Gembloux weather in August

In August, Gembloux sees average daytime highs of 22°C and overnight lows near 13°C, with 78 mm of rain across 12.2 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 21°C by the end. The sky is clear or mostly clear about 17% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 06 min at the start of August to 13 h 24 min by month's end. Set against the rest of the year, August is Gembloux's 1st-clearest and 12th-windiest month. For the whole year in context, see Gembloux's year-round climate.

Daytime high
22°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
78 mm
12.2 wet days
Daylight
14 h 18 min
5:35 AM – 7:55 PM
Cloud cover
65%
1st clearest
Wind
12 km/h
12th windiest
Solar energy
4.45 kWh/m²
Travel score
6.3
out of 10

Gembloux is town in Gembloux municipality, Belgium.

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 21°C by the end.

A typical August day in Gembloux 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 18°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
112314
122314
132314
142214
152214
162214
172213
182213
192213
202213
212213
222213
232213
242113
252113
262113
272113
282112
292112
302112
312012

How August really feels in Gembloux

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.

Gembloux 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 / 6612.51.98.30.1
Feb / 6211.62.89.70.5
Mar10° / 6112.71.311.52.1
Apr14° / 5311.80.113.53.7
May17° / 6512.8015.25.1
Jun20° / 12°7112.2016.15.8
Jul22° / 14°7512.7015.86.2
Aug22° / 13°7812.2014.36.3
Sep19° / 11°5810.9012.45.7
Oct14° / 6111.7010.43.8
Nov / 6512.30.78.71.6
Dec / 8013.92.17.80.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% 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 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34258
44258
54159
64060
73961
83961
93862
103763
113763
123664
133664
143664
153565
163466
173466
183466
193466
203466
213466
223466
233466
243466
253466
263565
273565
283565
293565
303565
313565

Chance of precipitation in August

Any precipitation

Gembloux gets around 78 mm of rain over 12.2 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 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
238
338
438
538
638
738
838
939
1039
1139
1240
1340
1440
1541
1641
1741
1841
1941
2041
2141
2241
2341
2440
2540
2639
2739
2838
2938
3037
3137

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 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13943181
23943181
33943171
43943171
53943161
64043161
74043161
84143151
94143151
104243151
114242151
124242151
134342151
144341151
154441151
164441151
174540151
184539151
194639151
204738141
214837141
225036141
235035141
245333131
255432131
265631121
275730121
285929111
295929111
306128101
31642790

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 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 06 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 102 minutes over August. Sunrise moves from 5:13 AM to 5:59 AM, and sunset from 8:22 PM to 7:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.15:138:22
215.15:148:20
315.05:168:19
415.05:178:17
514.95:198:15
614.95:208:14
714.85:228:12
814.85:238:10
914.75:258:08
1014.75:268:06
1114.65:288:05
1214.65:298:03
1314.55:318:01
1414.45:327:59
1514.45:347:57
1614.35:357:55
1714.35:377:53
1814.25:397:51
1914.15:407:49
2014.15:427:47
2114.05:437:45
2214.05:457:43
2313.95:467:41
2413.85:487:39
2513.85:507:37
2613.75:517:34
2713.75:537:32
2813.65:547:30
2913.55:567:28
3013.55:577:26
3113.45:597:23

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.45 kWh/m².

For context, solar energy here swings from a low near 0.65 kWh/m² to a high of 5.32 kWh/m² in June across the year — August's 4.45 kWh/m² falls in the middle.

0246151015202531
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
144.6Bright
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
313.8Moderate
Planning a trip in August

Is August a good time to visit Gembloux?

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

6.3
Sightseeing
1st-best month of the year
4.4
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Gembloux for sightseeing.

What to pack for Gembloux in August

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

In August, Gembloux sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes and rain gear. About 12 days see rain.

light clothesrain gear

UV index in Gembloux 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 Gembloux peaks around July 13 at about 7 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Gembloux 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 Gembloux is worst in April — around 18 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 11 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1217 µg/m³Dec 1111 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar17Moderate
Apr18Moderate
May15Moderate
Jun14Moderate
Jul13Moderate
Aug14Moderate
Sep13Moderate
Oct12Good
Nov11Good
Dec11Good
Location & terrain

Where is Gembloux?

Gembloux sits at 50.6°N, 4.7°E, 158 m above sea level, in Belgium. The nearest listed city is Louvain-la-Neuve, 13 km away.

NamurJambesWavreChâtelineauRixensartChâtelet

Topography around Gembloux

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

Within 3 km, the terrain around Gembloux has only modest variations in elevation — a maximum elevation change of 63 m around an average of 157 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 182 m; within 80 km, large variations in elevation — a maximum elevation change of 761 m.

The land around Gembloux is covered by cropland (50%) and trees (25%) within 3 km, cropland (52%) and trees (26%) within 16 km, and trees (40%), cropland (27%) and grassland (24%) within 80 km.

3 km
63 m
16 km
182 m
80 km
761 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Louvain-la-Neuve 13 km · Fleurus 14 km · Namur 16 km · Jambes 17 km · Wavre 19 km · Châtelineau 21 km · Rixensart 21 km · Châtelet 21 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 Gembloux (50.5615°, 4.6989°, elevation 158 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).