Grivegnée weather in August

In August, Grivegnée sees average daytime highs of 22°C and overnight lows near 13°C, with 81 mm of rain across 12.7 wet days and about 14.3 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°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 Grivegnée's 1st-clearest and 12th-windiest month. For the whole year in context, see Grivegnée's year-round climate.

Daytime high
22°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
81 mm
12.7 wet days
Daylight
14 h 18 min
5:32 AM – 7:52 PM
Cloud cover
65%
1st clearest
Wind
12 km/h
12th windiest
Solar energy
4.44 kWh/m²
Travel score
6.2
out of 10

Grivegnée is section of Liège, Belgium.

Density
4,433/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 23°C in the first days to 20°C by the end.

A typical August day in Grivegnée reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 28°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12314
22314
32314
42314
52314
62314
72314
82314
92314
102314
112214
122214
132214
142213
152213
162213
172213
182213
192213
202213
212113
222113
232113
242113
252112
262112
272112
282012
292012
302012
312012

How August really feels in Grivegnée

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.

Grivegnée weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8113.92.88.30.0
Feb / 7212.33.89.70.3
Mar10° / 7314.12.111.51.9
Apr13° / 5812.10.313.53.6
May17° / 6713015.25.0
Jun20° / 11°7512.8016.25.7
Jul22° / 13°7913.1015.86.2
Aug22° / 13°8112.7014.36.2
Sep18° / 10°6711.6012.45.5
Oct14° / 6712.4010.43.6
Nov / 7413.71.28.71.4
Dec / 9315.23.47.80.2

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 18% of August, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34060
44060
54060
63961
73961
83862
93862
103763
113763
123664
133664
143664
153664
163565
173565
183466
193466
203466
213466
223466
233466
243466
253466
263565
273565
283466
293466
303466
313466

Chance of precipitation in August

Any precipitation

Grivegnée gets around 81 mm of rain over 12.7 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 41% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
540
640
740
841
941
1041
1142
1242
1342
1442
1542
1642
1742
1842
1942
2041
2141
2241
2341
2441
2541
2641
2740
2840
2940
3040
3139

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 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14143161
24143151
34144151
44144141
54244141
64244131
74344131
84343121
94443121
104443121
114542121
124542121
134641121
144640131
154740131
164839130
174838130
184938130
195037130
205136130
215135131
225234131
235433121
245532121
255731111
265830111
275930101
28612991
29612991
30632881
31642871

Wind in August

Winds average 12 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
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

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 5:09 AM to 5:55 AM, and sunset from 8:18 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.25:098:18
215.15:108:17
315.15:128:15
415.05:138:13
514.95:158:12
614.95:168:10
714.85:188:08
814.85:198:07
914.75:218:05
1014.75:228:03
1114.65:248:01
1214.65:257:59
1314.55:277:57
1414.45:297:56
1514.45:307:54
1614.35:327:52
1714.35:337:50
1814.25:357:48
1914.25:367:46
2014.15:387:44
2114.05:407:42
2214.05:417:39
2313.95:437:37
2413.85:447:35
2513.85:467:33
2613.75:477:31
2713.75:497:29
2813.65:517:27
2913.55:527:24
3013.55:547:22
3113.45:557:20

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.44 kWh/m².

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.31 kWh/m² in June across the year — August's 4.44 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.8Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.5Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.2Bright
224.2Bright
234.1Bright
244.1Bright
254.0Bright
264.0Moderate
273.9Moderate
283.9Moderate
293.8Moderate
303.8Moderate
313.7Moderate
Planning a trip in August

Is August a good time to visit Grivegnée?

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

6.2
Sightseeing
1st-best month of the year
4.2
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Grivegnée for sightseeing.

What to pack for Grivegnée in August

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

In August, Grivegnée sees daytime highs around 22°C and nights near 13°C. Worth packing: rain gear. About 13 days see rain.

rain gear

UV index in Grivegnée 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 Grivegnée 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 Grivegnée 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 Grivegnée is worst in April — around 18 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1218 µg/m³Dec 1011 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar17Moderate
Apr18Moderate
May15Moderate
Jun15Moderate
Jul13Moderate
Aug14Moderate
Sep14Moderate
Oct12Good
Nov11Good
Dec11Good
Location & terrain

Where is Grivegnée?

Grivegnée sits at 50.6°N, 5.6°E, 99 m above sea level, in Belgium. The nearest listed city is Liège, 3.0 km away.

Topography around Grivegnée

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

Within 3 km, the terrain around Grivegnée has only modest variations in elevation — a maximum elevation change of 186 m around an average of 113 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 321 m; within 80 km, large variations in elevation — a maximum elevation change of 1,000 m.

The land around Grivegnée is covered by artificial surfaces (43%) and trees (42%) within 3 km, trees (38%) and grassland (27%) within 16 km, and trees (41%), grassland (26%) and cropland (26%) within 80 km.

3 km
186 m
16 km
321 m
80 km
1,000 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Liège 3.0 km · Chaudfontaine 5.0 km · Herstal 5.0 km · Fléron 5.0 km · Saint-Nicolas 6.0 km · Ans 8.0 km · Seraing 9.0 km · Soumagne 10 km

Belgium travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 81% of US
price level, 2025
GDP per capita
$60,750
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2021
Road deaths
5.8
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 608
Religion
Roman Catholic 57%nonbeliever/agnostic 20%atheist 9%Muslim 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 Grivegnée (50.6215°, 5.611°, elevation 99 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).