Saarlouis weather in August

In August, Saarlouis sees average daytime highs of 24°C and overnight lows near 14°C, with 64 mm of rain across 11.1 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 11th-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 26% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 hours at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Saarlouis's 1st-clearest and 12th-windiest month. For the whole year in context, see Saarlouis's year-round climate.

Daytime high
24°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
64 mm
11.1 wet days
Daylight
14 h 12 min
5:30 AM – 7:44 PM
Cloud cover
60%
1st clearest
Wind
10 km/h
12th windiest
Solar energy
4.72 kWh/m²
Travel score
6.7
out of 10
Air quality
Good
PM10 16.9 µg/m³ · 2019

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 Saarlouis reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 30°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)
12515
22515
32515
42515
52515
62515
72515
82515
92515
102415
112415
122414
132414
142414
152414
162414
172414
182414
192414
202414
212314
222314
232314
242313
252313
262313
272213
282213
292213
302213
312212

How August really feels in Saarlouis

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.

Saarlouis weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°8613.23.18.40.0
Feb / 71113.39.80.3
Mar10° / 73121.511.52.2
Apr14° / 5710.80.113.44.1
May18° / 7212.7015.15.5
Jun22° / 12°6511015.96.3
Jul24° / 14°6611.1015.66.7
Aug24° / 14°6411.1014.26.7
Sep19° / 11°689.8012.46.0
Oct14° / 7611.9010.53.8
Nov / 8012.718.91.3
Dec / 107153.380.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
35050
44951
54951
64852
74852
84753
94753
104753
114753
124753
134654
144555
154555
164555
174654
184555
194456
204456
214456
224456
234357
244357
254258
264258
274258
284159
294159
304060
314159

Chance of precipitation in August

Any precipitation

Saarlouis gets around 64 mm of rain over 11.1 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 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
334
434
534
634
735
835
935
1035
1136
1236
1336
1437
1537
1637
1737
1837
1937
2037
2137
2237
2337
2437
2536
2635
2735
2834
2933
3033
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 51% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1453916
2453916
3454015
4454015
5454015
6454014
7464014
8464014
9464014
10474014
11473914
12473913
13483913
14483813
15493813
16493713
17503713
18513613
19513613
20513613
21523513
22533413
23543313
24553312
25563212
26583111
27593011
28612910
2962299
3064288
3164288

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
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 hours 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 102 minutes over August. Sunrise moves from 5:09 AM to 5:53 AM, and sunset from 8:09 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.05:098:09
215.05:108:08
314.95:128:06
414.95:138:05
514.85:158:03
614.85:168:01
714.75:178:00
814.75:197:58
914.65:207:56
1014.65:227:55
1114.55:237:53
1214.45:257:51
1314.45:267:49
1414.35:277:48
1514.35:297:46
1614.25:307:44
1714.25:327:42
1814.15:337:40
1914.15:357:38
2014.05:367:36
2113.95:387:34
2213.95:397:32
2313.85:417:30
2413.85:427:28
2513.75:447:26
2613.65:457:24
2713.65:477:22
2813.55:487:20
2913.55:507:18
3013.45:517:16
3113.35:537:13

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.72 kWh/m².

For context, solar energy here swings from a low near 0.7 kWh/m² to a high of 5.61 kWh/m² in June across the year — August's 4.72 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.2Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.0Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.8Bright
144.8Bright
154.8Bright
164.7Bright
174.7Bright
184.7Bright
194.6Bright
204.6Bright
214.5Bright
224.5Bright
234.4Bright
244.3Bright
254.3Bright
264.2Bright
274.2Bright
284.1Bright
294.1Bright
304.0Bright
314.0Moderate
Planning a trip in August

Is August a good time to visit Saarlouis?

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

6.7
Sightseeing
1st-best month of the year
5.5
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Saarlouis for sightseeing.

What to pack for Saarlouis in August

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

In August, Saarlouis sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Saarlouis 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 Saarlouis peaks around July 16 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 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 16UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Saarlouis 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 Saarlouis is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1515 µg/m³Dec 109 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun14Moderate
Jul12Good
Aug12Good
Sep12Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Saarlouis?

Saarlouis sits at 49.3°N, 6.8°E, 183 m above sea level, in Germany. The nearest listed city is Dillingen, 5.0 km away.

Topography around Saarlouis

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

Within 3 km, the terrain around Saarlouis has only modest variations in elevation — a maximum elevation change of 153 m around an average of 197 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 270 m; within 80 km, large variations in elevation — a maximum elevation change of 724 m.

The land around Saarlouis is covered by trees (42%) and artificial surfaces (31%) within 3 km, trees (54%) within 16 km, and trees (48%), cropland (25%) and grassland (21%) within 80 km.

3 km
153 m
16 km
270 m
80 km
724 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Dillingen 5.0 km · Schwalbach 5.0 km · Wadgassen 6.0 km · Beckingen 10 km · Püttlingen 10 km · Völklingen 10 km · Heusweiler 13 km · Riegelsberg 13 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 Saarlouis (49.3137°, 6.7515°, elevation 183 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).