Wejherowo weather in August

In August, Wejherowo sees average daytime highs of 21°C and overnight lows near 13°C, with 83 mm of rain across 13 wet days and about 14.7 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 20°C by the end. The sky is clear or mostly clear about 25% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 42 min at the start of August to 13 h 36 min by month's end. Set against the rest of the year, August is Wejherowo's 3rd-clearest and 12th-windiest month. For the whole year in context, see Wejherowo's year-round climate.

Daytime high
21°
1st warmest
Overnight low
13°
11th coldest
Rainfall
83 mm
13 wet days
Daylight
14 h 42 min
4:30 AM – 7:12 PM
Cloud cover
60%
3rd clearest
Wind
14 km/h
12th windiest
Solar energy
4.46 kWh/m²
Travel score
6.1
out of 10

Wejherowo is city and urban gmina of Poland.

Air quality
Good
PM10 29.1 µg/m³ · 2018
Density
1,825/km²
people per km²
Founded
1643

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 20°C by the end.

A typical August day in Wejherowo reaches about 21°C in the afternoon and slips back to 13°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 26°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12214
22214
32214
42214
52214
62214
72214
82214
92213
102213
112213
122213
132213
142213
152213
162113
172113
182113
192113
202113
212113
222112
232112
242112
252012
262012
272012
282012
292012
302012
311912

How August really feels in Wejherowo

Once humidity and wind are folded in, August 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

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

Wejherowo weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°4310.967.60.0
Feb / -3°369.65.99.30.0
Mar / -1°4410.94.611.50.4
Apr11° / 439.81.313.72.8
May16° / 6511.5015.84.9
Jun19° / 11°7713016.95.6
Jul21° / 13°9713.9016.46.0
Aug21° / 13°8313014.76.1
Sep17° / 10°5911012.55.2
Oct12° / 5311.20.310.22.9
Nov / 419.92.18.20.5
Dec / -1°4510.74.77.10.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34753
44753
54753
64753
74753
84654
94654
104753
114753
124654
134654
144654
154753
164654
174654
184654
194654
204654
214753
224753
234654
244654
254654
264654
274654
284555
294555
304456
314357

Chance of precipitation in August

Any precipitation

Wejherowo gets around 83 mm of rain over 13 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
139
239
339
439
540
640
740
840
941
1041
1141
1241
1341
1442
1542
1642
1743
1843
1943
2043
2143
2243
2344
2444
2544
2645
2745
2845
2946
3046
3146

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 43% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12646235
22745235
32745235
42745234
52845234
62944234
73044224
83144223
93344213
103443203
113543193
123643192
133842182
143942172
154141162
164241152
174441142
184540132
194640122
204839121
214939111
225039101
235138101
24533791
25533791
26553681
27573580
28593470
29613360
30623260
31643150

Wind in August

Winds average 14 km/h in August, the calmest month.

Across August, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 42 min at the start of August to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 126 minutes over August. Sunrise moves from 4:03 AM to 4:58 AM, and sunset from 7:44 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.74:037:44
215.64:047:42
315.64:067:40
415.54:087:38
515.44:107:36
615.44:127:34
715.34:137:32
815.24:157:30
915.24:177:28
1015.14:197:26
1115.04:217:24
1215.04:227:21
1314.94:247:19
1414.84:267:17
1514.84:287:15
1614.74:307:12
1714.64:327:10
1814.64:347:08
1914.54:357:05
2014.44:377:03
2114.44:397:01
2214.34:416:58
2314.24:436:56
2414.14:456:54
2514.14:476:51
2614.04:496:49
2713.94:516:46
2813.94:526:44
2913.84:546:41
3013.74:566:39
3113.64:586:36

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.46 kWh/m².

For context, solar energy here swings from a low near 0.43 kWh/m² to a high of 5.71 kWh/m² in June across the year — August's 4.46 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.5Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.0Bright
273.9Moderate
283.9Moderate
293.8Moderate
303.8Moderate
313.7Moderate
Planning a trip in August

Is August a good time to visit Wejherowo?

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

6.1
Sightseeing
1st-best month of the year
3.8
Beach & pool
1st-best month of the year

August is a reasonable time to visit Wejherowo for sightseeing.

What to pack for Wejherowo in August

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

In August, Wejherowo sees daytime highs around 21°C and nights near 13°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Wejherowo in August

The nearest coast averages about 19°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 25 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 Wejherowo in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Wejherowo peaks around June 20 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 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 20UV 6Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5Moderate
Jun6High
Jul5High
Aug5Moderate
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Wejherowo?

Wejherowo sits at 54.6°N, 18.2°E, 27 m above sea level, in Poland. The nearest listed city is Reda, 7.0 km away.

Topography around Wejherowo

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

Within 3 km, the terrain around Wejherowo has only modest variations in elevation — a maximum elevation change of 129 m around an average of 66 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 242 m; within 80 km, significant variations in elevation — a maximum elevation change of 339 m.

The land around Wejherowo is covered by trees (67%) within 3 km, trees (57%) and grassland (21%) within 16 km, and water (41%), trees (27%) and cropland (20%) within 80 km.

3 km
129 m
16 km
242 m
80 km
339 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Reda 7.0 km · Rumia 11 km · Gdynia 21 km · Osowa 25 km · Sopot 28 km · Kartuzy 30 km · Przymorze Wielkie 32 km · Lębork 32 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 Wejherowo (54.6057°, 18.2356°, elevation 27 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).