Dreux weather in July

In July, Dreux sees average daytime highs of 24°C and overnight lows near 14°C, with 48 mm of rain across 8.9 wet days and about 15.5 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 25°C by the end. The sky is clear or mostly clear about 23% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 54 min at the start of July to 15 hours by month's end. Set against the rest of the year, July is Dreux's 2nd-clearest and 11th-windiest month. For the whole year in context, see Dreux's year-round climate.

Daytime high
24°
1st warmest
Overnight low
14°
12th coldest
Rainfall
48 mm
8.9 wet days
Daylight
15 h 36 min
5:13 AM – 8:47 PM
Cloud cover
62%
2nd clearest
Wind
12 km/h
11th windiest
Solar energy
5.48 kWh/m²
Travel score
7.0
out of 10
Air quality
Excellent
PM10 12.1 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 23°C in the first days to 25°C by the end.

A typical July day in Dreux 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 19°C and 29°C. Set against its neighbours, July runs about 3°C warmer than June and on par with August.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32313
42313
52313
62313
72313
82313
92313
102313
112313
122313
132313
142414
152414
162414
172414
182414
192414
202414
212414
222414
232414
242414
252514
262514
272514
282514
292514
302514
312514

How July really feels in Dreux

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.

Dreux weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 4910.518.50.7
Feb / 419.41.39.81.2
Mar11° / 479.90.511.62.8
Apr14° / 4810.8013.44.1
May18° / 6010.70155.4
Jun21° / 12°549.6015.96.3
Jul24° / 14°488.9015.57.0
Aug24° / 13°508.2014.27.1
Sep20° / 11°438.2012.46.5
Oct16° / 5710.2010.54.6
Nov10° / 5310.80.292.2
Dec / 6112.20.98.10.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 19% of July, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33862
43862
53862
63862
74060
84060
94060
104159
114159
124159
134357
144357
154357
164456
174456
184456
194456
204456
214456
224357
234357
244357
254258
264258
274357
284357
294357
304258
314258

Chance of precipitation in July

Any precipitation

Dreux gets around 48 mm of rain over 8.9 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 28% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
332
432
532
632
731
831
930
1029
1129
1228
1327
1427
1526
1626
1726
1826
1926
2026
2126
2226
2326
2426
2526
2627
2727
2827
2927
3027
3128

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 49% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1553591
2543691
3543691
4533791
5533791
6533791
7533791
8533791
9533791
105237101
115237101
125237101
135137111
145236111
155236111
165037121
174937131
184837131
194737141
204738141
214638151
224538151
234439161
244439161
254439161
264339161
274339161
284340161
294340161
304340161
314339161

Wind in July

Winds average 12 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.

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
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 54 min at the start of July to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over July. Sunrise moves from 5:01 AM to 5:31 AM, and sunset from 8:55 PM to 8:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.95:018:55
215.95:028:55
315.95:028:54
415.95:038:54
515.85:038:54
615.85:048:53
715.85:058:53
815.85:068:52
915.85:078:52
1015.75:078:51
1115.75:088:51
1215.75:098:50
1315.75:108:49
1415.65:118:49
1515.65:128:48
1615.65:138:47
1715.55:148:46
1815.55:158:45
1915.55:168:44
2015.45:188:43
2115.45:198:42
2215.45:208:41
2315.35:218:40
2415.35:228:39
2515.25:238:38
2615.25:258:37
2715.25:268:36
2815.15:278:34
2915.15:288:33
3015.05:308:32
3115.05:318:30

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.48 kWh/m².

For context, solar energy here swings from a low near 0.81 kWh/m² to a high of 5.61 kWh/m² in June across the year — July's 5.48 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.3Bright
315.3Bright
Planning a trip in July

Is July a good time to visit Dreux?

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

7.0
Sightseeing
2nd-best month of the year
5.8
Beach & pool
2nd-best month of the year

July is one of the better times to visit Dreux for general sightseeing.

What to pack for Dreux in July

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

In July, Dreux sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Dreux 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 Dreux peaks around August 11 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 11UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Dreux 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 Dreux is worst in April — around 18 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateApr 1018 µg/m³Jul 2012 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar18Moderate
Apr18Moderate
May15Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep13Moderate
Oct13Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Dreux?

Dreux sits at 48.7°N, 1.4°E, 96 m above sea level, in France. The nearest listed city is Chartres, 33 km away.

Topography around Dreux

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

Within 3 km, the terrain around Dreux has only modest variations in elevation — a maximum elevation change of 76 m around an average of 122 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 145 m; within 80 km, significant variations in elevation — a maximum elevation change of 347 m.

The land around Dreux is covered by artificial surfaces (35%), trees (25%) and cropland (25%) within 3 km, cropland (62%) and trees (26%) within 16 km, and cropland (56%) and trees (27%) within 80 km.

3 km
76 m
16 km
145 m
80 km
347 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Chartres 33 km · Lucé 34 km · Rambouillet 36 km · Évreux 36 km · Mantes-la-Ville 36 km · Mantes-la-Jolie 38 km · Limay 40 km · Vernon 40 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 Dreux (48.7365°, 1.3657°, elevation 96 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).