Vernon weather in July

In July, Vernon sees average daytime highs of 24°C and overnight lows near 14°C, with 50 mm of rain across 9.1 wet days and about 15.6 hours of daylight. It is the 1st-warmest and 10th-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 16 hours at the start of July to 15 hours by month's end. Set against the rest of the year, July is Vernon's 2nd-clearest and 11th-windiest month. For the whole year in context, see Vernon's year-round climate.

Daytime high
24°
1st warmest
Overnight low
14°
12th coldest
Rainfall
50 mm
9.1 wet days
Daylight
15 h 36 min
5:11 AM – 8:48 PM
Cloud cover
63%
2nd clearest
Wind
12 km/h
11th windiest
Solar energy
5.38 kWh/m²
Travel score
7.0
out of 10

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 Vernon 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
112314
122314
132314
142414
152414
162414
172414
182414
192414
202414
212414
222414
232414
242414
252414
262514
272514
282514
292514
302514
312514

How July really feels in Vernon

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.

Vernon weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5311.10.98.50.8
Feb / 46101.19.81.2
Mar11° / 5110.50.411.62.8
Apr15° / 5111013.44.2
May18° / 6211.50155.4
Jun21° / 12°5810.2015.96.3
Jul24° / 14°509.1015.67.0
Aug24° / 14°569.2014.26.9
Sep20° / 11°448.5012.46.4
Oct16° / 6210.9010.54.6
Nov10° / 5911.20.28.92.3
Dec / 6812.40.98.11.0

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 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33862
43862
53862
63961
73961
84060
94060
104159
114159
124258
134258
144258
154357
164357
174357
184357
194357
204357
214357
224357
234357
244456
254456
264555
274555
284456
294456
304456
314456

Chance of precipitation in July

Any precipitation

Vernon gets around 50 mm of rain over 9.1 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 29% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
133
233
334
433
533
633
732
831
930
1029
1129
1228
1327
1426
1526
1626
1726
1826
1926
2026
2127
2227
2327
2428
2528
2628
2729
2829
2929
3030
3130

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 45% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15136112
25137111
35137111
45038111
54938111
64939111
74939111
84939121
94939121
104839121
114839121
124839121
134739121
144739121
154639131
164640132
174540142
184440142
194340152
204240162
214240162
224141162
234041172
244041172
254041172
263942172
273942172
283942172
293842172
303842182
313842182

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

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 hours 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 60 minutes over July. Sunrise moves from 4:59 AM to 5:30 AM, and sunset from 8:56 PM to 8:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.04:598:56
215.95:008:56
315.95:008:56
415.95:018:55
515.95:028:55
615.95:028:55
715.95:038:54
815.85:048:54
915.85:058:53
1015.85:058:53
1115.85:068:52
1215.75:078:51
1315.75:088:51
1415.75:098:50
1515.65:108:49
1615.65:118:48
1715.65:128:47
1815.55:138:46
1915.55:158:45
2015.55:168:44
2115.45:178:43
2215.45:188:42
2315.45:198:41
2415.35:208:40
2515.35:228:39
2615.25:238:38
2715.25:248:36
2815.25:268:35
2915.15:278:34
3015.15:288:32
3115.05:308:31

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.38 kWh/m².

For context, solar energy here swings from a low near 0.78 kWh/m² to a high of 5.54 kWh/m² in June across the year — July's 5.38 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in July

Is July a good time to visit Vernon?

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

7.0
Sightseeing
1st-best month of the year
5.7
Beach & pool
1st-best month of the year

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

What to pack for Vernon in July

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

In July, Vernon 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 Vernon 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 Vernon 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
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Vernon 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 Vernon 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 Vernon?

Vernon sits at 49.1°N, 1.5°E, 29 m above sea level, in France. The nearest listed city is Mantes-la-Jolie, 22 km away.

Topography around Vernon

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

Within 3 km, the terrain around Vernon has only modest variations in elevation — a maximum elevation change of 161 m around an average of 80 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 177 m; within 80 km, significant variations in elevation — a maximum elevation change of 324 m.

The land around Vernon is covered by trees (53%) within 3 km, cropland (45%) and trees (36%) within 16 km, and cropland (50%) and trees (30%) within 80 km.

3 km
161 m
16 km
177 m
80 km
324 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Mantes-la-Jolie 22 km · Mantes-la-Ville 22 km · Limay 23 km · Évreux 24 km · Louviers 26 km · Les Mureaux 34 km · Verneuil-sur-Seine 39 km · Elbeuf 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 Vernon (49.0929°, 1.4633°, 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).