Douai weather in July

In July, Douai sees average daytime highs of 23°C and overnight lows near 14°C, with 60 mm of rain across 10.8 wet days and about 15.7 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 19% 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 Douai's 2nd-clearest and 11th-windiest month. For the whole year in context, see Douai's year-round climate.

Daytime high
23°
1st warmest
Overnight low
14°
12th coldest
Rainfall
60 mm
10.8 wet days
Daylight
15 h 48 min
4:59 AM – 8:47 PM
Cloud cover
64%
2nd clearest
Wind
13 km/h
11th windiest
Solar energy
5.24 kWh/m²
Travel score
6.6
out of 10
Air quality
Moderate
PM2.5 12.4 µg/m³ · 2019

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 22°C in the first days to 24°C by the end.

A typical July day in Douai reaches about 23°C in the afternoon and slips back to 14°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, 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)
12213
22213
32213
42213
52213
62213
72213
82213
92213
102213
112214
122214
132214
142214
152314
162314
172314
182314
192314
202314
212314
222314
232314
242314
252314
262414
272414
282414
292414
302414
312414

How July really feels in Douai

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.

Douai weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5711.318.30.6
Feb / 5010.31.39.71.0
Mar11° / 5111.10.711.52.5
Apr14° / 5011.20.113.54.0
May18° / 6412.4015.25.2
Jun20° / 12°6110.7016.16.0
Jul23° / 14°6010.8015.76.6
Aug23° / 14°6811.1014.36.5
Sep19° / 11°489.4012.46.1
Oct15° / 6011.1010.54.3
Nov10° / 6011.90.38.82.1
Dec / 7012.81.17.90.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 22% of July, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43664
53763
63664
73664
83664
93763
103763
113862
123862
133862
143961
153961
164060
174159
184258
194258
204357
214456
224456
234555
244555
254654
264654
274654
284654
294654
304555
314555

Chance of precipitation in July

Any precipitation

Douai gets around 60 mm of rain over 10.8 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 35% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
337
438
538
638
738
838
938
1037
1137
1236
1336
1435
1535
1634
1733
1833
1933
2032
2132
2232
2332
2432
2532
2632
2732
2832
2932
3032
3132

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 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15334121
25235121
35136121
45136121
55037121
64937131
74938131
84838131
94839131
104739131
114739131
124640131
134640131
144540131
154540141
164441141
174341141
184341151
194242161
204142161
214042171
224042171
233943171
243943171
253843181
263843181
273844181
283744181
293744181
303645181
313645181

Wind in July

Winds average 13 km/h in July.

Across July, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
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
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012calm
3112calm

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 4:46 AM to 5:19 AM, and sunset from 8:56 PM to 8:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.24:468:56
216.14:478:55
316.14:488:55
416.14:488:55
516.14:498:54
616.14:508:54
716.04:518:54
816.04:518:53
916.04:528:52
1016.04:538:52
1115.94:548:51
1215.94:558:50
1315.94:568:50
1415.94:578:49
1515.84:588:48
1615.84:598:47
1715.85:018:46
1815.75:028:45
1915.75:038:44
2015.75:048:43
2115.65:058:42
2215.65:078:41
2315.55:088:40
2415.55:098:39
2515.45:108:37
2615.45:128:36
2715.45:138:35
2815.35:148:33
2915.35:168:32
3015.25:178:30
3115.25:198:29

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.24 kWh/m².

For context, solar energy here swings from a low near 0.69 kWh/m² to a high of 5.44 kWh/m² in June across the year — July's 5.24 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.2Bright
155.2Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.1Bright
Planning a trip in July

Is July a good time to visit Douai?

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

6.6
Sightseeing
1st-best month of the year
4.9
Beach & pool
1st-best month of the year

July is a reasonable time to visit Douai for sightseeing.

What to pack for Douai in July

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

In July, Douai sees daytime highs around 23°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 Douai 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 Douai peaks around July 14 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 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 14UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Douai 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 Douai is worst in April — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Douai's WHO annual average of 12.4 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodApr 1116 µg/m³Nov 2010 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar15Moderate
Apr16Moderate
May14Moderate
Jun13Moderate
Jul11Good
Aug12Moderate
Sep12Good
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Douai?

Douai sits at 50.4°N, 3.1°E, 29 m above sea level, in France. The nearest listed city is Sin-le-Noble, 4.0 km away.

Topography around Douai

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

Within 3 km, the terrain around Douai has only modest variations in elevation — a maximum elevation change of 35 m around an average of 28 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 99 m; within 80 km, significant variations in elevation — a maximum elevation change of 374 m.

The land around Douai is covered by artificial surfaces (42%) and trees (29%) within 3 km, cropland (51%) and trees (21%) within 16 km, and cropland (61%) within 80 km.

3 km
35 m
16 km
99 m
80 km
374 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Sin-le-Noble 4.0 km · Hénin-Beaumont 9.0 km · Carvin 16 km · Avion 18 km · Lens 19 km · Liévin 22 km · Arras 23 km · Denain 23 km

France travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 77% of US
price level, 2025
GDP per capita
$48,986
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 539
Religion
Roman Catholic 47%none 33%Muslim 4%Protestant 2%

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 Douai (50.3707°, 3.0792°, elevation 29 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).