Heidenheim an der Brenz weather in August

In August, Heidenheim an der Brenz sees average daytime highs of 23°C and overnight lows near 13°C, with 86 mm of rain across 13.4 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 4th-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 27% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Heidenheim an der Brenz's 1st-clearest and 12th-windiest month. For the whole year in context, see Heidenheim an der Brenz's year-round climate.

Daytime high
23°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
86 mm
13.4 wet days
Daylight
14 h 12 min
5:18 AM – 7:29 PM
Cloud cover
59%
1st clearest
Wind
9 km/h
12th windiest
Solar energy
4.76 kWh/m²
Travel score
6.4
out of 10

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 Heidenheim an der Brenz reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 29°C. Set against its neighbours, August runs on par with July and about 5°C warmer than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62414
72414
82414
92414
102414
112414
122414
132313
142313
152313
162313
172313
182313
192313
202313
212313
222313
232213
242212
252212
262212
272212
282112
292112
302112
312111

How August really feels in Heidenheim an der Brenz

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.

Heidenheim an der Brenz 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 / -3°6511.95.88.50.0
Feb / -2°5210.35.59.80.0
Mar / 6812.63.311.61.5
Apr14° / 5711.1113.43.7
May18° / 9114.40155.1
Jun21° / 12°8914.2015.95.8
Jul23° / 13°9314.3015.56.2
Aug23° / 13°8613.4014.26.4
Sep18° / 6611.2012.45.5
Oct13° / 6711.70.410.53.3
Nov / 6510.82.890.7
Dec / -1°7013.15.98.10.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
35050
45050
54951
64951
74951
84951
95050
105050
115050
125050
135050
144951
155050
165050
175050
184951
194951
204951
214852
224852
234852
244654
254654
264654
274456
284456
294258
304258
314258

Chance of precipitation in August

Any precipitation

Heidenheim an der Brenz gets around 86 mm of rain over 13.4 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 43% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
242
342
443
543
643
743
844
944
1044
1143
1243
1343
1443
1543
1643
1742
1842
1942
2042
2142
2242
2342
2443
2543
2643
2743
2843
2943
3043
3142

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 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1483913
2483913
3483913
4483912
5493912
6493912
7503911
8513910
9513910
1052399
1152399
1253398
1353398
1454397
1554397
1655387
1755387
1855387
1955387
2056377
2156377
2257367
2358357
2458357
2559347
2662326
2763316
2864306
2965296
3067285
3168275

Wind in August

Winds average 9 km/h in August, the calmest month.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 54 min at the start of August to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over August. Sunrise moves from 4:57 AM to 5:40 AM, and sunset from 7:53 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:577:53
214.94:597:52
314.85:007:51
414.85:017:49
514.75:037:47
614.75:047:46
714.65:067:44
814.65:077:43
914.55:087:41
1014.55:107:39
1114.45:117:38
1214.45:137:36
1314.35:147:34
1414.35:157:32
1514.25:177:31
1614.25:187:29
1714.15:207:27
1814.15:217:25
1914.05:237:23
2014.05:247:21
2113.95:257:19
2213.85:277:17
2313.85:287:15
2413.75:307:13
2513.75:317:11
2613.65:337:09
2713.65:347:07
2813.55:367:05
2913.45:377:03
3013.45:387:01
3113.35:406:59

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.76 kWh/m².

For context, solar energy here swings from a low near 0.83 kWh/m² to a high of 5.57 kWh/m² in June across the year — August's 4.76 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.1Bright
65.1Bright
75.1Bright
85.0Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.8Bright
174.7Bright
184.7Bright
194.7Bright
204.6Bright
214.6Bright
224.5Bright
234.5Bright
244.4Bright
254.4Bright
264.3Bright
274.3Bright
284.2Bright
294.2Bright
304.1Bright
314.0Bright
Planning a trip in August

Is August a good time to visit Heidenheim an der Brenz?

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
4.8
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Heidenheim an der Brenz for sightseeing.

What to pack for Heidenheim an der Brenz in August

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

In August, Heidenheim an der Brenz sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Heidenheim an der Brenz in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Heidenheim an der Brenz peaks around July 15 at about 8 (very 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7High
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Heidenheim an der Brenz?

Heidenheim an der Brenz sits at 48.7°N, 10.2°E, 494 m above sea level, in Germany. The nearest listed city is Giengen an der Brenz, 9.0 km away.

Topography around Heidenheim an der Brenz

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Heidenheim an der Brenz.

Within 3 km, the terrain around Heidenheim an der Brenz has only modest variations in elevation — a maximum elevation change of 186 m around an average of 549 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 334 m; within 80 km, large variations in elevation — a maximum elevation change of 712 m.

The land around Heidenheim an der Brenz is covered by trees (61%) and artificial surfaces (24%) within 3 km, trees (51%) and cropland (25%) within 16 km, and trees (39%), cropland (33%) and grassland (20%) within 80 km.

3 km
186 m
16 km
334 m
80 km
712 m
treesgrasslandcroplandartificial surfacesbare terrain
August weather nearby: Giengen an der Brenz 9.0 km · Aalen 18 km · Geislingen an der Steige 25 km · Günzburg 26 km · Dillingen an der Donau 27 km · Schwäbisch Gmünd 29 km · Nördlingen 31 km · Ellwangen 32 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 Heidenheim an der Brenz (48.678°, 10.1516°, elevation 494 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).