Altstadt Sud weather in August

In August, Altstadt Sud sees average daytime highs of 23°C and overnight lows near 14°C, with 80 mm of rain across 11.9 wet days and about 14.3 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 19% 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 Altstadt Sud's 1st-clearest and 12th-windiest month. For the whole year in context, see Altstadt Sud's year-round climate.

Daytime high
23°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
80 mm
11.9 wet days
Daylight
14 h 24 min
5:25 AM – 7:47 PM
Cloud cover
64%
1st clearest
Wind
10 km/h
12th windiest
Solar energy
4.41 kWh/m²
Travel score
6.4
out of 10

Altstadt Sud is city quarter of Cologne No. 101.

Density
11,659/km²
people per km²

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 24°C in the first days to 21°C by the end.

A typical August day in Altstadt Sud reaches about 23°C in the afternoon and slips back to 14°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 29°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12415
22415
32415
42415
52415
62415
72415
82415
92415
102415
112415
122415
132415
142315
152314
162314
172314
182314
192314
202314
212314
222314
232214
242214
252214
262213
272213
282213
292113
302113
312113

How August really feels in Altstadt Sud

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.

Altstadt Sud weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9014.82.88.20.1
Feb / 7412.73.49.70.5
Mar10° / 7313.71.311.52.1
Apr14° / 5210.80.213.54.1
May18° / 10°6211.9015.35.5
Jun21° / 12°7012.2016.26.0
Jul23° / 15°8013.2015.86.3
Aug23° / 14°8011.9014.36.4
Sep19° / 11°7111.3012.45.8
Oct14° / 8312.8010.43.8
Nov / 8514.20.78.71.5
Dec / 101163.27.80.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24555
34456
44456
54456
64357
74258
84258
94159
104159
114060
123961
133961
143862
153763
163862
173862
183763
193763
203664
213664
223664
233664
243664
253565
263565
273565
283664
293664
303664
313664

Chance of precipitation in August

Any precipitation

Altstadt Sud gets around 80 mm of rain over 11.9 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 39% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
540
640
740
840
940
1040
1140
1240
1340
1440
1540
1639
1739
1839
1939
2038
2138
2238
2337
2437
2537
2637
2737
2837
2938
3038
3138

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 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13744181
23745181
33745171
43745171
53845171
63844171
73844171
83944171
93944171
103943171
114043171
124042181
134141181
144140181
154239181
164338191
174337191
184436191
194536191
204635181
214834181
224933171
235032171
245231161
255430151
265629141
275828131
285828131
296027121
306226111
316326101

Wind in August

Winds average 10 km/h in August, the calmest month.

Across August, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:02 AM to 5:49 AM, and sunset from 8:14 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.25:028:14
215.15:048:12
315.15:058:11
415.05:078:09
515.05:088:07
614.95:108:06
714.95:118:04
814.85:138:02
914.85:158:00
1014.75:167:59
1114.75:187:57
1214.65:197:55
1314.55:217:53
1414.55:227:51
1514.45:247:49
1614.45:257:47
1714.35:277:45
1814.25:297:43
1914.25:307:41
2014.15:327:39
2114.15:337:37
2214.05:357:35
2313.95:377:33
2413.95:387:30
2513.85:407:28
2613.75:417:26
2713.75:437:24
2813.65:457:22
2913.65:467:19
3013.55:487:17
3113.45:497:15

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.41 kWh/m².

For context, solar energy here swings from a low near 0.61 kWh/m² to a high of 5.27 kWh/m² in June across the year — August's 4.41 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
34.9Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.6Bright
124.6Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.0Bright
254.0Moderate
263.9Moderate
273.9Moderate
283.8Moderate
293.8Moderate
303.7Moderate
313.7Moderate
Planning a trip in August

Is August a good time to visit Altstadt Sud?

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

6.4
Sightseeing
1st-best month of the year
5.0
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Altstadt Sud for sightseeing.

What to pack for Altstadt Sud in August

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

In August, Altstadt Sud sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes and rain gear. About 12 days see rain.

light clothesrain gear

UV index in Altstadt Sud 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 Altstadt Sud peaks around July 13 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Altstadt Sud 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 Altstadt Sud is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1415 µg/m³Dec 109 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun14Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Altstadt Sud?

Altstadt Sud sits at 50.9°N, 7.0°E, 52 m above sea level, in Germany. The nearest listed city is Altstadt Nord, 1.0 km away.

Topography around Altstadt Sud

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

Within 3 km, the terrain around Altstadt Sud has only modest variations in elevation — a maximum elevation change of 52 m around an average of 52 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 202 m; within 80 km, large variations in elevation — a maximum elevation change of 1,018 m.

The land around Altstadt Sud is covered by artificial surfaces (60%) and trees (29%) within 3 km, trees (43%) and artificial surfaces (25%) within 16 km, and trees (49%) and cropland (20%) within 80 km.

3 km
52 m
16 km
202 m
80 km
1,018 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Altstadt Nord 1.0 km · Cologne 1.0 km · Deutz 1.0 km · Neustadt/Süd 1.0 km · Neustadt/Nord 2.0 km · Humboldtkolonie 2.0 km · Neuehrenfeld 3.0 km · Kalk 3.0 km

Germany travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 80% of US
price level, 2025
GDP per capita
$60,496
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.9
per 100k, 2023
Road deaths
3.8
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 615
Religion
none 44%Roman Catholic 25%Protestant 23%other 5%

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 Altstadt Sud (50.9333°, 6.9595°, elevation 52 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).