Spa weather in July

In July, Spa sees average daytime highs of 22°C and overnight lows near 13°C, with 89 mm of rain across 14.6 wet days and about 15.8 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 22°C by the end. The sky is clear or mostly clear about 20% of the time in July, and the air most often feels dry.

Daylight stretches from about 16 h 12 min at the start of July to 15 h 12 min by month's end. Set against the rest of the year, July is Spa's 2nd-clearest and 11th-windiest month. For the whole year in context, see Spa's year-round climate.

Daytime high
22°
1st warmest
Overnight low
13°
12th coldest
Rainfall
89 mm
14.6 wet days
Daylight
15 h 48 min
4:48 AM – 8:37 PM
Cloud cover
65%
2nd clearest
Wind
12 km/h
11th windiest
Solar energy
5.11 kWh/m²
Travel score
5.9
out of 10

Spa is town in Spa municipality, Belgium.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 22°C by the end.

A typical July day in Spa 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 16°C and 28°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52112
62113
72113
82113
92113
102113
112113
122113
132113
142113
152113
162213
172213
182213
192213
202213
212213
222214
232214
242214
252214
262214
272214
282214
292214
302214
312214

How July really feels in Spa

Once humidity and wind are folded in, July 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

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Spa weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9814.94.58.30.0
Feb / 8713.75.49.70.1
Mar / 8715.13.611.51.5
Apr13° / 6312.60.613.53.3
May17° / 7414015.24.7
Jun20° / 11°8413.7016.15.5
Jul22° / 13°8914.6015.85.9
Aug21° / 13°8913.6014.35.9
Sep18° / 10°7411.9012.45.2
Oct13° / 7613.2010.43.4
Nov / 8214.41.78.71.2
Dec / 10315.84.87.90.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 17% of July, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33565
43565
53367
63367
73367
83367
93367
103367
113367
123466
133565
143565
153664
163664
173763
183862
193862
203961
213961
224060
234060
244159
254159
264159
274159
284159
294159
304159
314159

Chance of precipitation in July

Any precipitation

Spa gets around 89 mm of rain over 14.6 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
247
347
448
548
649
749
849
949
1049
1148
1248
1347
1447
1547
1646
1746
1846
1946
2046
2146
2245
2345
2445
2545
2644
2744
2843
2943
3043
3142

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the dry band about 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1662491
2672490
3662590
4652690
5652690
6642790
7632890
8632890
9622990
10613090
11613090
12613090
13603190
145931100
155931100
165732110
175632120
185532130
195433130
205333140
215034151
225034151
234935151
244835161
254736161
264737161
274638161
284638151
294539151
304540151
314541140

Wind in July

Winds average 12 km/h in July.

Across July, 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
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 12 min at the start of July to 15 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over July. Sunrise moves from 4:35 AM to 5:07 AM, and sunset from 8:45 PM to 8:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.24:358:45
216.24:358:45
316.14:368:45
416.14:378:44
516.14:378:44
616.14:388:43
716.14:398:43
816.04:408:42
916.04:418:42
1016.04:428:41
1116.04:438:41
1215.94:448:40
1315.94:458:39
1415.94:468:38
1515.84:478:37
1615.84:488:37
1715.84:498:36
1815.74:508:35
1915.74:518:34
2015.74:528:33
2115.64:548:31
2215.64:558:30
2315.54:568:29
2415.54:578:28
2515.54:598:27
2615.45:008:25
2715.45:018:24
2815.35:038:23
2915.35:048:21
3015.25:068:20
3115.25:078:18

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.11 kWh/m².

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.32 kWh/m² in June across the year — July's 5.11 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in July

Is July a good time to visit Spa?

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

5.9
Sightseeing
1st-best month of the year
3.9
Beach & pool
1st-best month of the year

July is a reasonable time to visit Spa for sightseeing.

What to pack for Spa in July

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

In July, Spa sees daytime highs around 22°C and nights near 13°C. Pack rain gear. Worth having: sun protection. About 15 days see rain.

rain gearsun protection

UV index in Spa in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Spa peaks around July 16 at about 7 (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 16UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul7High
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Spa in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Spa is worst in April — around 18 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 11 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1218 µg/m³Nov 2211 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar17Moderate
Apr18Moderate
May15Moderate
Jun14Moderate
Jul13Moderate
Aug14Moderate
Sep13Moderate
Oct12Good
Nov11Good
Dec11Good
Location & terrain

Where is Spa?

Spa sits at 50.5°N, 5.9°E, 0 m above sea level, in Belgium. The nearest listed city is Heusy, 10 km away.

SoumagneHerveFléronChaudfontaineEupenGrivegnée

Topography around Spa

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

Within 3 km, the terrain around Spa has significant variations in elevation — a maximum elevation change of 353 m around an average of 369 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 615 m; within 80 km, large variations in elevation — a maximum elevation change of 1,001 m.

The land around Spa is covered by trees (79%) within 3 km, trees (61%) and grassland (33%) within 16 km, and trees (43%), grassland (26%) and cropland (24%) within 80 km.

3 km
353 m
16 km
615 m
80 km
1,001 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Heusy 10 km · Verviers 12 km · Soumagne 17 km · Herve 18 km · Fléron 20 km · Chaudfontaine 20 km · Eupen 20 km · Grivegnée 24 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 Spa (50.4838°, 5.8667°, elevation 0 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).