunrise moves from 6:58 AM to 5:43 AM, and sunset from 5:19 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.46:585:19
210.46:565:21
310.56:535:23
410.66:515:25
510.66:485:27
610.76:465:29
710.86:445:31
810.96:415:33
910.96:395:35
1011.06:365:37
1111.16:345:39
1211.26:315:41
1311.26:295:43
1411.36:265:45
1511.46:245:47
1611.56:215:49
1711.56:195:51
1811.66:165:53
1911.76:145:55
2011.86:115:57
2111.86:085:58
2211.96:066:00
2312.06:036:02
2412.16:016:04
2512.15:586:06
2612.25:566:08
2712.35:536:10
2812.45:516:12
2912.45:486:14
3012.55:466:16
3112.65:436:18

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 2.65 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 — March's 2.65 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
11.9Dim
22.0Dim
32.0Moderate
42.1Moderate
52.1Moderate
62.1Moderate
72.2Moderate
82.2Moderate
92.3Moderate
102.3Moderate
112.4Moderate
122.4Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.6Moderate
172.7Moderate
182.7Moderate
192.8Moderate
202.8Moderate
212.9Moderate
223.0Moderate
233.0Moderate
243.1Moderate
253.1Moderate
263.2Moderate
273.3Moderate
283.3Moderate
293.4Moderate
303.4Moderate
313.5Moderate
Planning a trip in March

Is March a good time to visit Koszalin?

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

0.6
Sightseeing
9th-best month of the year
0.0
Beach & pool
8th-best month of the year

March is a weaker month for outdoor sightseeing in Koszalin.

What to pack for Koszalin in March

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

In March, Koszalin sees daytime highs around 6°C and nights near 0°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Koszalin in March

The nearest coast averages about 3°C in March — 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 March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 3. 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 March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March 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
March 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).