Chełm weather in August

In August, Chełm sees average daytime highs of 24°C and overnight lows near 13°C, with 66 mm of rain across 9.9 wet days and about 14.4 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 22°C by the end. The sky is clear or mostly clear about 30% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 12 min at the start of August to 13 h 24 min by month's end. Set against the rest of the year, August is Chełm's 1st-clearest and 12th-windiest month. For the whole year in context, see Chełm's year-round climate.

Daytime high
24°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
66 mm
9.9 wet days
Daylight
14 h 24 min
4:19 AM – 6:42 PM
Cloud cover
56%
1st clearest
Wind
11 km/h
12th windiest
Solar energy
4.62 kWh/m²
Travel score
6.9
out of 10

Chełm is city with powiat rights in the Lublin Voivodeship in south-eastern Poland.

Air quality
Elevated
PM2.5 18.2 µg/m³ · 2019
Density
1,707/km²
people per km²
Founded
1237

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 25°C in the first days to 22°C by the end.

A typical August day in Chełm reaches about 24°C in the afternoon and slips back to 13°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 30°C. Set against its neighbours, August runs on par with July and about 6°C warmer than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12515
22515
32515
42514
52514
62514
72514
82514
92514
102514
112514
122514
132514
142513
152413
162413
172413
182413
192413
202413
212413
222413
232312
242312
252312
262312
272312
282212
292212
302211
312211

How August really feels in Chełm

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.

Chełm weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°369.66.38.20.0
Feb / -4°359.66.69.60.0
Mar / -1°4310.73.911.50.7
Apr14° / 479.71.113.53.9
May19° / 7212.7015.35.7
Jun22° / 12°7812.3016.26.2
Jul24° / 14°8613.1015.96.4
Aug24° / 13°669.9014.46.9
Sep19° / 639.5012.45.9
Oct13° / 479.50.410.43.4
Nov / 389.32.78.70.6
Dec / -3°389.45.87.80.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25545
35545
45545
55545
65545
75545
85644
95644
105644
115644
125743
135644
145743
155743
165644
175545
185644
195545
205446
215347
225347
235248
245149
255050
264852
274852
284555
294555
304555
314357

Chance of precipitation in August

Any precipitation

Chełm gets around 66 mm of rain over 9.9 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 32% and peaks near 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
537
637
736
836
936
1035
1135
1234
1333
1433
1532
1631
1731
1830
1930
2029
2129
2228
2328
2428
2529
2629
2729
2830
2931
3031
3132

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 49% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13134295
23234295
33334285
43334285
53434274
63534264
73634264
83735253
93835243
104034233
114134223
124234212
134334212
144534202
154633192
164833181
174932171
185132161
195231161
205331151
215530141
225630131
235829130
246028120
256128110
266327100
276426100
28662590
29672580
30692470
31702370

Wind in August

Winds average 11 km/h in August, the calmest month.

Across August, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 12 min at the start of August to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over August. Sunrise moves from 3:56 AM to 4:43 AM, and sunset from 7:09 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.23:567:09
215.23:577:07
315.13:597:05
415.14:007:04
515.04:027:02
615.04:037:00
714.94:056:59
814.84:066:57
914.84:086:55
1014.74:096:53
1114.74:116:51
1214.64:136:49
1314.64:146:47
1414.54:166:46
1514.44:176:44
1614.44:196:42
1714.34:206:40
1814.34:226:37
1914.24:246:35
2014.14:256:33
2114.14:276:31
2214.04:286:29
2313.94:306:27
2413.94:326:25
2513.84:336:23
2613.84:356:20
2713.74:376:18
2813.64:386:16
2913.64:406:14
3013.54:416:12
3113.44:436:09

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.62 kWh/m².

For context, solar energy here swings from a low near 0.6 kWh/m² to a high of 5.58 kWh/m² in June across the year — August's 4.62 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.7Bright
174.6Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.3Bright
254.2Bright
264.2Bright
274.1Bright
284.0Bright
294.0Moderate
303.9Moderate
313.9Moderate
Planning a trip in August

Is August a good time to visit Chełm?

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

6.9
Sightseeing
1st-best month of the year
5.7
Beach & pool
1st-best month of the year

August is a reasonable time to visit Chełm for sightseeing.

What to pack for Chełm in August

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

In August, Chełm sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Chełm in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chełm peaks around July 18 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 18UV 6Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Chełm in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Chełm is worst in July — around 24 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 11 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Chełm's WHO annual average of 18.2 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1224 µg/m³Dec 1711 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar22Moderate
Apr21Moderate
May21Moderate
Jun23Moderate
Jul24Moderate
Aug21Moderate
Sep18Moderate
Oct14Moderate
Nov13Moderate
Dec11Good
Location & terrain

Where is Chełm?

Chełm sits at 51.1°N, 23.5°E, 177 m above sea level, in Poland. The nearest listed city is Krasnystaw, 27 km away.

ŁęcznaHrubieszówZamośćŚwidnikLublinNovovolynskVolodymyr-Volynskyi

Topography around Chełm

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

Within 3 km, the terrain around Chełm has only modest variations in elevation — a maximum elevation change of 66 m around an average of 192 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 126 m; within 80 km, significant variations in elevation — a maximum elevation change of 254 m.

The land around Chełm is covered by artificial surfaces (30%), trees (28%) and grassland (27%) within 3 km, cropland (49%) and trees (28%) within 16 km, and cropland (47%) and trees (35%) within 80 km.

3 km
66 m
16 km
126 m
80 km
254 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Krasnystaw 27 km · Łęczna 45 km · Hrubieszów 48 km · Zamość 49 km · Świdnik 55 km · Lublin 64 km · Novovolynsk 67 km · Volodymyr-Volynskyi 68 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 Chełm (51.1431°, 23.4716°, elevation 177 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. 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).