Dreux weather in May

In May, Dreux sees average daytime highs of 18°C and overnight lows near 9°C, with 60 mm of rain across 10.7 wet days and about 15 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 19°C by the end. The sky is clear or mostly clear about 16% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of May to 15 h 36 min by month's end. Set against the rest of the year, May is Dreux's 6th-clearest and 8th-windiest month. For the whole year in context, see Dreux's year-round climate.

Daytime high
18°
5th warmest
Overnight low
8th coldest
Rainfall
60 mm
10.7 wet days
Daylight
15 hours
5:20 AM – 8:22 PM
Cloud cover
69%
6th clearest
Wind
13 km/h
8th windiest
Solar energy
5.26 kWh/m²
Travel score
5.4
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 May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 19°C by the end.

A typical May day in Dreux reaches about 18°C in the afternoon and slips back to 9°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, May runs about 3°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1167
2167
3167
4168
5168
6168
7178
8178
9178
10178
11178
12178
13178
14178
15189
16189
17189
18189
19189
20189
21189
22199
23199
241910
251910
261910
271910
281910
291910
301910
312010

How May really feels in Dreux

Once humidity and wind are folded in, May 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

May 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 May compares with the rest of the year at a glance. May is the 5th-warmest and 2nd-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32674
42773
52773
62773
72971
82971
93070
103070
113070
123169
133169
143169
153169
163268
173367
183367
193268
203268
213367
223367
233367
243367
253367
263268
273367
283367
293367
303367
313268

Chance of precipitation in May

Any precipitation

Dreux gets around 60 mm of rain over 10.7 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
241
341
440
540
639
739
838
937
1037
1137
1237
1336
1436
1536
1635
1735
1834
1934
2033
2133
2233
2332
2432
2532
2632
2732
2832
2932
3032
3133

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19730
29730
39640
49550
59550
69460
79460
89370
99370
109280
119280
129280
139280
149091
159091
1689101
1789101
1888111
1988111
2087121
2185132
2284142
2384142
2483152
2581163
2680173
2779183
2877194
2976204
3075205
3174215

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light 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
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 18 min at the start of May to 15 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over May. Sunrise moves from 5:43 AM to 5:04 AM, and sunset from 8:00 PM to 8:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:438:00
214.35:418:02
314.45:408:03
414.45:388:05
514.55:368:06
614.55:358:08
714.65:338:09
814.75:328:11
914.75:308:12
1014.75:288:13
1114.85:278:15
1214.85:258:16
1314.95:248:18
1414.95:238:19
1515.05:218:20
1615.05:208:22
1715.15:198:23
1815.15:178:24
1915.25:168:26
2015.25:158:27
2115.25:148:28
2215.35:138:29
2315.35:118:31
2415.45:108:32
2515.45:098:33
2615.45:088:34
2715.55:078:35
2815.55:078:37
2915.55:068:38
3015.65:058:39
3115.65:048:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.26 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 — May's 5.26 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.9Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.2Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Is May a good time to visit Dreux?

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

5.4
Sightseeing
5th-best month of the year
1.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit Dreux for sightseeing.

What to pack for Dreux in May

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

In May, Dreux sees daytime highs around 18°C and nights near 9°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Dreux in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 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 May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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
May 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).