Jelenia Góra weather in September

In September, Jelenia Góra sees average daytime highs of 17°C and overnight lows near 9°C, with 74 mm of rain across 11.3 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 15°C by the end. The sky is clear or mostly clear about 24% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Jelenia Góra's 4th-clearest and 8th-windiest month. For the whole year in context, see Jelenia Góra's year-round climate.

Daytime high
17°
4th warmest
Overnight low
9th coldest
Rainfall
74 mm
11.3 wet days
Daylight
12 h 24 min
5:40 AM – 6:03 PM
Cloud cover
62%
4th clearest
Wind
11 km/h
8th windiest
Solar energy
3.08 kWh/m²
Travel score
5.2
out of 10

Jelenia Góra is city with powiat rights of Poland.

Air quality
Elevated
PM2.5 20.1 µg/m³ · 2019
Density
708/km²
people per km²
Founded
~950 CE

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 19°C in the first days to 15°C by the end.

A typical September day in Jelenia Góra reaches about 17°C in the afternoon and slips back to 9°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 23°C. Set against its neighbours, September runs about 5°C cooler than August and about 5°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11911
21911
31910
41910
51910
61910
71810
81810
91810
10189
11189
12189
13189
14179
15179
16179
17178
18178
19178
20168
21168
22168
23168
24167
25167
26167
27157
28157
29157
30157

How September really feels in Jelenia Góra

Once humidity and wind are folded in, September 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

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

Jelenia Góra weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°6213.18.48.20.0
Feb / -4°5011.67.99.70.0
Mar / -1°6413.56.411.50.6
Apr12° / 5110.61.913.53.2
May17° / 8513.70.115.34.9
Jun20° / 11°9513.8016.25.6
Jul22° / 13°12014.5015.86.0
Aug22° / 12°9312014.36.4
Sep17° / 7411.3012.45.2
Oct12° / 5911.10.510.43.0
Nov / 5411.13.78.70.6
Dec / -3°5612.27.37.80.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24258
34159
44159
54258
64258
74258
84258
94258
104258
114258
124258
134258
144159
154159
164258
174258
184159
194060
204060
214060
223961
233961
243961
253961
263862
273862
283862
293862
303862

Chance of precipitation in September

Any precipitation

Jelenia Góra gets around 74 mm of rain over 11.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
241
341
441
541
641
741
840
940
1039
1139
1238
1337
1437
1536
1636
1735
1835
1935
2035
2135
2235
2335
2435
2535
2635
2736
2836
2937
3037

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
172235
274224
375214
477203
578193
679183
780182
881172
982162
1083161
1184151
1284151
1385141
1486131
1587121
1687121
1789110
1890100
199190
209280
219370
229370
239460
249460
259550
269550
279640
289640
299730
309730

Wind in September

Winds average 11 km/h in September.

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

051015151015202530
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
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 114 minutes over September. Sunrise moves from 5:16 AM to 6:03 AM, and sunset from 6:38 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:166:38
213.35:186:35
313.25:196:33
413.25:216:31
513.15:226:28
613.05:246:26
713.05:266:24
812.95:276:22
912.85:296:19
1012.85:306:17
1112.75:326:15
1212.65:346:12
1312.65:356:10
1412.55:376:08
1512.45:386:05
1612.45:406:03
1712.35:426:00
1812.25:435:58
1912.25:455:56
2012.15:465:53
2112.05:485:51
2212.05:505:49
2311.95:515:46
2411.95:535:44
2511.85:555:42
2611.75:565:39
2711.75:585:37
2811.65:595:35
2911.56:015:32
3011.56:035:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.08 kWh/m².

For context, solar energy here swings from a low near 0.7 kWh/m² to a high of 5.29 kWh/m² in June across the year — September's 3.08 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.5Moderate
63.5Moderate
73.4Moderate
83.4Moderate
93.4Moderate
103.3Moderate
113.3Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
193.0Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.5Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Jelenia Góra?

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

5.2
Sightseeing
4th-best month of the year
1.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Jelenia Góra for sightseeing.

What to pack for Jelenia Góra in September

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

In September, Jelenia Góra sees daytime highs around 17°C and nights near 9°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Jelenia Góra in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Jelenia Góra peaks around June 20 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 20UV 7Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7Very high
Jul7High
Aug6High
Sep5Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Jelenia Góra in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Jelenia Góra is worst in June — around 24 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Jelenia Góra's WHO annual average of 20.1 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1724 µg/m³Dec 1215 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb19Moderate
Mar23Moderate
Apr23Moderate
May22Moderate
Jun24Moderate
Jul22Moderate
Aug23Moderate
Sep19Moderate
Oct17Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Jelenia Góra?

Jelenia Góra sits at 50.9°N, 15.7°E, 331 m above sea level, in Poland. The nearest listed city is Kamienna Góra, 25 km away.

LubańTrutnovWałbrzychŚwiebodzice

Topography around Jelenia Góra

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

Within 3 km, the terrain around Jelenia Góra has only modest variations in elevation — a maximum elevation change of 205 m around an average of 368 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,238 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,572 m.

The land around Jelenia Góra is covered by trees (51%), grassland (23%) and artificial surfaces (21%) within 3 km, trees (57%) and grassland (25%) within 16 km, and trees (45%) and cropland (35%) within 80 km.

3 km
205 m
16 km
1,238 m
80 km
1,572 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Kamienna Góra 25 km · Złotoryja 29 km · Jawor 37 km · Boguszów-Gorce 37 km · Lubań 39 km · Trutnov 40 km · Wałbrzych 42 km · Świebodzice 42 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 Jelenia Góra (50.8997°, 15.729°, elevation 331 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).